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Radeon R9 270X vs Radeon R9 M295X

Intro

The Radeon R9 270X comes with core speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 TAUs and 32 ROPs.

Compare all of that to the Radeon R9 M295X, which comes with a core clock speed of 750 MHz and a GDDR5 memory frequency of 1375 MHz. It also makes use of a 256-bit memory bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X 125 Watts
Radeon R9 270X 180 Watts
Difference: 55 Watts (44%)

Memory Bandwidth

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

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

Texel Rate

The Radeon R9 M295X is just a bit (more or less 20%) better at texture filtering than the Radeon R9 270X. (explain)

Radeon R9 M295X 96000 Mtexels/sec
Radeon R9 270X 80000 Mtexels/sec
Difference: 16000 (20%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 270X is superior to the Radeon R9 M295X, by far. (explain)

Radeon R9 270X 32000 Mpixels/sec
Radeon R9 M295X 24000 Mpixels/sec
Difference: 8000 (33%)

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 270X

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 270X Radeon R9 M295X
Manufacturer AMD AMD
Year October 2013 2014
Code Name Curacao XT Unknown
Memory 2048 MB 4096 MB
Core Speed 1000 MHz 750 MHz
Memory Speed 5600 MHz 5500 MHz
Power (Max TDP) 180 watts 125 watts
Bandwidth 179200 MB/sec 176000 MB/sec
Texel Rate 80000 Mtexels/sec 96000 Mtexels/sec
Pixel Rate 32000 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 information (counted in megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 are processed per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

Radeon R9 270X

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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