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Radeon R9 270 vs Radeon R9 M295X

Intro

The Radeon R9 270 makes use of a 28 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 RAM is set to run at a frequency of 1400 MHz on this specific model. It features 1280 SPUs as well as 80 TAUs and 32 ROPs.

Compare those specs to the Radeon R9 M295X, which has core clock speeds of 750 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X 125 Watts
Radeon R9 270 150 Watts
Difference: 25 Watts (20%)

Memory Bandwidth

As far as performance goes, the Radeon R9 270 should theoretically be a bit better than the Radeon R9 M295X in general. (explain)

Radeon R9 270 179200 MB/sec
Radeon R9 M295X 176000 MB/sec
Difference: 3200 (2%)

Texel Rate

The Radeon R9 M295X will be quite a bit (approximately 33%) better at AF than the Radeon R9 270. (explain)

Radeon R9 M295X 96000 Mtexels/sec
Radeon R9 270 72000 Mtexels/sec
Difference: 24000 (33%)

Pixel Rate

The Radeon R9 270 should be a small bit (approximately 20%) better at FSAA than the Radeon R9 M295X, and should be able to handle higher resolutions more effectively. (explain)

Radeon R9 270 28800 Mpixels/sec
Radeon R9 M295X 24000 Mpixels/sec
Difference: 4800 (20%)

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 270

Amazon.com

Check prices at:

Radeon R9 M295X

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 Radeon R9 270 Radeon R9 M295X
Manufacturer AMD AMD
Year November 2013 2014
Code Name Curacao Pro Unknown
Memory 2048 MB 4096 MB
Core Speed 900 MHz 750 MHz
Memory Speed 5600 MHz 5500 MHz
Power (Max TDP) 150 watts 125 watts
Bandwidth 179200 MB/sec 176000 MB/sec
Texel Rate 72000 Mtexels/sec 96000 Mtexels/sec
Pixel Rate 28800 Mpixels/sec 24000 Mpixels/sec
Unified Shaders 1280 2048
Texture Mapping Units 80 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 2800 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high 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 amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

Radeon R9 270

Amazon.com

Check prices at:

Radeon R9 M295X

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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