Intel Skylake i7 6700K & i5 6600K vs AMD Vishera FX 8370 ; A Gaming Comparison

Posted Jun 21, 2016
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Carrying on from the i5 6400 vs FX-8370 gaming comparison that was published a few weeks ago we now have the follow up for it with a few additions and changes.

The last round of testing was done at 1440p across 8 different games but we have expanded on that including 1080p testing and increasing the amount of games tested from 8 to 14 at both stock and overclocked.

let’s go over the processors and system configurations I’ll be using:

FX-8370 CPUZ
The AMD FX-8370 is a 125w TDP multiplier unlocked 8 core CPU built on a 32nm process, features 8MB of L2 cache (split 4 ways) and 8MB of L3 cache with a base frequency of 4.0Ghz and a turbo speed of 4.3Ghz.

i5 6600k CPU-Z
The Intel Core i5 6600k is a 91w TDP quad core processor built on a 14nm process with an unlocked multiplier, it features 1MB of L2 cache (split 4 ways) and 6MB of L3 cache with a base frequency of 3.5Ghz and a turbo speed of 3.9Ghz.

6700k CPU-Z

And finally we have the Intel Core i7 6700k, this is a 91w TDP quad core processor built on a 14nm process with Hyperthreading and an unlocked multiplier, It has 1MB of L2 cache (split 4 ways) and 8MB of L3 cache with a base frequency of 4.0Ghz and a turbo speed of 4.2Ghz.

This is set to be a very interesting comparison here, on one corner we have AMDs aging 8 core up against Intels newest i5 quad core and the i7 quad core with Hyperthreading.

So before we finally dive into the results let me tell you the rest of the systems used here:

First up is the AM3+ rig

CPU: AMD FX-8370 (Stock 4.0/4.3Ghz – 4.8Ghz Overclocked)
Motherboard: Asus ROG Crosshair V Formula-Z
Memory: 16GB G.SKILL TridentX DDR3 2400Mhz 10-12-12-31
GPU: XFX R9 Fury Triple Dissipation
OS Drive: Samsung 840 Evo 250GB
Games Drive: WD Black 2TB HDD
Power Supply: Silverstone Strider Gold 1200w
OS: Windows 10 Pro 64-bit

And now we have the Socket 1151 Rig:

CPU: Intel Core i5 6600k (Stock 3.5/3.9Ghz – 4.6Ghz Overclocked)
CPU: Intel Core i7 6700k (Stock 4.0/4.2Ghz – 4.6Ghz Overclocked)
Motherboard: MSI Xpower Gaming Titanium Edition
Memory: 16GB HyperX Savage 2800Mhz 14-16-16-39
GPU: XFX R9 Fury Triple Dissipation
OS Drive: HyperX Predator M.2 240GB
Games Drive: Seagate 2TB SSHD
Power Supply: Corsair AX1200i
OS: Windows 10 Pro 64-bit

Now I’ll take the moment here to address some of the questions that arose from the original article:

Each benchmark is run 3 times (432 individual tests) and then the average of those 3 runs is taken and used as the final result.

In terms of using a Seagate SSHD for my Intel system and a “slower” WD Black HDD for AMD I did run some testing between them and found no changes to fps performance, only load times were different.

And finally this is the list of games tested:

Grand Theft Auto V (Ultra Settings)
Fallout 4 (Ultra Preset)
Mad Max (Very High Preset)
Crysis 3 (Ultra Preset)
Battlefield 4 (Ultra Preset)
Star Wars: Battlefront (Ultra Preset)
Dirt Rally (Ultra Preset)
Grid: Autosport (Ultra Preset)
Metro: LL Redux (Very High Settings)
Middle Earth: Shadow of Mordor (Very High Preset)
Thief (Very High Preset)
Rise of The Tomb Raider (Very High Preset)
The Witcher 3 (Ultra Preset – No Hairworks)
Ashes of the Singularity (Extreme Preset DX12)

Now that’s all out of the way let’s dive into the results shall we?

First up is 1080p performance:

Grand Theft Auto V

GTA V 1080p Stock Clocks

In GTA V the i5 managed a min of 8fps and a avg of 96fps, the FX-8370 scored the same 8fps on the minimum as the i5 but was 30fps lower on the avg with 66fps, meanwhile the i7 6700k managed a minimum of 23fps and an average of 98.

GTA V 1080p Overclocked

Once overclocked the i5 6600k gained 13fps on the minimum going from 8fps to 21fps and an extra 10fps increase for the average, for the FX-8370 the extra speed helped it but not enough to catch the newer Intel CPUs with it going from 8fps to 14fps for the minimum and a 10fps increase on the average to 76fps.
The 6700k meanwhile went a little backwards on the minimum going from 23fps to 19fps but increased its average by 4fps going from 98fps to 102fps.

Fallout 4

Fallout 4 1080p Stock Clocks

In Fallout 4 the i5 6600k scored a minimum fps of 47 and an average of 88, the FX-8370 is quite a bit behind at 27fps minimum and 61fps average but the i7 6700k had no issues providing a minimum of 55fps and an average of 86fps.

 

Fallout 4 1080p Overclocked

Overclocking increased the fps across the board for all 3 processors with the 6600k gaining 7fps for the minimum and 10fps on the average, the FX-8370 gaining 3fps minimum and 8fps average going from 61fps to 69fps.
The i7 6700k gained 2fps minimum but gained an impressive 16fps on the average going from 86fps to 102fps.

Mad Max

Mad Max 1080p Stock Clocks

In Mad Max the i5 6600k managed a minimum fps of 95 and an average of 125, the FX-8370 managed a slightly higher minimum of 98fps but a lower average of 115fps. The i7 6700k meanwhile scored the lowest minimum fps of the 3 with 92fps but also managed the highest average with 126fps.

Mad Max 1080p Overclocked

Once overclocked the fps increased across the board except in the case of the i5 which managed to go down 3fps on the minimum from 95 to 92fps and saw no change in the average fps, the FX-8370 and i7 6700k on the other hand saw increases to both the minimum and average with the 8370 going from 98fps minimum to 116fps and from 115fps average to 129fps which was rather impressive, the 6700k also did quite well going from 92fps minimum to 106fps and raising the average fps by 9 from 126fps to 135fps.

Crysis 3

Crysis 3 1080p Stock Clocks

For Crysis 3 the 6600k is the performance leader here with it managing 42fps minimum and 68fps average while the FX-8370 recorded a minimum of 35fps and an average of 56fps, with the i7 6700k I can only assume there is some issue with Hyperthreading as it scored a 27fps minimum and a 58fps avg.

Crysis 3 1080p Overclocked

Overclocking helped all 3 processors with the i5 6600k going from 42fps to 53fps for the minimum and increased the average by 1fps going from 68fps to 69fps, the FX-8370 gained a 7fps boost on the minimum going from 35fps to 42fps and a 3fps increase to the average going from 56fps to 59fps meanwhile the 6700k suffered from the same issues overclocked as it did at stock with it scoring the lowest minimum fps of the 3 with 36fps but it was an improvement over the stock 27fps and it increased the average fps from 58fps to 66fps.

Battlefield 4

Battlefield 4 1080p Stock Clocks

Battlefield 4 was a nice surprise with the all 3 CPUs performing very much the same and only a few fps difference separating them.

Battlefield 4 1080p Overclocked

Once overclocked there still wasn’t much variation between them but the FX-8370 did fall behind a bit with it recording a 86fps minimum compared to the i5 with 97fps and the i7 6700k recording 98fps on the minimum.

Star Wars: Battlefront

Star Wars Battlefront 1080p Stock Clocks

In Star Wars: Battlefront the AMD chip put up a good showing with it scoring the highest minimum of 93fps compared to the 78fps for the i5 and 86fps for the i7, and for the averages the 6700k posted the highest with 117fps compared to 113fps for the 8370 and 108fps for the 6600k.

Star Wars Battlefront 1080p Overclocked

Overclocking proved to be of greatest benefit to the i5 6600k with a sizeable 25fps increase to the minimum and a 27fps increase to the average while the FX-8370 saw an 8fps increase to minimum fps and an increase of 11fps to its average, the 6700k went from 86fps to 99fps minimum and also increased its average fps from 117fps to 132fps.

Dirt Rally

Dirt Rally 1080p Stock Clocks

With Dirt Rally it’s clear from the start that this game favours the faster single core performance of the Intel CPUs over AMDs FX with the 6600k scoring 86fps minimum and 106fps average vs the FX-8370s 54fps minimum and 82fps average.

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Dirt Rally 1080p Overclocked

The i5 6600k and FX-8370 benefited the most from overclocking with the i5 gaining 9fps on both the minimum and average and the FX gaining 12fps minimum and 9fps average but strangely enough the 6700k didn’t see the same jump that the i5 did with the minimum fps only increasing by 1 and the average actually going down by 1.

GRID: Autosport

GRID Autosport 1080p Stock Clocks

A common theme among games of the racing genre is that they prefer single core performance over multi as we can see the i5 6600k dominates the FX-8370 here and even shows up the i7 6700k which seems to suggest this game doesn’t like Hyperthreading all that much either.

GRID Autosport 1080p Overclocked

Moving onto the overclocked tests and again the i5 6600k is right out in front with a 9fps increase to the minimum and a 10fps increase to the average, the FX-8370 also saw gains from overclocking with a 7fps increase to the minimum and an 8fps increase to the average, meanwhile the i7 6700k saw some gains but still lagged behind it’s little brother.

Metro: Last Light Redux

Metro LL Redux 1080p Stock Clocks

In Metro: Last Light the little i5 again pulls out in front posting a minimum of 26fps and an average of 58fps while the FX-8370 managed 17fps minimum and 54fps average and the i7 6700k recorded a minimum of 24fps and an average of 53fps.

Metro LL Redux 1080p Overclocked

Overclocking once again brought gains across the board with the i5 6600k gaining 9fps minimum going from 26fps to 35fps and gaining 1fps on the average, the FX-8370 increased it’s minimum fps by 3 going from 17fps to 20fps and it’s average received a healthy bump from 54fps to 63fps which was the highest out of the three and of course the i7 6700k gained 8fps on the minimum and the average increased by 5fps.

Middle Earth: Shadow of Mordor

Middle Earth Shadow of Mordor 1080p Stock Clocks

Moving onto Middle Earth: Shadow of Mordor and all three CPUs seemed to sit around the same fps mark.

Middle Earth Shadow of Mordor 1080p Overclocked

Once overclocked things didn’t change much for the i5 6600k but the FX-8370 raised its average up from 98fps to 102fps bringing it in line with the Intel CPUs but the surprise came from the i7 6700k which had a nice 17fps increase to its minimum fps bringing it up from 51fps to 68fps.

Thief

Thief 1080p Stock Clocks

With Thief the FX-8370 got pummeled, it recorded a 32fps minimum and a 56fps average which is a far cry from the i5 6600k and its 50fps minimum and 83fps average while the i7 6700k recorded very similar numbers to the i5 of 51fps minimum and 80fps average.

Thief 1080p OverclockedOverclocking increased the fps for all three processors with the 6600k gaining 7fps on both the minimum and average fps, the i7 6700k gained 2fps to its minimum and 4fps to it’s avg and while the FX-8370 gained 7fps on the minimum and 5fps on the average it wasn’t enough to catch up to the Intel chips.

Rise of the Tomb Raider

Rise of The Tomb Raider 1080p Stock Clocks

With Rise of the Tomb Raider the i5 6600k got a respectable 44fps minimum and 55fps average, the FX-8370 didn’t fair so well and only managed a 28fps minimum while the average of 52fps isn’t bad, the i7 6700k also put in a nice effort with 42fps minimum and 58fps average.

Rise of the Tomb Raider 1080p Overclocked

Overclocking didn’t seem to help these CPUs much as the i5 actually lost 1fps on the minimum but did gain 5fps average, the 6700k gained 3fps minimum and 1fps average and the FX-8370 saw a 4fps gain on the minimum bringing it above 30fps but it didn’t help it’s average with it actually going 1fps backwards.

The Witcher 3

The Witcher 3 1080p Stock Clocks

In The Witcher 3 all three CPUs performed well with the i5 and FX posting the same numbers and only the 6700k being ahead by 2fps in both minimum and average fps.

The Witcher 3 1080p Overclocked

Overclocking however changed that with the i5 6600k gained 4fps to its minimum and 6fps to its average and the 6700k gained 5fps to its minimum and 2fps to its average while the FX-8370 went a little backwards for minimum fps but did gain 1fps average.

Ashes of the Singularity (DX12)

Now with the results concerning Ashes of the Singularity there were some people who wanted to see some DX12 results but unfortunately I cannot record the minimum fps so these results only contain the average.

Ashes of the Singularity DX12 1080p Stock Clocks

In Ashes of the Singularity the i5 6600k and i7 6700k managed 57fps average and 58fps average respectively with the FX-8370 being a bit slower at 47fps average.

 

Ashes of the Singularity DX12 - Extreme Preset - 1080p

Overclocking improved the fps all round with the 6700k gaining 10fps while the 6600k gained 1fps and the 8370 increased its average by 2fps.

Congratulations, You’ve made it to the halfway point!

If you aren’t sick of numbers and graphs by now then please continue on reading as now we are getting into the 1440p testing 🙂

Grand Theft Auto V

GTA V 1440p Stock Clocks

In GTA V the increase in resolution helped all 3 CPUs with them recording higher minimums than they did at 1080p, individually the i5 6600k managed a minimum of 18fps and an average of 86fps, the FX-8370 scored a minimum of 9fps with and average of 68fps and the i7 6700k recorded an impressive 27fps minimum and an average of 85fps.

GTA V 1440p Overclocked

Overclocking brought gains for both the i5 and FX but the i7 more or less remained the same suggesting it was GPU bound even at stock, the 6600k had a 3fps increase to its minimum and a 1fps increase to its average while the 8370 went from 9fps to 14fps on the minimum and gained 7fps to its average.

Fallout 4

Fallout 4 1440p Stock Clocks

In Fallout 4 the i7 6700k is the clear winner here with its minimum fps being more than double that of the FX-8370 and also having the highest average fps of the three, the i5 6600k also put in a good showing with a 37fps minimum and a 82fps average while the 8370 trailed behind with a 27fps minimum and a 61fps average.

Fallout 4 1440p Overclocked

After the CPUs had been overclocked the i5 6600k gained the most with a 14fps increase to it’s minimum fps bringing it up from 37fps to 51fps, the FX-8370 gained 2fps on its minimum and 5fps on its average while the i7 6700k didn’t see a change on it’s minimum fps but did gain 1fps on its average.

Mad Max

Mad Max 1440p Stock Clocks

Mad Max appears to take advantage of the FX and i7’s higher thread count with them both outpacing the i5 6600k in both minimum and average fps.

Mad Max 1440p Overclocked

Overclocking seemed to have helped the FX-8370 more than its Intel rivals with the minimum fps staying the same but its average increasing by 3fps, meanwhile the i5 6600k also saw gains with a 5fps increase to it’s minimum fps and a 1fps increase to its average, the i7 6700k also saw a 4fps gain to its average fps but also lost 4fps to its minimum.

Crysis 3

Crysis 3 1440p Stock Clocks

In Crysis 3 both the i5 6600k and FX-8370 did quite well with the former posting a 35fps minimum and a 41fps average and the latter with a 32fps minimum and a 42fps average while the 6700k had a slightly higher average fps its minimum was a bit lower than both the FX and i5.

Crysis 3 1440p Overclocked

overclocking didn’t see to help much in the case of the i5 and FX with the i5 6600k not having any change on its minimum fps but gaining 2fps on its average, the FX-8370 also didn’t see an increase to it’s minimum fps but did see a 1fps gain to the average, the i7 6700k however gained 7fps to its minimum and it also posted the same 43fps average and the i5 and FX.

Battlefield 4

Battlefield 4 1440p Stock Clocks

There isn’t much discrepancy at all here with all 3 CPUs recorded the same average fps and only the i5 was slightly slower on the minimum with it posting a 48fps minimum compared to the i7 and FXs 50fps minimum.

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Battlefield 4 1440p Overclocked

Overclocking brought about some of the freakiest numbers I’ve recorded with all three CPUs gaining 3fps average bring them up to 85fps average with the FX-8370 gaining 15fps on its minimum, the i5 6600k gained 16fps minimum while the i7 6700k went up by 10fps minimum.

Star Wars: Battlefront

Star Wars Battlefront 1440p Stock Clocks

In Star Wars: Battlefront the i5 6600k was quite a bit below the FX and i7 for minimum fps but did manage a slightly higher average while the FX-8370 pushed out an impressive 85fps minimum and a 96fps average and the i7 6700k recorded a minimum of 82fps and an average of 96fps.

Star Wars Battlefront 1440p Overclocked

When overclocked the i5 6600k gained a nice 26fps increase posting a 87fps minimum and an average of 100fps even, the FX-8370 maintained its lead over its Intel rivals recording a 88fps minimum and a 105fps average while the 6700k didn’t seem to benefit from an overclock as much only raising its minimum to 84fps and the average went up to 99fps.

Dirt Rally

Dirt Rally 1440p Stock Clocks

Unlike at 1080p the gap isn’t as large here between AMD and Intel but it’s still Intel who come out on top with both the i5 6600k and i7 6700k posting the same minimum fps of 65 and the same average of 81 which is a little bit ahead of the FX-8370s 62fps minimum and 77fps average.

Dirt Rally 1440p Overclocked

Overclocking brought the most benefit to the 6700k here which it increasing its minimum fps by 5 and its average fps by 4, the i5 6600k saw a 2fps gain on its average but the minimum remained the same while the FX-8370 gained 2fps on its minimum and 3fps on its average bringing it up almost in line with the 6600k.

GRID: Autosport

GRID Autosport 1440p Stock Clocks

As we seen in the 1080p testing GRID: Autosport loves its single core performance and the FX-8370 just can’t keep up here with it posting a 67fps minimum and 83fps average compared to the 96fps minimum and 114fps average posted by the i5 6600k and the 95fps minimum and 113fps average recorded by the 6700k.

GRID Autosport 1440p Overclocked

Overclocking didn’t provide much of an increase for the Intel CPUs with the i5 gaining 4fps minimum and losing 4fps average, the i7 6700k gained 2fps on the average but lost 5fps on the average which is most likely some fluctuations between the benchmarks, the FX-8370 however only gained fps which was 7fps on the minimum and 5fps on the average.

Metro: Last Light Redux

Metro LL Redux 1440p Stock Clocks

Moving onto Metro: Last Light Redux, the i5 6600k provided a minimum of 22fps and an average of 38fps, the i7 6700k also recorded a 38fps average but was 1fps faster on the minimum and finally the FX-8370 posted a rather low minimum fps of 12 but did quite well on the average scoring 39.

Metro LL Redux 1440p Overclocked

Overclocking didn’t improve the average fps for any of the three CPUs which suggests that even at stock it was in fact GPU bound but it did however improve the minimums with the 6600k going up by 2fps and the 6700k going up by 1fps as well, meanwhile the 8370 gained 4fps bringing it up to 16fps minimum which is still a little short of the i5 and i7.

Middle Earth: Shadow of Mordor

Middle Earth Shadow of Mordor 1440p Stock Clocks

With Middle Earth: Shadow of Mordor there is no variation for the average fps but the minimum fps does vary a bit with the i5 6600k posting the highest minimum of 56fps, the i7 6700k managed 47fps minimum and the FX-8370 squeezed out 39fps minimum.

Middle Earth Shadow of Mordor 1440p Overclocked

After overclocking the CPUs there is still no change to the average fps but the minimums increased for both the FX and i7 with the former gaining 4fps and the latter gained a healthy 10fps but in the case of the i5 it lost 3fps on the average.

Thief

Thief 1440p Stock Clocks

As we seen in the 1080p testing Thief really does like its single core performance and it really does show here with the i5 6600k posting a minimum of 54fps and an average of 69fps while the i7 6700k was again lower than the i5 with a minimum fps of 48 and an average of 67fps but it was still higher than the FX-8370 which managed a minimum of 33fps and an average of 67fps.

Thief 1440p Overclocked

Once overclocked there wasn’t much gains on either of the Intel chips with the i5 6600k gaining 1fps average and the minimum staying the same, the i7 6700k increased its minimum and average fps by 1.
The FX-8370 however did see some gains with a 4fps increase on the minimum and average but again not enough to catch the newer Intel CPUs.

Rise of the Tomb Raider

Rise of the Tomb Raider 1440p Stock Clocks

In Rise of the Tomb Raider we are seeing the same pattern as we did at 1080p with the i5 6600k posting the highest minimum fps but the i7 6700k having the highest average and the FX-8370 trailing behind.

Rise of the Tomb Raider 1440p Overclocked

However once the CPUs have been overclocked the FX-8370 ends up leading albeit not by much with it posting a 33fps minimum and 44fps average, the i7-6700k is next with a 32fps minimum and 44fps average and last but not least in this case is the i5 6600k with a 31fps minimum and 43fps average.

The Witcher 3

The Witcher 3 1440p Stock Clocks

In The Witcher 3 the results are close together with both the i5 6600k and FX-8370 posting the same minimum fps and the i7 6700k only beating it out by 1fps and with the averages both Intel chips are the same with 48fps and the FX-8370 is a little under at 45fps.

The Witcher 3 1440p Overclocked

Overclocking the CPUs spread the results out a bit with the 6600k gaining a huge 20fps minimum and 15fps average, the 6700k gained an equally nice 19fps on the minimum and 12fps on the average while the 8370 gained 6fps minimum and 13fps average.

Ashes of the Singularity (DX12)

As before with Ashes of the Singularity unfortunately I cannot record the minimum fps so these results only contain the average fps.

Ashes of the Singularity DX12 1440p Stock Clocks

The i5 6600k posted an average fps of 52 which was the same for the i7 6700k while the FX-8370 recorded an average of 45fps.

Ashes of the Singularity DX12 1440p Overclocked

Now this was interesting, at 1080p the i7 6700k had a large lead over the i5 and FX once overclocked but at 1440p the i5 6600k was in fact 2fps faster than the i7 6700k  which posted a 51fps average and it was 4fps faster than the FX-8370 which managed a 49fps average.

Conclusion

Well there you have it folks, I’m sure you found some of these results as surprising as I did.

Let’s break this down a little and talk about each CPUs performance

For the FX-8370 it presents a good budget option considering its overclocking ability at higher resolutions or possibly paired with a lower end graphics card but at 1080p it isn’t quite up to scratch anymore and is easily outpaced in games that take advantage of Intels faster individual cores.

The i7 6700k was a bit interesting bag with it being very fast when Hyperthreading was utilized properly but it also hampered it a bit in other games so it’s hard to recommend purely for gaming based on these results.

For me the most impressive results came from the i5 6600k, the little quad core punched above its weight matching and even outpacing the more expensive i7 6700k in a few titles, it seemed to shine most when overclocked so that is something to take into consideration.

And that concludes it all, as before I hope you found this interesting and please if you have any questions put them in the comments below.

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