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GeForce GTX 970M vs Radeon RX 460

Intro

The GeForce GTX 970M features a core clock speed of 924 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 192-bit memory bus, and makes use of a 28 nm design. It is made up of 1280 SPUs, 80 TAUs, and 48 Raster Operation Units.

Compare those specifications to the Radeon RX 460, which uses a 14 nm design. AMD has clocked the core frequency at 1090 MHz. The GDDR5 RAM runs at a frequency of 1750 MHz on this specific model. It features 896 SPUs as well as 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

Performance-wise, the Radeon RX 460 should in theory be a little bit superior to the GeForce GTX 970M in general. (explain)

Radeon RX 460 112000 MB/sec
GeForce GTX 970M 96000 MB/sec
Difference: 16000 (17%)

Texel Rate

The GeForce GTX 970M should be much (more or less 21%) better at AF than the Radeon RX 460. (explain)

GeForce GTX 970M 73920 Mtexels/sec
Radeon RX 460 61040 Mtexels/sec
Difference: 12880 (21%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 970M is a better choice, and very much so. (explain)

GeForce GTX 970M 44352 Mpixels/sec
Radeon RX 460 17440 Mpixels/sec
Difference: 26912 (154%)

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

GeForce GTX 970M

Radeon RX 460

Specifications

Display Specifications

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Model GeForce GTX 970M Radeon RX 460
Manufacturer nVidia AMD
Year October 7 2014 August 2016
Code Name GM204 Polaris 11
Memory 3072 MB 4096 MB
Core Speed 924 MHz 1090 MHz
Memory Speed 4000 MHz 7000 MHz
Power (Max TDP) 75 watts 75 watts
Bandwidth 96000 MB/sec 112000 MB/sec
Texel Rate 73920 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 44352 Mpixels/sec 17440 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 14 nm
Transistors (Unknown) million 3000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

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 is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at 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 that the graphics card could possibly record to its local memory in one 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 - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

GeForce GTX 970M

Radeon RX 460

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