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Radeon HD 6750 1GB vs Radeon R9 M280X

Intro

The Radeon HD 6750 1GB makes use of a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this specific card. It features 720 SPUs along with 36 Texture Address Units and 16 Rasterization Operator Units.

Compare all of that to the Radeon R9 M280X, which features a clock speed of 900 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It features 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X 75 Watts
Radeon HD 6750 1GB 86 Watts
Difference: 11 Watts (15%)

Memory Bandwidth

Performance-wise, the Radeon R9 M280X should in theory be a lot superior to the Radeon HD 6750 1GB overall. (explain)

Radeon R9 M280X 88000 MB/sec
Radeon HD 6750 1GB 64000 MB/sec
Difference: 24000 (38%)

Texel Rate

The Radeon R9 M280X should be much (more or less 93%) faster with regards to texture filtering than the Radeon HD 6750 1GB. (explain)

Radeon R9 M280X 50400 Mtexels/sec
Radeon HD 6750 1GB 26100 Mtexels/sec
Difference: 24300 (93%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M280X is the winner, by a large margin. (explain)

Radeon R9 M280X 14400 Mpixels/sec
Radeon HD 6750 1GB 11600 Mpixels/sec
Difference: 2800 (24%)

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 6750 1GB

Amazon.com

Check prices at:

Radeon R9 M280X

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 6750 1GB Radeon R9 M280X
Manufacturer AMD AMD
Year January 2011 Feb 9 2015
Code Name Juniper Pro Saturn XT
Memory 1024 MB 4096 MB
Core Speed 725 MHz 900 MHz
Memory Speed 4000 MHz 5500 MHz
Power (Max TDP) 86 watts 75 watts
Bandwidth 64000 MB/sec 88000 MB/sec
Texel Rate 26100 Mtexels/sec 50400 Mtexels/sec
Pixel Rate 11600 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 720 896
Texture Mapping Units 36 56
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1040 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: Bandwidth is the largest amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must 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 anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure 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 outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 6750 1GB

Amazon.com

Check prices at:

Radeon R9 M280X

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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