GeForce GTX 570 vs Radeon R9 M270X

Intro

Compare that to the Radeon R9 M270X, which comes with GPU clock speed of 725 MHz, and 2048 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 570 should theoretically be a lot better than the Radeon R9 M270X overall. (explain)

GeForce GTX 570		152000 MB/sec
Radeon R9 M270X		72000 MB/sec
	Difference: 80000 (111%)

Texel Rate

The GeForce GTX 570 will be quite a bit (more or less 51%) faster with regards to texture filtering than the Radeon R9 M270X. (explain)

GeForce GTX 570		43920 Mtexels/sec
Radeon R9 M270X		29000 Mtexels/sec
	Difference: 14920 (51%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 570 is a better choice, and very much so. (explain)

GeForce GTX 570		29280 Mpixels/sec
Radeon R9 M270X		11600 Mpixels/sec
	Difference: 17680 (152%)

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 maximum amount of information (counted in megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, 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 that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core 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 fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.