GeForce 8600 GT 1GB DDR2 vs Radeon HD 7750

Intro

Compare those specs to the Radeon HD 7750, which comes with a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is made up of 512 SPUs, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB DDR2		47 Watts
Radeon HD 7750		55 Watts
	Difference: 8 Watts (17%)

Memory Bandwidth

In theory, the Radeon HD 7750 will be 463% quicker than the GeForce 8600 GT 1GB DDR2 overall, due to its higher data rate. (explain)

Radeon HD 7750		72000 MB/sec
GeForce 8600 GT 1GB DDR2		12800 MB/sec
	Difference: 59200 (463%)

Texel Rate

The Radeon HD 7750 is a lot (more or less 196%) better at anisotropic filtering than the GeForce 8600 GT 1GB DDR2. (explain)

Radeon HD 7750		25600 Mtexels/sec
GeForce 8600 GT 1GB DDR2		8640 Mtexels/sec
	Difference: 16960 (196%)

Pixel Rate

The Radeon HD 7750 is a lot (approximately 196%) better at anti-aliasing than the GeForce 8600 GT 1GB DDR2, and will be able to handle higher resolutions more effectively. (explain)

Radeon HD 7750		12800 Mpixels/sec
GeForce 8600 GT 1GB DDR2		4320 Mpixels/sec
	Difference: 8480 (196%)

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 (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.