OverclockingThe overclocking results listed in this section were achieved with the default fan and voltage settings as defined in the VGA BIOS. Please note that every sample overclocks differently, which is why our results here can only serve as a guideline for what you can expect from your card. On NVIDIA cards with boost, the values discussed here are base clock. Boost will further increase clocks.
Clocks listed here are base clocks; NVIDIA Boost will further increase clocks.
Maximum overclock of our sample is 1200 MHz GPU base clock (12% overclocking) and 1505 MHz memory (11% overclock).
GPU overclocking works well, but is constrained by NVIDIA's power limiter. Once you exceed a certain clock frequency, the card will drop down to base clock to avoid drawing too much power. While I can certainly accept this behavioral pattern with other GTX 750 Tis since they are limited to the 75 W of a single PCI-Express slot, I find it unacceptable for the ASUS GTX 750 Ti OC because it comes with an additional 6-pin power connector. It seems as though ASUS did not configure their BIOS correctly around utilizing the 6-pin connector, instead hoping people will buy their card because it is capable of drawing more power for a potentially better overclock.
Memory doesn't overclock that much either, despite the fast that the Samsung chips we've seen on other GTX 750 Tis OC much better.
|Maximum Overclock Comparison|
|Max. GPU Clock||Max. Memory Clock||FPS|
|ASUS GTX 750 Ti OC||1200 MHz||1505 MHz||51.3 FPS|
|Palit GTX 750 Ti StormX Dual||1265 MHz||1640 MHz||54.8 FPS|
|NVIDIA GTX 750 Ti||1145 MHz||1675 MHz||51.1 FPS|
|MSI GTX 750 Ti Gaming||1210 MHz||1675 MHz||53.7 FPS|
differently based on random production variances. This table just serves to provide a list of typical
overclocks for similar cards, determined during TPU review.
Overclocked PerformanceUsing these clock frequencies, we ran a quick test of Battlefield 3 to evaluate the gains from overclocking.
Actual 3D performance gained from overclocking is 13.8%.