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Intel Core i5-10400 6 Core, $180 CPU Benchmarks Leak Out, Faster Than Its Predecessor With Slightly Higher Power Consumption & Temps

May 3, 2020
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The first preview of the Intel Core i5-10400 6 Core, Comet Lake-S, Desktop CPU has been posted by TecLab. The Chinese review channel over at Bilibili (via Momomo_US) covers the performance benchmarks of the chip and compares it against its predecessor and also an 8 core, 9th Generation Core i7 CPU.

Intel Core i5-10400 6 Core, 65W, $180 US CPU Benchmarked - Faster Than Its Predecessors In All Possible Ways With Under 90W Power Consumption at Full Load

The Intel Core i5-10400 is a 6 core and 12 thread processor which replaces the Core i5-9400 which had 6 cores and 6 threads. Intel didn't offer SMT on various 9th Generation processors but due to increased pressure from the competition, they have decided to offer SMT on all 10th Gen CPUs. In terms of specifications, the Core i5-10400 is a 65W chip and doesn't feature overclocking support.

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Intel's Core i5-10400 features a base clock of 2.9 GHz and a single-core boost frequency of 4.3 GHz. The chip also features an all-core boost frequency of 4.0 GHz. There's 12 MB of cache on the chip & the pricing is set at $182 US. Now the review embargo for all 10th Generation CPUs is supposed to be published on 20th May but the reviewer decided to post his review anyways with a much more detailed version going out in a few days.

The chip is compared to the Intel Core i5-9400F 6 core and Core i7-9700F 8 core processors. Both of these chips have no SMT support. The Core i5-9400F operates at 2.90 GHz base and 4.10 GHz boost while the Core i7-9700F operates at 3.00 GHz base and 4.70 GHz boost. Only the i7-9700F has a slight edge over the Core i5-10400 due to its higher number of cores and boost clocks. The benchmarks were carried out on the respective Z490/Z390 platforms. Both platforms ran DDR4 DIMMs at the platform's stock supported speeds of DDR4-2933 and DDR4-2666 MHz, respectively.

Intel Core i5-10400 CPU Specifications

CPU NameCores/ThreadsBase ClockBoost Clock (Single-Core)Boost Clock (All-Core)CacheTDPPrice
Intel Core i5-104006/122.90 GHz4.30 GHz4.00 GHz12 MB65W$182 US
Intel Core i7-9700F8/83.00 GHz4.70 GHz4.40 GHz12 MB65W$310 US
Intel Core i5-9400F6/62.90 GHz4.10 GHz3.90 GHz9 MB65W$157 US

Before moving over to the benchmarks, the reviewer also highlighted some of the key differences in the 10th Gen and 9th Gen CPU packages. The Core i5-10400 has a more streamlined electrical circuitry on the back compared to the 9th Gen along with a higher number of pins. The key socket is also inverted which means that you won't be able to put a 9th Gen CPU in a Z490 motherboard and vice versa.

The PCB thickness is also measured with the i5-10400 making use of a thinner PCB compared to the Core i7-9700F as Intel had officially detailed but at the same time, the PCB is just slightly thicker than the Core i5-9400F. The IHS on the Core i5-10400 is also denser 9th Gen CPUs.

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So coming to the benchmarks, we first have CPU specific tests. In PCMark 10, the Core i5-10400 manages to stay on par with the Core i7-9700F, offering much higher productivity performance but loosing out slightly in the content creation section. In SuperPI 1MB benchmark, the Core i5-10400 is 5% faster than the Core i5-9400F while being 8% slower than the Core i7-9700F. In wPrime 1024, the Core i5-10400 is 15% faster than the Core i5-9400F while the Core i5-9400F is 24% faster than the Core i5-10400.

In Cinebench R15, the lower single-core base clock means that the Core i7-9700F stays ahead of the Core i5-10400 but the chip is around 10% faster than its predecessor in the same benchmark. But in multi-threaded tests, the Core i5-10400 manages to close in the gap with the Core i7-9700F which despite its higher clock speeds is just 10% faster than the Core i5 model due to its lower thread count. The Core i5-10400 is 40% faster than the Core i5-9400F in Cinebench R15 multi-core tests. A similar performance difference is seen in the Cinebench R20 benchmark. In Winrar 5.9 64-bit benchmark, the Core i5-10400 manages to excel both 9th Gen parts, posting 42% better CPU performance over the Core i7-9700F and almost a 2x increase over its predecessor.

The last synthetic benchmark is 3DMark Firestrike where the Core i5-10400 manages to offer just about the same performance as the Core i7-9700F in the Physics test whereas the Core i5-9400F is not even close to it. In 3DMark Time Spy, the Core i5-10400 actually manages to outperform the i7 CPU.

For gaming, only two titles were tested, GTA V & Assassins Creed Odyssey. In both titles, the Core i5-10400 offered better performance at 1080p than the 9th Gen CPUs.

Finally, we have the power consumption and thermal tests for the Core i5 chip. For measuring power consumption, the AIDA64 FPU stress test was used in which the Core i5-10400 reported an idle power consumption of 10W and maximum power consumption of 85.91W. While the chip features a lower idle wattage than its predecessor, the max power consumption is around 8-9W higher which isn't a huge gain considering you get twice the threads and much higher clock speeds. The Core i7-9700F is about 2x the i5-10400 in max power consumption.

Intel Core i5-10400 CPU Benchmarks

CPU NameIntel Core i5-9400FIntel Core i7-9700FIntel Core i5-10400
Cinebench R15 (Single)172199186
Cinebench R15 (Multi)96914961351
Cinebench R20 (Multi)238536343215
Winrar 64-bit96721341719080
SuperPI 1MB9.0047.8938.586
wPrime 32M26.32925.41127.661
wPrime 1024M146.93105.928118.185
3DMark Time Spy (CPU)539169907490
3DMark Firestrike (CPU)123881815518049
PCMark 10 Overall606967676465
GTA 5 (AVG FPS Maxed Out)122128129
Assassins Creed Odyssey (AVG FPS 1080p)636567
GTA 5 (AVG FPS 1080p MSAAx2)169.85177.71175.16
Power Consumption (Idle)14W12W10W
Power Consumption (Full Load)77.88W145.83W85.91W
Thermals (Idle)28.3C28.6C26.6C
Thermals (Load)57.3C70.0C79.75C

The same is the situation with thermals where the Core i5-10400 is around 13C hotter than the Core i5-9400F at 70C (max). The Core i7-9700F is the hottest of the three chips at 80C. Overall, the added performance over its predecessor and coming close to the 8 core, Core i7-9700 which retails at a much higher price is very impressive for the $180 US Core i5 chip. The reviewer mentions that the Core i5-10400 is a good competitor versus the AMD Ryzen 5 3600 and he will publish his results comparing both the Core i5-10400 and AMD Ryzen 5 3600 very soon.

Products mentioned in this post

Ryzen 5 3600
Ryzen 5 3600
USD 208.99

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