GeForce GTX 470 vs Radeon HD 5670

Intro

Compare all of that to the Radeon HD 5670, which comes with GPU core speed of 775 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is comprised of 400(80x5) SPUs, 20 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 470		215 Watts
	Difference: 154 Watts (252%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 470 should in theory be much better than the Radeon HD 5670 in general. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 69920 (109%)

Texel Rate

The GeForce GTX 470 should be much (approximately 119%) better at anisotropic filtering than the Radeon HD 5670. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 18492 (119%)

Pixel Rate

The GeForce GTX 470 is a lot (about 292%) faster with regards to AA than the Radeon HD 5670, and should be capable of handling higher screen resolutions better. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 18080 (292%)

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 max amount of information (counted in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the 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 higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number 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 card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels 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. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 get to the max fill rate.