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Radeon HD 5970 vs Radeon R9 M265X

Intro

The Radeon HD 5970 features core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 1600 SPUs as well as 160 Texture Address Units and 64 ROPs.

Compare all of that to the Radeon R9 M265X, which comes with core speeds of 575 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 5970 will be 256% quicker than the Radeon R9 M265X overall, because of its higher bandwidth. (explain)

Radeon HD 5970 256000 MB/sec
Radeon R9 M265X 72000 MB/sec
Difference: 184000 (256%)

Texel Rate

The Radeon HD 5970 will be quite a bit (about 909%) faster with regards to AF than the Radeon R9 M265X. (explain)

Radeon HD 5970 232000 Mtexels/sec
Radeon R9 M265X 23000 Mtexels/sec
Difference: 209000 (909%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 5970 is superior to the Radeon R9 M265X, by far. (explain)

Radeon HD 5970 92800 Mpixels/sec
Radeon R9 M265X 9200 Mpixels/sec
Difference: 83600 (909%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Radeon HD 5970

Amazon.com

Check prices at:

Radeon R9 M265X

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 HD 5970 Radeon R9 M265X
Manufacturer AMD AMD
Year November 2009 May 1 2014
Code Name Hemlock XT Venus Pro
Memory 1024 MB (x2) 2048 MB
Core Speed 725 MHz (x2) 575 MHz
Memory Speed 4000 MHz (x2) 4500 MHz
Power (Max TDP) 294 watts (Unknown) watts
Bandwidth 256000 MB/sec 72000 MB/sec
Texel Rate 232000 Mtexels/sec 23000 Mtexels/sec
Pixel Rate 92800 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 1600 (x2) 640
Texture Mapping Units 160 (x2) 40
Render Output Units 64 (x2) 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit (x2) 128-bit
Fab Process 40 nm 28 nm
Transistors 2154 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can 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 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 bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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Radeon HD 5970

Amazon.com

Check prices at:

Radeon R9 M265X

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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