GeForce GTX 280 vs Radeon HD 7750

Intro

Compare that to the Radeon HD 7750, which has core clock speeds of 800 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 memory. It features 512 SPUs along with 32 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
GeForce GTX 280		236 Watts
	Difference: 181 Watts (329%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 280 should theoretically be a lot superior to the Radeon HD 7750 in general. (explain)

GeForce GTX 280		141696 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 69696 (97%)

Texel Rate

The GeForce GTX 280 will be much (about 88%) more effective at AF than the Radeon HD 7750. (explain)

GeForce GTX 280		48160 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 22560 (88%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 280 is the winner, and very much so. (explain)

GeForce GTX 280		19264 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 6464 (51%)

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: Memory bandwidth is the max amount of data (in units of MB per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.