GeForce GTX 570 vs Radeon HD 5670

Intro

Compare all that to the Radeon HD 5670, which has a clock speed of 775 MHz and a GDDR5 memory speed 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 570		219 Watts
	Difference: 158 Watts (259%)

Memory Bandwidth

The GeForce GTX 570 should in theory perform quite a bit faster than the Radeon HD 5670 overall. (explain)

GeForce GTX 570		152000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 88000 (138%)

Texel Rate

The GeForce GTX 570 should be quite a bit (about 183%) more effective at texture filtering than the Radeon HD 5670. (explain)

GeForce GTX 570		43920 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 28420 (183%)

Pixel Rate

The GeForce GTX 570 is a lot (about 372%) faster with regards to AA than the Radeon HD 5670, and also will be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 570		29280 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 23080 (372%)

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 data (in units of MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.