Asus 580GTX Voltage Tweak Edition Review

Ali Tayyab
Jul 3, 2011

Based on the GF110 revision of Fermi architecture, the GTX 580 represents the most powerful single GPU video card from Nvidia. Asus has taken the reference model and added the ability to tweak its core voltage (via its own propriety Smart Doctor Software). The clocks out of the box are roughly those of the reference design (782 MHz for core as compared to 772 for reference, memory runs at stock speed). WCCFTech has already had a detailed look at the 580 in its review of MSI’s N580 GTX Today we’ll be looking at the performance benefits offered by the Asus card.


The video card comes in a standard cardboard box with the usual Asus theme for 5 series Nvidia cards. The Voltage Tweak logo differentiates this from the stock design. Inside the card lies in a black box, surrounded by black protective foam.

A small cardboard box contains the usual accessories including power cable, software disk and DVI to VGA converter.

The video card itself is a mirror image of a reference design. Asus uses the stock cooler on this model. The ports and connectors come with protective covers, a nice (though a cosmetic) touch!

Stock Core (V) Stock Memory (QDR) OC Core (V) OC Memory (QDR) Gains
782 MHz (1.037V) 1.0 GHz (4.0 GHz) 936 MHz (1.138V) 1.08 GHz (4.32 GHz) Core: 19.6% Mem: 8%

By using Asus’ own smart doctor over clocking tool, we were able to crank up the core clock all the way to 936 MHz, while the memory reached speeds of 1.08 GHz (or QDR of 4.318 GHz). Not too shabby.

The GPU-z screen shot shows the default specs of the card


Processor(s) Core i7 2600K @ 4.5 GHz
Board(s) Asus P8P67
Memory G.Skill Sniper DDR3-1600 (1.25V) 2X4GB
Video See Below


Resolution(s) 1920 X 1200 (2.3 MP)
1680 X 1050 (1.7 MP)
Storage Seagate ST31000528AS
Power Supply Corsair HX620
CPU Cooler Thermal Right HR-02 (Passive)
Operating System Windows 7 x64 Ultimate


Games Settings
Alien Vs Predator DX11 with 4x AA
Metro 2033 DX 11 (Very HQ) with Analytical AA and 16AF
Crysis DX 10 (Very HQ) with 4x AA
Stalker CoP DX 11(Ultra HQ) with 4x AA

At WCCFTech it is our philosophy to present results that are transparent and vendor neutral. We tend to avoid games that heavily favor one video card manufacturer over the other. Thus you will not see the likes of Dragon Age II, or Tom Clancy’s HAWX-2 in the list. We also abhor the use of synthetic benchmarks as, in our opinion, they add little value to a graphics card purchase.

For all games inbuilt benchmarking tools were used. The average score of 3 runs was posted using the latest drivers (beta builds where applicable; drivers latest as of 20th June 2011)

2.3 MP (in the charts) indicates a resolution of 1920×1200, while 1.7 MP denotes a resolution of 1680×1050.
We over-clocked the processor to 4.5GHz to make sure it does not bottle neck graphic cards performance.

GPU’s Tested

GPU Chart Legend
Asus GTX 580 Voltage Tweak Edition GTX580VT
HIS 6950 – 2GB AMD6950
MSI 6970 – 2GB AMD6970

Alien vs Predator

For a 19% increase in core clock we are looking at an average of about 15% increase in performance.

Metro 2033

The performance improvements are nearly the same as in Alien vs Predator (around 14% average)


Editor’s Note: Our review just missed the release of Crysis 2 update which enables DX 11.0 features as well provide higher quality textures, we’ll replace Crysis with Crysis 2 in future reviews

We are looking at a consistent ~15% performance benefit in Crysis.

Stalker – Call of Pripyat

The results parallel those seen before; a 15% increase is seen here as well.


The ambient air temperature as measured outside test environment (Cooler Master CM 690 II with a 71CFM exhaust as the only fan in the system) was 21C. We used 3DMark Vantage to assess maximal temperatures attained which were measured using GPU-Z. Fan speed was left at automatic control for all cards.

The Over-clocked card is almost ready to boil water, but it stays within spec.


The Asus Voltage tweak edition is able to provide about a 15% performance improvement for 19% overclock of core frequency. Had Asus used a non-reference cooler the performance gains could have been better, but then the price would have gone up as well. Asus offers its Matrix series of video processors which carry a higher price premium but also offer better performance. Whether this performance gain is enough to justify a small price premium that needs to be paid over a stock reference card (which can also be voltage un-locked and over-clocked; though would void warranty) is dependent on the end user. At WCCFTech we think the performance gains (15%) outweigh price premium (~5%).

Asus GTX580 Voltage Tweak Edition GTX580VT
HIS 6950 -2GB AMD6950
MSI 6970 -2GB AMD6970

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