eVGA 7600GT CO: A Step Up - Test Setup and Benchmarks

Article Index
eVGA 7600GT CO: A Step Up
Card Specs and Close Look
Test Setup and Benchmarks
Game Benchmarks and Conclusion

Test Setup:

In this review, we're once again using our Intel Dual Core test setup.  The specs and information are listed below:

Testing Info:

We ran our Intel 805 Dual Core CPU at stock speed (2.66GHz) throughout this review as a 7600GT will likely be paired up with a mainstream rig and not an FX-62.  We ran a series of synthetic benchmarks as well as game benchmarks to compare the two graphics cards.  The system specs never changed when testing these two cards.  The benchmark results are a direct comparison of the 6600GT and the 7600GT.

Overclocking:

eVGA has already overclocked this card out of the box and they clock the memory 100MHz above it's rated spec, so we really didn't have much hopes for overclocking.  To get things started we installed Coolbits 2.0 and let the card auto detect it's optimal overclock.  According to the Auto Detect feature, the card would clock up to 625MHz Core and 1700MHz Memory!  Before we proceeded further we ran a benchmark to confirm the increase and soon crashed our system.  Although the memory and GPU core would both run faster according to CoolBits, they wouldn't run games and benchmarks clocked up this high.  In the end our system was rock stable at 605MHz GPU core and 1650MHz Memory.  This equates to a mere 4% Core overclock, but surprisingly we manage a 10% memory overclock.  The memory speed impresses me as the memory is rated at 1400MHz.  Our overclock is actually 17% above the memory's rated speed.

Synthetic Tests:

For these synthetic tests, we ran the infamous and often controversial 3DMark benchmarks.  We ran 3DMark 2003, 3DMark05 and the HDR enabled 3DMark06.  These scores can be compared to your own, but should really be merely compared with each other to get an idea of the performance improvement gained from the 7600GT.

Click For a Larger Chart
Click For a Larger Chart

 

I was blown away with the performance increase from the 7600GT.  I had expected a couple thousand more points, but not a 53% improvement.  One of these 7600GT's would almost keep up to a 6600GT SLI setup in 3DMark 2003.

Next we fired up 3DMark05, which humbles our aging 6600GT even more.

Click For A Larger Chart
Click For a Larger Chart

In 3DMark05 the performance difference is even larger.  Mind you the 6600GT still scores okay, and plays games quite well, but the 7600GT dominates the 6600GT.  eVGA's 7600GT CO runs this benchmark 69% faster than the 6600GT and when the 7600GT is overclocked, it manages a 77% performance improvement over the 6600GT.  Not bad for and extra $50 card.

Now we come to the HDR enabled 3DMark06.  This benchmark runs at 1280x1024 instead of 1024x768 as the other previous benchmarks.  This stresses the fill rate and memory bus more than at lower resolutions.

Click For A Larger Chart
Click For a Larger Chart

With the higher resolution the 7600GT increases its lead over the 6600GT in 3DMark06.  At stock speeds it manages a little better than a 111% improvement.  Overclocking increases the difference an additional 10%.  Wow.

Now that we've got these synthetic tests out of the way, we're going to fire up a few games and see how they compare in the real world.