GeForce 8800 GT 512MB vs Radeon HD 6570 (OEM) 2GB

Intro

Compare all that to the Radeon HD 6570 (OEM) 2GB, which features core clock speeds of 650 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 480 SPUs as well as 24 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB		50 Watts
GeForce 8800 GT 512MB		105 Watts
	Difference: 55 Watts (110%)

Memory Bandwidth

Theoretically, the Radeon HD 6570 (OEM) 2GB should be just a bit faster than the GeForce 8800 GT 512MB in general. (explain)

Radeon HD 6570 (OEM) 2GB		64000 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 6400 (11%)

Texel Rate

The GeForce 8800 GT 512MB is a lot (approximately 115%) better at AF than the Radeon HD 6570 (OEM) 2GB. (explain)

GeForce 8800 GT 512MB		33600 Mtexels/sec
Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
	Difference: 18000 (115%)

Pixel Rate

The GeForce 8800 GT 512MB is quite a bit (about 85%) faster with regards to full screen anti-aliasing than the Radeon HD 6570 (OEM) 2GB, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce 8800 GT 512MB		9600 Mpixels/sec
Radeon HD 6570 (OEM) 2GB		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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.