GeForce 8800 GT 512MB vs Radeon HD 6670 (OEM) 1GB

Intro

The GeForce 8800 GT 512MB has a core clock frequency of 600 MHz and a GDDR3 memory speed of 900 MHz. It also features a 256-bit bus, and uses a 65 nm design. It is comprised of 112 SPUs, 56 TAUs, and 16 ROPs.

Compare those specifications to the Radeon HD 6670 (OEM) 1GB, which comes with GPU clock speed of 800 MHz, and 1024 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also features 480 Stream Processors, 24 Texture Address Units, and 8 ROPs.

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 6670 (OEM) 1GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce 8800 GT 512MB	Radeon HD 6670 (OEM) 1GB
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	800 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	63 watts
Shader Model	4.0	5.0
Bandwidth	57600 MB/sec	64000 MB/sec
Texel Rate	33600 Mtexels/sec	19200 Mtexels/sec
Pixel Rate	9600 Mpixels/sec	6400 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.