GeForce GTX 970 vs Radeon R9 M270X

Intro

Compare all that to the Radeon R9 M270X, which features GPU core speed of 725 MHz, and 2048 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 970 should perform a lot faster than the Radeon R9 M270X overall. (explain)

GeForce GTX 970		224000 MB/sec
Radeon R9 M270X		72000 MB/sec
	Difference: 152000 (211%)

Texel Rate

The GeForce GTX 970 should be much (about 277%) faster with regards to anisotropic filtering than the Radeon R9 M270X. (explain)

GeForce GTX 970		109200 Mtexels/sec
Radeon R9 M270X		29000 Mtexels/sec
	Difference: 80200 (277%)

Pixel Rate

The GeForce GTX 970 is a lot (approximately 479%) better at AA than the Radeon R9 M270X, and should be able to handle higher resolutions more effectively. (explain)

GeForce GTX 970		67200 Mpixels/sec
Radeon R9 M270X		11600 Mpixels/sec
	Difference: 55600 (479%)

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 megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's 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 lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.