GeForce GTX 285 2GB vs Radeon HD 7750

Intro

Compare all that to the Radeon HD 7750, which comes with core clock speeds of 800 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 512 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 149 Watts (271%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 285 2GB is 121% faster than the Radeon HD 7750 in general, because of its higher bandwidth. (explain)

GeForce GTX 285 2GB		158976 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 86976 (121%)

Texel Rate

The GeForce GTX 285 2GB is a lot (approximately 103%) more effective at texture filtering than the Radeon HD 7750. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 26240 (103%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 285 2GB is superior to the Radeon HD 7750, and very much so. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 7936 (62%)

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 largest amount of information (measured in MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, 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 texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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