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

Intro

The GeForce 8800 GT 512MB makes use of a 65 nm design. nVidia has clocked the core speed at 600 MHz. The GDDR3 memory runs at a speed of 900 MHz on this particular model. It features 112 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Compare that to the Radeon HD 6570 (OEM) 2GB, which features a core clock frequency of 650 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and makes use of a 40 nm design. It is made up of 480 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Price Comparison

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce 8800 GT 512MB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Radeon HD 6570 (OEM) 2GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce 8800 GT 512MB	Radeon HD 6570 (OEM) 2GB
Manufacturer	nVidia	ATi
Year	Oct 2007	February 2011
Code Name	G92	Turks
Fab Process	65 nm	40 nm
Bus	PCIe x16 2.0	PCIe 2.1 x16
Memory	512 MB	1024 MB
Core Speed	600 MHz	650 MHz
Shader Speed	1500 MHz	(N/A) MHz
Memory Speed	900 MHz	1000 MHz
Unified Shaders	112	480
Texture Mapping Units	56	24
Render Output Units	16	8
Bus Type	GDDR3	GDDR5
Bus Width	256-bit	128-bit
DirectX Version	DirectX 10	DirectX 11
OpenGL Version	OpenGL 3.0	OpenGL 4.1
Power (Max TDP)	105 watts	50 watts
Shader Model	4.0	5.0
Bandwidth	57600 MB/sec	64000 MB/sec
Texel Rate	33600 Mtexels/sec	15600 Mtexels/sec
Pixel Rate	9600 Mpixels/sec	5200 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number 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 quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.