GeForce 8600 GT 1GB DDR2 vs Radeon HD 7750

Intro

Compare all of that to the Radeon HD 7750, which comes with a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also features 512 Stream Processors, 32 Texture Address Units, and 16 ROPs.

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

The Radeon HD 7750, in theory, should be much faster than the GeForce 8600 GT 1GB DDR2 overall. (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 quite a bit (about 196%) faster with regards to AF 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 will be much (more or less 196%) more effective at full screen anti-aliasing than the GeForce 8600 GT 1GB DDR2, and also will be capable of handling higher resolutions without slowing down too much. (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 maximum amount of data (measured in MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.