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GeForce GTX 970M vs Radeon R9 M280X

Intro

The GeForce GTX 970M comes with a GPU core clock speed of 924 MHz, and the 3072 MB of GDDR5 RAM is set to run at 1000 MHz through a 192-bit bus. It also features 1280 SPUs, 80 TAUs, and 48 ROPs.

Compare that to the Radeon R9 M280X, which comes with GPU clock speed of 900 MHz, and 4096 MB of GDDR5 RAM set to run at 1375 MHz through a 128-bit bus. It also is made up of 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce GTX 970M is 9% quicker than the Radeon R9 M280X in general, due to its greater bandwidth. (explain)

GeForce GTX 970M 96000 MB/sec
Radeon R9 M280X 88000 MB/sec
Difference: 8000 (9%)

Texel Rate

The GeForce GTX 970M will be a lot (about 47%) faster with regards to AF than the Radeon R9 M280X. (explain)

GeForce GTX 970M 73920 Mtexels/sec
Radeon R9 M280X 50400 Mtexels/sec
Difference: 23520 (47%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 970M is the winner, by far. (explain)

GeForce GTX 970M 44352 Mpixels/sec
Radeon R9 M280X 14400 Mpixels/sec
Difference: 29952 (208%)

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

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GeForce GTX 970M

Amazon.com

Check prices at:

Radeon R9 M280X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 970M Radeon R9 M280X
Manufacturer nVidia AMD
Year October 7 2014 Feb 9 2015
Code Name GM204 Saturn XT
Memory 3072 MB 4096 MB
Core Speed 924 MHz 900 MHz
Memory Speed 4000 MHz 5500 MHz
Power (Max TDP) 75 watts 75 watts
Bandwidth 96000 MB/sec 88000 MB/sec
Texel Rate 73920 Mtexels/sec 50400 Mtexels/sec
Pixel Rate 44352 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 1280 896
Texture Mapping Units 80 56
Render Output Units 48 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.2
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, 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 number of pixels that the graphics card could possibly record to the local memory in one 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 rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 970M

Amazon.com

Check prices at:

Radeon R9 M280X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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