GeForce GTX Titan Black vs Radeon R9 M295X

Intro

Compare that to the Radeon R9 M295X, which features a clock frequency of 750 MHz and a GDDR5 memory frequency of 1375 MHz. It also features a 256-bit bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 125 Watts (100%)

Memory Bandwidth

Theoretically, the GeForce GTX Titan Black should perform a lot faster than the Radeon R9 M295X in general. (explain)

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

Texel Rate

The GeForce GTX Titan Black will be much (about 122%) faster with regards to AF than the Radeon R9 M295X. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Radeon R9 M295X		96000 Mtexels/sec
	Difference: 117360 (122%)

Pixel Rate

The GeForce GTX Titan Black will be a lot (about 78%) faster with regards to full screen anti-aliasing than the Radeon R9 M295X, and also able to handle higher screen resolutions better. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Radeon R9 M295X		24000 Mpixels/sec
	Difference: 18672 (78%)

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 largest amount of information (counted in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units of the card 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its 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 core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.