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Radeon HD 6670 (OEM) vs Radeon R7 M260X

Intro

The Radeon HD 6670 (OEM) features a core clock frequency of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is made up of 480 SPUs, 24 TAUs, and 8 Raster Operation Units.

Compare those specifications to the Radeon R7 M260X, which has a GPU core clock speed of 825 MHz, and 2048 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is comprised of 384 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have exactly the same bandwidth, so theoretically they should have the same performance. (explain)

Texel Rate

The Radeon R7 M260X will be a little bit (approximately 3%) better at anisotropic filtering than the Radeon HD 6670 (OEM). (explain)

Radeon R7 M260X 19800 Mtexels/sec
Radeon HD 6670 (OEM) 19200 Mtexels/sec
Difference: 600 (3%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R7 M260X is superior to the Radeon HD 6670 (OEM), but not by far. (explain)

Radeon R7 M260X 6600 Mpixels/sec
Radeon HD 6670 (OEM) 6400 Mpixels/sec
Difference: 200 (3%)

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 6670 (OEM)

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 6670 (OEM) Radeon R7 M260X
Manufacturer AMD AMD
Year February 2011 June 2014
Code Name Turks Opal
Memory 512 MB 2048 MB
Core Speed 800 MHz 825 MHz
Memory Speed 4000 MHz 4000 MHz
Power (Max TDP) 63 watts (Unknown) watts
Bandwidth 64000 MB/sec 64000 MB/sec
Texel Rate 19200 Mtexels/sec 19800 Mtexels/sec
Pixel Rate 6400 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 480 384
Texture Mapping Units 24 24
Render Output Units 8 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 715 million (Unknown) million
Bus PCIe 2.1 x16 PCIe 3.0 x8
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6670 (OEM)

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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