GeForce GTX 295 vs Radeon R9 M280X

Intro

Compare all of that to the Radeon R9 M280X, which features a core clock frequency of 900 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It features 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X		75 Watts
GeForce GTX 295		289 Watts
	Difference: 214 Watts (285%)

Memory Bandwidth

The GeForce GTX 295 should theoretically be much faster than the Radeon R9 M280X in general. (explain)

GeForce GTX 295		223776 MB/sec
Radeon R9 M280X		88000 MB/sec
	Difference: 135776 (154%)

Texel Rate

The GeForce GTX 295 will be a lot (more or less 83%) more effective at texture filtering than the Radeon R9 M280X. (explain)

GeForce GTX 295		92160 Mtexels/sec
Radeon R9 M280X		50400 Mtexels/sec
	Difference: 41760 (83%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 295 is the winner, by far. (explain)

GeForce GTX 295		32256 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 17856 (124%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, the result should 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling 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 the graphics card can possibly record to the 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 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 also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.