GeForce GTX 295 vs Radeon HD 7750

Intro

Compare those specs to the Radeon HD 7750, which features 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 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
GeForce GTX 295		289 Watts
	Difference: 234 Watts (425%)

Memory Bandwidth

Performance-wise, the GeForce GTX 295 should theoretically be a lot superior to the Radeon HD 7750 overall. (explain)

GeForce GTX 295		223776 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 151776 (211%)

Texel Rate

The GeForce GTX 295 should be much (approximately 260%) better at texture filtering than the Radeon HD 7750. (explain)

GeForce GTX 295		92160 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 66560 (260%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 295 is the winner, by far. (explain)

GeForce GTX 295		32256 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 19456 (152%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.