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Review: BFG's NVIDIA GeForce GTX 295 - the champ is back!

by Parm Mann on 8 January 2009, 14:00 4.05

Tags: GeForce GTX 295, BFG GeForce GTX 295 (186.18), NVIDIA (NASDAQ:NVDA), BFG Technologies, PC

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Temps, overclocking, power-draw

We perform our testing on an open test-bed with a 120mm fan simulating case airflow.

Graphics cards BFG GeForce GTX 295
1,792MB
Inno3D GeForce GTX 280
1,024MB
Inno3D GeForce GTX 260 OC
896MB
Sapphire Radeon HD 4870 X2
2,048MB
Sapphire Radeon HD 4850 X2
2,048MB
Ambient temperature 20.5°C 21.5°C 19.7°C 24°C
22°C
Idle temperature 47°C 47°C 47°C 73°C
42.5°C
Load temperature 72°C 74°C 70°C 95°C 62.5°C
Ambient-to-load delta 51.5°C 52.5°C 50.3°C 71°C 41°C

 

What a difference a die-shrink can make. The 55nm GeForce GTX 295 is significantly cooler under load than a 2GB Radeon HD 4870 X2. Better still, it's a touch cooler than a single-GPU GeForce GTX 280, that new heatsink-and-fan solution is clearly doing the trick.

Power-draw

Graphics cards BFG GeForce GTX 295
1,792MB
BFG GeForce GTX 280 OC Sapphire Radeon HD 4870 X2
2,048MB
Sapphire Radeon HD 4850 X2
2,048MB
Idle draw 133W 107W 149W
138W
Load draw 307W 260W 366W 275W

Overclocking

As mentioned earlier, NVIDIA chose not to bump up the frequencies of the dual-GPU GeForce GTX 295, opting instead to raise the shader-count to GTX 280 levels. Given the efficiency attained from a 55nm shrink, our temperature readings hint at ample overclocking headroom.

With no additional cooling, we managed to raise the default frequencies of 576MHz, 1,242MHz and 1,998MHz - for core, shader and memory, respectively - to a very decent 684MHz, 1,474MHz and 2,400MHz. By doing so, the average framerate at 1,920x1,200 in Enemy Territory: Quake Wars rose from 127.43fps to 131.30fps.

We're certain to see overclocked parts from NVIDIA's various partners in the near future.