GeForce 8600 GT 1GB GDDR3 vs Radeon HD 6670 (OEM)

Intro

Compare all of that to the Radeon HD 6670 (OEM), which has a GPU core clock speed of 800 MHz, and 512 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up of 480 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB GDDR3		47 Watts
Radeon HD 6670 (OEM)		63 Watts
	Difference: 16 Watts (34%)

Memory Bandwidth

In theory, the Radeon HD 6670 (OEM) should be 186% quicker than the GeForce 8600 GT 1GB GDDR3 in general, due to its higher data rate. (explain)

Radeon HD 6670 (OEM)		64000 MB/sec
GeForce 8600 GT 1GB GDDR3		22400 MB/sec
	Difference: 41600 (186%)

Texel Rate

The Radeon HD 6670 (OEM) is a lot (more or less 122%) faster with regards to AF than the GeForce 8600 GT 1GB GDDR3. (explain)

Radeon HD 6670 (OEM)		19200 Mtexels/sec
GeForce 8600 GT 1GB GDDR3		8640 Mtexels/sec
	Difference: 10560 (122%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 6670 (OEM) is superior to the GeForce 8600 GT 1GB GDDR3, and very much so. (explain)

Radeon HD 6670 (OEM)		6400 Mpixels/sec
GeForce 8600 GT 1GB GDDR3		4320 Mpixels/sec
	Difference: 2080 (48%)

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 (measured in MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, 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 maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.