GeForce GTX 980 Ti vs Radeon R9 M295X

Intro

Compare all that to the Radeon R9 M295X, which comes with clock speeds of 750 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
GeForce GTX 980 Ti		250 Watts
	Difference: 125 Watts (100%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 980 Ti should theoretically be much superior to the Radeon R9 M295X in general. (explain)

GeForce GTX 980 Ti		336000 MB/sec
Radeon R9 M295X		176000 MB/sec
	Difference: 160000 (91%)

Texel Rate

The GeForce GTX 980 Ti should be a lot (more or less 83%) better at texture filtering than the Radeon R9 M295X. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
Radeon R9 M295X		96000 Mtexels/sec
	Difference: 80000 (83%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 980 Ti is superior to the Radeon R9 M295X, and very much so. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
Radeon R9 M295X		24000 Mpixels/sec
	Difference: 72000 (300%)

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.