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GeForce GTX 880M vs Radeon RX 460

Intro

The GeForce GTX 880M makes use of a 28 nm design. nVidia has set the core frequency at 954 MHz. The GDDR5 RAM is set to run at a speed of 1000 MHz on this particular card. It features 1536 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Compare all of that to the Radeon RX 460, which comes with a GPU core clock speed of 1090 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also is comprised of 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 75 Watts
GeForce GTX 880M 130 Watts
Difference: 55 Watts (73%)

Memory Bandwidth

In theory, the GeForce GTX 880M is 14% quicker than the Radeon RX 460 overall, because of its higher data rate. (explain)

GeForce GTX 880M 128000 MB/sec
Radeon RX 460 112000 MB/sec
Difference: 16000 (14%)

Texel Rate

The GeForce GTX 880M should be quite a bit (more or less 100%) more effective at anisotropic filtering than the Radeon RX 460. (explain)

GeForce GTX 880M 122112 Mtexels/sec
Radeon RX 460 61040 Mtexels/sec
Difference: 61072 (100%)

Pixel Rate

The GeForce GTX 880M should be quite a bit (about 75%) better at anti-aliasing than the Radeon RX 460, and also able to handle higher resolutions more effectively. (explain)

GeForce GTX 880M 30528 Mpixels/sec
Radeon RX 460 17440 Mpixels/sec
Difference: 13088 (75%)

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 880M

Amazon.com

Radeon RX 460

Amazon.com

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 880M Radeon RX 460
Manufacturer nVidia AMD
Year March 12 2014 August 2016
Code Name GK104 Polaris 11
Memory 4096 MB 4096 MB
Core Speed 954 MHz 1090 MHz
Memory Speed 4000 MHz 7000 MHz
Power (Max TDP) 130 watts 75 watts
Bandwidth 128000 MB/sec 112000 MB/sec
Texel Rate 122112 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 17440 Mpixels/sec
Unified Shaders 1536 896
Texture Mapping Units 128 56
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-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 largest amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling 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 the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

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