GeForce 8800 GT 512MB vs Radeon HD 6570 (OEM) 1GB

Intro

Compare all that to the Radeon HD 6570 (OEM) 1GB, which has clock speeds of 650 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 RAM. It features 480 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB		50 Watts
GeForce 8800 GT 512MB		105 Watts
	Difference: 55 Watts (110%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 GT 512MB should be 100% quicker than the Radeon HD 6570 (OEM) 1GB in general, because of its higher bandwidth. (explain)

GeForce 8800 GT 512MB		57600 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 28800 (100%)

Texel Rate

The GeForce 8800 GT 512MB is much (approximately 115%) faster with regards to texture filtering than the Radeon HD 6570 (OEM) 1GB. (explain)

GeForce 8800 GT 512MB		33600 Mtexels/sec
Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
	Difference: 18000 (115%)

Pixel Rate

The GeForce 8800 GT 512MB should be quite a bit (more or less 85%) more effective at AA than the Radeon HD 6570 (OEM) 1GB, and will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce 8800 GT 512MB		9600 Mpixels/sec
Radeon HD 6570 (OEM) 1GB		5200 Mpixels/sec
	Difference: 4400 (85%)

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 moved past the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.