GeForce 8800 GTS (G80) 320MB vs Radeon HD 5750 512MB

Intro

Compare all that to the Radeon HD 5750 512MB, which uses a 40 nm design. AMD has set the core speed at 700 MHz. The GDDR5 memory works at a speed of 1150 MHz on this particular model. It features 720(144x5) SPUs along with 36 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce 8800 GTS (G80) 320MB		143 Watts
	Difference: 57 Watts (66%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5750 512MB will be 16% faster than the GeForce 8800 GTS (G80) 320MB overall, due to its greater bandwidth. (explain)

Radeon HD 5750 512MB		73600 MB/sec
GeForce 8800 GTS (G80) 320MB		63360 MB/sec
	Difference: 10240 (16%)

Texel Rate

The Radeon HD 5750 512MB is a small bit (approximately 2%) better at anisotropic filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

Radeon HD 5750 512MB		25200 Mtexels/sec
GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
	Difference: 576 (2%)

Pixel Rate

The Radeon HD 5750 512MB is a small bit (more or less 9%) faster with regards to anti-aliasing than the GeForce 8800 GTS (G80) 320MB, and should be able to handle higher resolutions more effectively. (explain)

Radeon HD 5750 512MB		11200 Mpixels/sec
GeForce 8800 GTS (G80) 320MB		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 maximum amount of data (measured in megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.