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Radeon R9 M270X vs Radeon R9 Nano

Intro

The Radeon R9 M270X makes use of a 28 nm design. AMD has set the core frequency at 725 MHz. The GDDR5 memory is set to run at a frequency of 1125 MHz on this specific model. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Compare all that to the Radeon R9 Nano, which makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The HBM RAM works at a speed of 500 MHz on this card. It features 4096 SPUs as well as 256 TAUs and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 Nano should in theory be a lot faster than the Radeon R9 M270X overall. (explain)

Radeon R9 Nano 512000 MB/sec
Radeon R9 M270X 72000 MB/sec
Difference: 440000 (611%)

Texel Rate

The Radeon R9 Nano will be much (about 783%) more effective at anisotropic filtering than the Radeon R9 M270X. (explain)

Radeon R9 Nano 256000 Mtexels/sec
Radeon R9 M270X 29000 Mtexels/sec
Difference: 227000 (783%)

Pixel Rate

The Radeon R9 Nano will be quite a bit (about 452%) faster with regards to FSAA than the Radeon R9 M270X, and will be capable of handling higher resolutions better. (explain)

Radeon R9 Nano 64000 Mpixels/sec
Radeon R9 M270X 11600 Mpixels/sec
Difference: 52400 (452%)

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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Radeon R9 M270X

Amazon.com

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Radeon R9 Nano

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 Radeon R9 M270X Radeon R9 Nano
Manufacturer AMD AMD
Year May 1 2014 September 2015
Code Name Venus XT Fiji XT
Memory 2048 MB 4096 MB
Core Speed 725 MHz 1000 MHz
Memory Speed 4500 MHz 500 MHz
Power (Max TDP) (Unknown) watts 175 watts
Bandwidth 72000 MB/sec 512000 MB/sec
Texel Rate 29000 Mtexels/sec 256000 Mtexels/sec
Pixel Rate 11600 Mpixels/sec 64000 Mpixels/sec
Unified Shaders 640 4096
Texture Mapping Units 40 256
Render Output Units 16 64
Bus Type GDDR5 HBM
Bus Width 128-bit 4096-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million 8900 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, 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 most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon R9 M270X

Amazon.com

Check prices at:

Radeon R9 Nano

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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