PowerColor R9 290X OC vs GTX 780 Ti – the overclocking gloves come off!
Performance summary charts & graphs
Following are two summary charts of 30 modern PC games and 4 synthetic benches. The highest settings are generally chosen and it is DX11 when there is a choice; DX10 is picked above DX9, and the settings are generally ultra or maxed unless specified on the chart. Specific settings are listed on the charts. The benches are run at 1920×1080 and 2560×1600.
The first column places the stock 1000/1250MHz R9 290X in Uber mode next to the voltage-unlocked 1150MHz/1450MHz results. The third column shows the performance of the stock GTX 780 Ti (1019MHz maximum Boost) compared with its overclocked results (+200MHz core/+400MHz memory) which allowed for a maximum Boost of 1208MHz.
We get typically good scaling with the GTX 780 Ti as there is no thermal throttling, especially with the fan running 100%. Some games do not scale well at 1920×1080 as Core i7-3770K at 4.5GHz is not fast enough, so we need to mostly focus on 2560×1600 results. On the other hand, we mostly see good scaling results for the R9 290X, but in some games there is very little increase from raising the clocks, and occasionally, we even see negative results. This is because even with the 290X fan maxed out at 100% in a cool room, it is not quite enough to keep the GPU below 94C, and throttling is evident.
In most cases, the overclocked GTX 780 Ti sits above the overclocked R9 290X just as the reference versions do. It will take more than an 1150MHz Hawaii core clock to beat a modestly overclocked GTX 780 Ti. Here is our “Big Picture” and more GPUs are featured as well as different modes and in-between overclocks for the R9 290X and for the GTX 780 Ti, its main competitor.
The charts give the rankings very clearly. The $579 PowerColor R9 290X OC goes head to head with the Titan, it generally beats the $499 GTX 780 and it loses to the $649 GTX 780 Ti. Maximum overclocking does not change the positioning, and the R9 290X maximum overclock is still throttled by a very loud 100% fan in a cool room. Let’s head to our conclusion.
What is the clock of the GTX780 OC? (not the Ti).
The offset was +150MHz core/+550MHz memory. Maximum Boost was 1162MHz
http://alienbabeltech.com/main/evgas-reference-gtx-780-meets-290x/all/1/
“Overclocking the EVGA GTX 780 is just as easy as overclocking the rest
of the GTX 700 series using PrecisionX. What is not too surprising is
that we were only able to overclock +25MHz past our maximum overclock of
the original reference GTX 780 we received from Nvidia a few months
ago. We managed +150MHz on the core and +550MHz on the memory to reach a
maximum Boost of 1162, well above Nvidia’s guaranteed Boost of 900MHz.”
Cheers.