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Radeon HD 5670 vs Radeon R9 M275X

Intro

The Radeon HD 5670 uses a 40 nm design. AMD has clocked the core frequency at 775 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this particular model. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

Compare all that to the Radeon R9 M275X, which comes with a GPU core clock speed of 900 MHz, and 2048 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X 50 Watts
Radeon HD 5670 61 Watts
Difference: 11 Watts (22%)

Memory Bandwidth

In theory, the Radeon R9 M275X should be a little bit faster than the Radeon HD 5670 in general. (explain)

Radeon R9 M275X 72000 MB/sec
Radeon HD 5670 64000 MB/sec
Difference: 8000 (13%)

Texel Rate

The Radeon R9 M275X should be much (more or less 132%) more effective at anisotropic filtering than the Radeon HD 5670. (explain)

Radeon R9 M275X 36000 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 20500 (132%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 M275X is superior to the Radeon HD 5670, by a large margin. (explain)

Radeon R9 M275X 14400 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 8200 (132%)

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 HD 5670

Amazon.com

Check prices at:

Radeon R9 M275X

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 5670 Radeon R9 M275X
Manufacturer AMD AMD
Year January 14, 2010 May 1 2014
Code Name Redwood XT Venus XTX
Memory 1024 MB 2048 MB
Core Speed 775 MHz 900 MHz
Memory Speed 4000 MHz 4500 MHz
Power (Max TDP) 61 watts 50 watts
Bandwidth 64000 MB/sec 72000 MB/sec
Texel Rate 15500 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 6200 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 400(80x5) 640
Texture Mapping Units 20 40
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 627 million (Unknown) million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the interface 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 higher the card's 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 amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few 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 HD 5670

Amazon.com

Check prices at:

Radeon R9 M275X

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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