GeForce GTX 560 vs Radeon R9 270

Intro

Compare all of that to the Radeon R9 270, which has core speeds of 900 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs as well as 80 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 270		5943 points
GeForce GTX 560		3030 points
	Difference: 2913 (96%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the Radeon R9 270 will be 40% quicker than the GeForce GTX 560 overall, due to its higher bandwidth. (explain)

Radeon R9 270		179200 MB/sec
GeForce GTX 560		128128 MB/sec
	Difference: 51072 (40%)

Texel Rate

The Radeon R9 270 should be quite a bit (about 59%) better at AF than the GeForce GTX 560. (explain)

Radeon R9 270		72000 Mtexels/sec
GeForce GTX 560		45360 Mtexels/sec
	Difference: 26640 (59%)

Pixel Rate

The Radeon R9 270 will be a small bit (about 11%) more effective at anti-aliasing than the GeForce GTX 560, and able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 270		28800 Mpixels/sec
GeForce GTX 560		25920 Mpixels/sec
	Difference: 2880 (11%)

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 information (counted in megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 can be processed in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip 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 amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.