GeForce GTX 285 2GB vs Radeon HD 6670 (OEM) 1GB

Intro

Compare all of that to the Radeon HD 6670 (OEM) 1GB, which comes with core clock speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. 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 6670 (OEM) 1GB		63 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 141 Watts (224%)

Memory Bandwidth

Performance-wise, the GeForce GTX 285 2GB should theoretically be a lot superior to the Radeon HD 6670 (OEM) 1GB in general. (explain)

GeForce GTX 285 2GB		158976 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 94976 (148%)

Texel Rate

The GeForce GTX 285 2GB should be a lot (more or less 170%) more effective at texture filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 32640 (170%)

Pixel Rate

The GeForce GTX 285 2GB is much (approximately 224%) faster with regards to AA than the Radeon HD 6670 (OEM) 1GB, and will be capable of handling higher screen resolutions better. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 14336 (224%)

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 data (in units of megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.