GeForce GTX 970 vs Radeon R9 M295X

Intro

Compare that to the Radeon R9 M295X, which comes with GPU clock speed of 750 MHz, and 4096 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also features 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
GeForce GTX 970		145 Watts
	Difference: 20 Watts (16%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 970 will be 27% quicker than the Radeon R9 M295X overall, due to its higher data rate. (explain)

GeForce GTX 970		224000 MB/sec
Radeon R9 M295X		176000 MB/sec
	Difference: 48000 (27%)

Texel Rate

The GeForce GTX 970 will be a little bit (about 14%) more effective at texture filtering than the Radeon R9 M295X. (explain)

GeForce GTX 970		109200 Mtexels/sec
Radeon R9 M295X		96000 Mtexels/sec
	Difference: 13200 (14%)

Pixel Rate

The GeForce GTX 970 is quite a bit (about 180%) faster with regards to full screen anti-aliasing than the Radeon R9 M295X, and also will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 970		67200 Mpixels/sec
Radeon R9 M295X		24000 Mpixels/sec
	Difference: 43200 (180%)

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 max amount of data (measured in MB per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip 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 colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.