GeForce 8800 GTS (G80) 640MB vs Radeon HD 5750 1GB

Intro

Compare those specs to the Radeon HD 5750 1GB, which features a core clock speed of 700 MHz and a GDDR5 memory frequency of 1150 MHz. It also makes use of a 128-bit bus, and makes use of a 40 nm design. It is comprised of 720(144x5) SPUs, 36 TAUs, and 16 ROPs.

Fallout 3

Settings:	Very High Quality
AA:	8x
AF:	16x
Resolution:	1920x1200
Test Machine:	Tom's Hardware Test Machine (Source)

Radeon HD 5750 1GB		47 FPS
GeForce 8800 GTS (G80) 640MB		14 FPS
	Difference: 33 FPS (236%)

Fallout 3

Settings:	Very High Quality
AA:	4x
AF:	8x
Resolution:	1680x1050
Test Machine:	Tom's Hardware Charts Test Rig (Source)

Radeon HD 5750 1GB		60 FPS
GeForce 8800 GTS (G80) 640MB		38 FPS
	Difference: 22 FPS (58%)

Left4Dead

Settings:	Very High Quality
AA:	8x
AF:	16x
Resolution:	1920x1200
Test Machine:	Tom's Hardware Test Machine (Source)

Radeon HD 5750 1GB		57 FPS
GeForce 8800 GTS (G80) 640MB		32 FPS
	Difference: 25 FPS (78%)

Left4Dead

Settings:	Very High Quality
AA:	4x
AF:	8x
Resolution:	1920x1200
Test Machine:	Tom's Hardware Charts Test Rig (Source)

Radeon HD 5750 1GB		59 FPS
GeForce 8800 GTS (G80) 640MB		38 FPS
	Difference: 21 FPS (55%)

Tom Clancy's Endwar

Settings:	High Quality
AA:	4x
AF:	8x
Resolution:	1920x1200
Test Machine:	Tom's Hardware Test Machine (Source)

Radeon HD 5750 1GB		25 FPS
GeForce 8800 GTS (G80) 640MB		14 FPS
	Difference: 11 FPS (79%)

Tom Clancy's H.A.W.X

Settings:	High Quality
AA:	4x
AF:	8x
Resolution:	1680x1050
Test Machine:	Tom's Hardware Charts Test Rig (Source)

GeForce 8800 GTS (G80) 640MB		30 FPS
Radeon HD 5750 1GB		30 FPS
	Difference: 0 FPS (0%)

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Radeon HD 5750 1GB wins

(Based entirely on the benchmarks listed above)

When combining all game benchmark scores on this page together, the Radeon HD 5750 1GB wins overall, by 134 FPS. Please note that we do not have the results of every benchmark ever done for these cards, so the results may differ wildly in different games.

Radeon HD 5750 1GB		338 FPS
GeForce 8800 GTS (G80) 640MB		204 FPS
	Difference: 134 FPS (66%)

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce 8800 GTS (G80) 640MB		143 Watts
	Difference: 57 Watts (66%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5750 1GB should theoretically be a small bit better than the GeForce 8800 GTS (G80) 640MB overall. (explain)

Radeon HD 5750 1GB		73600 MB/sec
GeForce 8800 GTS (G80) 640MB		63360 MB/sec
	Difference: 10240 (16%)

Texel Rate

The Radeon HD 5750 1GB is a little bit (more or less 2%) more effective at texture filtering than the GeForce 8800 GTS (G80) 640MB. (explain)

Radeon HD 5750 1GB		25200 Mtexels/sec
GeForce 8800 GTS (G80) 640MB		24624 Mtexels/sec
	Difference: 576 (2%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 5750 1GB is superior to the GeForce 8800 GTS (G80) 640MB, but it probably won't make a huge difference. (explain)

Radeon HD 5750 1GB		11200 Mpixels/sec
GeForce 8800 GTS (G80) 640MB		10260 Mpixels/sec
	Difference: 940 (9%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.