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GeForce GTX 960 vs Radeon R5 M255

Intro

The GeForce GTX 960 has a GPU clock speed of 1127 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1750 MHz through a 128-bit bus. It also is comprised of 1024 Stream Processors, 64 TAUs, and 32 Raster Operation Units.

Compare those specifications to the Radeon R5 M255, which makes use of a 28 nm design. AMD has set the core speed at 940 MHz. The DDR3 RAM runs at a speed of 1000 MHz on this card. It features 320 SPUs as well as 20 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GTX 960 should in theory be quite a bit better than the Radeon R5 M255 overall. (explain)

GeForce GTX 960 112000 MB/sec
Radeon R5 M255 16000 MB/sec
Difference: 96000 (600%)

Texel Rate

The GeForce GTX 960 should be much (more or less 284%) faster with regards to AF than the Radeon R5 M255. (explain)

GeForce GTX 960 72128 Mtexels/sec
Radeon R5 M255 18800 Mtexels/sec
Difference: 53328 (284%)

Pixel Rate

The GeForce GTX 960 will be a lot (about 380%) faster with regards to anti-aliasing than the Radeon R5 M255, and should be able to handle higher resolutions better. (explain)

GeForce GTX 960 36064 Mpixels/sec
Radeon R5 M255 7520 Mpixels/sec
Difference: 28544 (380%)

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 960

Amazon.com

Check prices at:

Radeon R5 M255

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 960 Radeon R5 M255
Manufacturer nVidia AMD
Year January 2015 June 2014
Code Name GM206 Jet Pro
Memory 2048 MB 2048 MB
Core Speed 1127 MHz 940 MHz
Memory Speed 7000 MHz 2000 MHz
Power (Max TDP) 120 watts (Unknown) watts
Bandwidth 112000 MB/sec 16000 MB/sec
Texel Rate 72128 Mtexels/sec 18800 Mtexels/sec
Pixel Rate 36064 Mpixels/sec 7520 Mpixels/sec
Unified Shaders 1024 320
Texture Mapping Units 64 20
Render Output Units 32 8
Bus Type GDDR5 DDR3
Bus Width 128-bit 64-bit
Fab Process 28 nm 28 nm
Transistors 2940 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x8
DirectX Version DirectX 12.0 DirectX 11.2
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units by the core clock 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 number of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 960

Amazon.com

Check prices at:

Radeon R5 M255

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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