GeForce GTX 560 Ti 448 vs Radeon R9 M290X

Intro

Compare those specs to the Radeon R9 M290X, which features a clock frequency of 850 MHz and a GDDR5 memory speed of 1200 MHz. It also features a 256-bit bus, and uses a 28 nm design. It is made up of 1280 SPUs, 80 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X		100 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 110 Watts (110%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M290X should in theory be just a bit better than the GeForce GTX 560 Ti 448 in general. (explain)

Radeon R9 M290X		153600 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 9600 (7%)

Texel Rate

The Radeon R9 M290X is quite a bit (more or less 66%) more effective at anisotropic filtering than the GeForce GTX 560 Ti 448. (explain)

Radeon R9 M290X		68000 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 27008 (66%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 560 Ti 448 is superior to the Radeon R9 M290X, though only just barely. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon R9 M290X		27200 Mpixels/sec
	Difference: 2080 (8%)

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 information (in units of MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units by the core 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 in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also 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, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.