GeForce GTX 260 216SP 55 nm vs Radeon HD 7750

Intro

Compare that to the Radeon HD 7750, which comes with GPU core speed of 800 MHz, and 1024 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is comprised of 512 Stream Processors, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
GeForce GTX 260 216SP 55 nm		171 Watts
	Difference: 116 Watts (211%)

Memory Bandwidth

The GeForce GTX 260 216SP 55 nm, in theory, should be much faster than the Radeon HD 7750 in general. (explain)

GeForce GTX 260 216SP 55 nm		111888 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 39888 (55%)

Texel Rate

The GeForce GTX 260 216SP 55 nm will be much (more or less 62%) more effective at AF than the Radeon HD 7750. (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 15872 (62%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 260 216SP 55 nm is the winner, by a large margin. (explain)

GeForce GTX 260 216SP 55 nm		16128 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 3328 (26%)

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 megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 texture map elements (texels) that can be applied per second. This number 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 graphics card will be at handling 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 write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to 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 ability to get to the maximum fill rate.