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Radeon R7 M265 vs Radeon R9 M270X

Intro

The Radeon R7 M265 has a core clock frequency of 725 MHz and a DDR3 memory frequency of 1000 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is made up of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Compare that to the Radeon R9 M270X, which comes with 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 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M270X will be 125% quicker than the Radeon R7 M265 overall, due to its greater data rate. (explain)

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

Texel Rate

The Radeon R9 M270X will be much (more or less 67%) faster with regards to 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 will be quite a bit (more or less 100%) better at full screen anti-aliasing than the Radeon R7 M265, and also will be capable of handling higher resolutions while still performing well. (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 data (counted in MB per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the 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 number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling 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 its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many 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

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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