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GeForce GTX 970M vs Radeon R9 M395X

Intro

The GeForce GTX 970M makes use of a 28 nm design. nVidia has set the core frequency at 924 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this particular card. It features 1280 SPUs as well as 80 TAUs and 48 ROPs.

Compare those specifications to the Radeon R9 M395X, which uses a 28 nm design. AMD has clocked the core frequency at 723 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this card. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M 75 Watts
Radeon R9 M395X 125 Watts
Difference: 50 Watts (67%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M395X should in theory be much better than the GeForce GTX 970M in general. (explain)

Radeon R9 M395X 160000 MB/sec
GeForce GTX 970M 96000 MB/sec
Difference: 64000 (67%)

Texel Rate

The Radeon R9 M395X will be much (more or less 25%) faster with regards to texture filtering than the GeForce GTX 970M. (explain)

Radeon R9 M395X 92544 Mtexels/sec
GeForce GTX 970M 73920 Mtexels/sec
Difference: 18624 (25%)

Pixel Rate

The GeForce GTX 970M is quite a bit (about 92%) more effective at AA than the Radeon R9 M395X, and capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 970M 44352 Mpixels/sec
Radeon R9 M395X 23136 Mpixels/sec
Difference: 21216 (92%)

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

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Radeon R9 M395X

Amazon.com

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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 M395X
Manufacturer nVidia AMD
Year October 7 2014 2015
Code Name GM204 Tonga
Memory 3072 MB 4096 MB
Core Speed 924 MHz 723 MHz
Memory Speed 4000 MHz 5000 MHz
Power (Max TDP) 75 watts 125 watts
Bandwidth 96000 MB/sec 160000 MB/sec
Texel Rate 73920 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 44352 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 1280 2048
Texture Mapping Units 80 128
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-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 12
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total texture units 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of 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

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GeForce GTX 970M

Amazon.com

Check prices at:

Radeon R9 M395X

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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