Nvidia Titan X vs Radeon R9 295X2

Intro

Compare those specs to the Radeon R9 295X2, which comes with clock speeds of 1018 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2816 SPUs along with 176 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Nvidia Titan X		250 Watts
Radeon R9 295X2		500 Watts
	Difference: 250 Watts (100%)

Memory Bandwidth

In theory, the Radeon R9 295X2 should be 30% quicker than the Nvidia Titan X overall, due to its greater bandwidth. (explain)

Radeon R9 295X2		640000 MB/sec
Nvidia Titan X		491520 MB/sec
	Difference: 148480 (30%)

Texel Rate

The Radeon R9 295X2 will be a little bit (more or less 13%) more effective at texture filtering than the Nvidia Titan X. (explain)

Radeon R9 295X2		358336 Mtexels/sec
Nvidia Titan X		317408 Mtexels/sec
	Difference: 40928 (13%)

Pixel Rate

The Nvidia Titan X should be a small bit (approximately 4%) faster with regards to FSAA than the Radeon R9 295X2, and should be able to handle higher screen resolutions without losing too much performance. (explain)

Nvidia Titan X		136032 Mpixels/sec
Radeon R9 295X2		130304 Mpixels/sec
	Difference: 5728 (4%)

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: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core 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 bandwidth is, the lower the potential to get to the maximum fill rate.