GeForce 8600 GT 512MB DDR2 vs Radeon HD 5750 1GB

Intro

Compare those specifications to the Radeon HD 5750 1GB, which has GPU core speed of 700 MHz, and 1024 MB of GDDR5 RAM running at 1150 MHz through a 128-bit bus. It also is comprised of 720(144x5) Stream Processors, 36 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2		47 Watts
Radeon HD 5750 1GB		86 Watts
	Difference: 39 Watts (83%)

Memory Bandwidth

The Radeon HD 5750 1GB should theoretically be much faster than the GeForce 8600 GT 512MB DDR2 overall. (explain)

Radeon HD 5750 1GB		73600 MB/sec
GeForce 8600 GT 512MB DDR2		12800 MB/sec
	Difference: 60800 (475%)

Texel Rate

The Radeon HD 5750 1GB should be much (more or less 192%) faster with regards to anisotropic filtering than the GeForce 8600 GT 512MB DDR2. (explain)

Radeon HD 5750 1GB		25200 Mtexels/sec
GeForce 8600 GT 512MB DDR2		8640 Mtexels/sec
	Difference: 16560 (192%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 5750 1GB is superior to the GeForce 8600 GT 512MB DDR2, by far. (explain)

Radeon HD 5750 1GB		11200 Mpixels/sec
GeForce 8600 GT 512MB DDR2		4320 Mpixels/sec
	Difference: 6880 (159%)

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 (in units of MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.