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GeForce GTX 860M vs Radeon R9 M270X

Intro

The GeForce GTX 860M features a core clock speed of 797 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It features 1152 SPUs, 96 TAUs, and 16 ROPs.

Compare those specifications to the Radeon R9 M270X, which features a GPU core clock speed of 725 MHz, and 2048 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 M270X should in theory be a bit superior to the GeForce GTX 860M in general. (explain)

Radeon R9 M270X 72000 MB/sec
GeForce GTX 860M 64000 MB/sec
Difference: 8000 (13%)

Texel Rate

The GeForce GTX 860M should be a lot (more or less 164%) more effective at anisotropic filtering than the Radeon R9 M270X. (explain)

GeForce GTX 860M 76512 Mtexels/sec
Radeon R9 M270X 29000 Mtexels/sec
Difference: 47512 (164%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 860M is superior to the Radeon R9 M270X, but only just. (explain)

GeForce GTX 860M 12752 Mpixels/sec
Radeon R9 M270X 11600 Mpixels/sec
Difference: 1152 (10%)

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 860M

Amazon.com

Check prices at:

Radeon R9 M270X

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 860M Radeon R9 M270X
Manufacturer nVidia AMD
Year March 12 2014 May 1 2014
Code Name GM107 Venus XT
Memory 4096 MB 2048 MB
Core Speed 797 MHz 725 MHz
Memory Speed 4000 MHz 4500 MHz
Power (Max TDP) 45 watts (Unknown) watts
Bandwidth 64000 MB/sec 72000 MB/sec
Texel Rate 76512 Mtexels/sec 29000 Mtexels/sec
Pixel Rate 12752 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 1152 640
Texture Mapping Units 96 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-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 information (measured in megabytes per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount 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 output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 860M

Amazon.com

Check prices at:

Radeon R9 M270X

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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