GeForce GTX 480 vs Radeon HD 5570

Intro

Compare all of that to the Radeon HD 5570, which features a clock speed of 650 MHz and a DDR3 memory speed of 900 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 400(80x5) SPUs, 20 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTX 480		250 Watts
	Difference: 207 Watts (481%)

Memory Bandwidth

The GeForce GTX 480, in theory, should perform quite a bit faster than the Radeon HD 5570 overall. (explain)

GeForce GTX 480		177408 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 148608 (516%)

Texel Rate

The GeForce GTX 480 is a lot (more or less 223%) better at anisotropic filtering than the Radeon HD 5570. (explain)

GeForce GTX 480		42000 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 29000 (223%)

Pixel Rate

The GeForce GTX 480 will be much (approximately 546%) better at anti-aliasing than the Radeon HD 5570, and also should be able to handle higher resolutions better. (explain)

GeForce GTX 480		33600 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 28400 (546%)

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: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics 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 most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. 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 bandwidth is, the lower the ability to get to the maximum fill rate.