GeForce 8600 GT 1GB DDR2 vs Radeon HD 7750

Intro

Compare those specifications to the Radeon HD 7750, which features a clock speed of 800 MHz and a GDDR5 memory frequency of 1125 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is comprised 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 should be much faster than the GeForce 8600 GT 1GB DDR2 in general. (explain)

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

Texel Rate

The Radeon HD 7750 will be quite a bit (more or less 196%) better at texture 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 should be a lot (more or less 196%) more effective at full screen anti-aliasing than the GeForce 8600 GT 1GB DDR2, and able to handle higher screen 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 information (counted in MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.