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Radeon R7 M265 vs Radeon R9 M270X

Intro

The Radeon R7 M265 comes with core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 384 SPUs as well as 24 TAUs and 8 ROPs.

Compare those specs to the Radeon R9 M270X, which features clock speeds of 725 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M270X will be 125% faster than the Radeon R7 M265 in general, due to its greater bandwidth. (explain)

Radeon R9 M270X 72000 MB/sec
Radeon R7 M265 32000 MB/sec
Difference: 40000 (125%)

Texel Rate

The Radeon R9 M270X will be quite a bit (about 67%) more effective at AF than the Radeon R7 M265. (explain)

Radeon R9 M270X 29000 Mtexels/sec
Radeon R7 M265 17400 Mtexels/sec
Difference: 11600 (67%)

Pixel Rate

The Radeon R9 M270X is a lot (more or less 100%) better at full screen anti-aliasing than the Radeon R7 M265, and should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R9 M270X 11600 Mpixels/sec
Radeon R7 M265 5800 Mpixels/sec
Difference: 5800 (100%)

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 R7 M265

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 Radeon R7 M265 Radeon R9 M270X
Manufacturer AMD AMD
Year May 1 2014 May 1 2014
Code Name Opal XT Venus XT
Memory 2048 MB 2048 MB
Core Speed 725 MHz 725 MHz
Memory Speed 2000 MHz 4500 MHz
Power (Max TDP) (Unknown) watts (Unknown) watts
Bandwidth 32000 MB/sec 72000 MB/sec
Texel Rate 17400 Mtexels/sec 29000 Mtexels/sec
Pixel Rate 5800 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 384 640
Texture Mapping Units 24 40
Render Output Units 8 16
Bus Type DDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x8 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon R7 M265

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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