GeForce GTX 570 vs Radeon HD 5770

Intro

Compare those specs to the Radeon HD 5770, which comes with core speeds of 850 MHz on the GPU, and 1200 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770		108 Watts
GeForce GTX 570		219 Watts
	Difference: 111 Watts (103%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 570 should theoretically be a lot superior to the Radeon HD 5770 in general. (explain)

GeForce GTX 570		152000 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 75200 (98%)

Texel Rate

The GeForce GTX 570 is a lot (about 29%) better at anisotropic filtering than the Radeon HD 5770. (explain)

GeForce GTX 570		43920 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 9920 (29%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 570 is the winner, by far. (explain)

GeForce GTX 570		29280 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 15680 (115%)

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 (counted in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, 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 number of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.