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Radeon HD 7950 3GB vs Radeon R7 M260X

Intro

The Radeon HD 7950 3GB uses a 28 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 RAM works at a frequency of 1250 MHz on this particular card. It features 1792 SPUs as well as 112 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Radeon R7 M260X, which makes use of a 28 nm design. AMD has clocked the core speed at 825 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this model. It features 384 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 7950 3GB should be a lot faster than the Radeon R7 M260X overall. (explain)

Radeon HD 7950 3GB 240000 MB/sec
Radeon R7 M260X 64000 MB/sec
Difference: 176000 (275%)

Texel Rate

The Radeon HD 7950 3GB will be a lot (approximately 353%) more effective at texture filtering than the Radeon R7 M260X. (explain)

Radeon HD 7950 3GB 89600 Mtexels/sec
Radeon R7 M260X 19800 Mtexels/sec
Difference: 69800 (353%)

Pixel Rate

The Radeon HD 7950 3GB should be a lot (about 288%) better at AA than the Radeon R7 M260X, and also capable of handling higher resolutions without slowing down too much. (explain)

Radeon HD 7950 3GB 25600 Mpixels/sec
Radeon R7 M260X 6600 Mpixels/sec
Difference: 19000 (288%)

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 7950 3GB

Amazon.com

Check prices at:

Radeon R7 M260X

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 7950 3GB Radeon R7 M260X
Manufacturer AMD AMD
Year January 2012 June 2014
Code Name Tahiti Pro Opal
Memory 3072 MB 2048 MB
Core Speed 800 MHz 825 MHz
Memory Speed 5000 MHz 4000 MHz
Power (Max TDP) 200 watts (Unknown) watts
Bandwidth 240000 MB/sec 64000 MB/sec
Texel Rate 89600 Mtexels/sec 19800 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 1792 384
Texture Mapping Units 112 24
Render Output Units 32 8
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 4313 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x8
DirectX Version DirectX 11.1 DirectX 11.2
OpenGL Version OpenGL 4.2 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka 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, especially 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 HD 7950 3GB

Amazon.com

Check prices at:

Radeon R7 M260X

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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