GeForce GTX 470 vs Radeon HD 5670

Intro

Compare those specs to the Radeon HD 5670, which comes with a core clock frequency of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It is comprised of 400(80x5) SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

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

The GeForce GTX 470, in theory, should perform much faster than the Radeon HD 5670 overall. (explain)

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

Texel Rate

The GeForce GTX 470 will be a lot (more or less 119%) faster with regards to 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 should be much (approximately 292%) faster with regards to AA than the Radeon HD 5670, and will be capable of handling higher 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 largest amount of data (measured in megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics 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 number of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.