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NVIDIA GTX 760 Review

ccokeman    -   June 25, 2013
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NVIDIA GeForce GTX 760 Testing:

Testing of the NVIDIA GTX 760 will consist of running it and comparison cards through the OverclockersClub.com suite of games and synthetic benchmarks. This will test the performance against many popular competitors. Comparisons will be made to cards of a range of capabilities to show where each card falls on the performance ladder. The games used are some of today's newest and most popular titles, which should be able to provide an idea of how the cards perform relative to each other.

The system specifications will remain the same throughout the testing. No adjustments will be made to the respective control panels during the testing to approximate the performance the end user can expect with a stock driver installation. I will first test the cards at stock speeds, and then overclocked to see the effects of an increase in clock speed. The cards will be placed in order from highest to lowest performance in each graph to show where they fall by comparison. The NVIDIA comparison cards will be using the 320.14 drivers while AMD-based cards will be using the Catalyst 13.5 beta 2 drivers and latest CAP profile. The results generated in my testing reached by utilizing the latest FCAT tools to illustrate the true picture of the gaming experience. To do so will require a second PC setup to capture the data stream generated by the compared video cards.

 

Testing Setup:

FCAT Capture Setup:

 

Comparison Video Cards:

 

 

Overclocking:

  • NVIDIA GTX 760: 1215MHz, Memory 1652MHz

Overclocking a Kepler-based GPU has not changed much since the introduction of the architecture. Aftermarket utilities from MSI and EVGA are now available that fully support the 7 series GPUs, including the GTX 760 I am looking at today. The GTX 760 supports GPU Boost 2.0 and can deliver more spirited overclocking due to the new way clock speed management can be prioritized. With GPU Boost the boost speeds were managed against an adjustable power envelope. GPU Boost 2.0 complicates this a little bit by adding in a temperature envelope as one of the determining factors when setting boost clock speeds. You can prioritize one over the other but you will come closest to the power limit before the temperature limits are reached. At least with all of the cards I have looked at that support GPU Boost 2.0.

Getting the most out of the GTX 760 you will want to choose the utility of your choice but they will all give you roughly the same results. To reach the maximum speed on the core required increasing the voltage to the core by the maximum amount of 12mv, then raising the boost offset until the core failed during testing. The +100MHz offset gave a boost clock of 1215MHz in just about every game I tested and proved to be the point at which stability was reached after cycling down from +115MHz, which initially was stable but proved not to be so. Boosting the memory speeds was a bit easier as the memory kept scaling all the way up to 1652MHz (6610MHz QDR) with noting more than adjusting the memory offset. The final clock speeds of 1215MHz on the core and 1653MHz on the memory represent a bump of 182MHz or about 18% on the core and 152MHz or just over 10% on the GDDR5 memory. Free speed is always good but takes some trial and error to get there. With NVIDIA's partners delivering factory overclocked models I would expect the range of overclocks to improve!

 

Maximum Clock Speeds:

Testing for the maximum clock speed consisted of looping Unigine Heaven 4.0 for 30 minutes each to see where the clock speeds failed when pushed. If the clock speed adjustment failed, then the clock speeds and tests were rerun until they passed a full hour of testing.

 

 

  • Gaming Tests:
  1. Metro: Last Light
  2. Crysis 3
  3. Far Cry 3
  4. Battlefield 3
  5. Batman: Arkham City
  6. Unigine Heaven Benchmark 4.0
  7. 3DMark

 

  • Usage:

  1. Temperatures
  2. Power Consumption



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