GeForce GTX 780 Ti vs Radeon R9 M295X

Intro

Compare all of that to the Radeon R9 M295X, which comes with core speeds of 750 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 125 Watts (100%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 780 Ti should in theory be a lot better than the Radeon R9 M295X overall. (explain)

GeForce GTX 780 Ti		336000 MB/sec
Radeon R9 M295X		176000 MB/sec
	Difference: 160000 (91%)

Texel Rate

The GeForce GTX 780 Ti is a lot (approximately 119%) better at anisotropic filtering than the Radeon R9 M295X. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
Radeon R9 M295X		96000 Mtexels/sec
	Difference: 114000 (119%)

Pixel Rate

The GeForce GTX 780 Ti is a lot (about 75%) faster with regards to FSAA than the Radeon R9 M295X, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
Radeon R9 M295X		24000 Mpixels/sec
	Difference: 18000 (75%)

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 data (measured in MB per second) that can be transferred over 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 RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.