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Radeon HD 5670 vs Radeon R7 250

Intro

The Radeon HD 5670 features a GPU clock speed of 775 MHz, and the 1024 MB of GDDR5 RAM is set to run at 1000 MHz through a 128-bit bus. It also features 400(80x5) SPUs, 20 TAUs, and 8 Raster Operation Units.

Compare that to the Radeon R7 250, which comes with a GPU core clock speed of 1000 MHz, and 1024 MB of GDDR5 memory set to run at 1150 MHz through a 128-bit bus. It also features 384 Stream Processors, 24 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
Radeon R7 250 65 Watts
Difference: 4 Watts (7%)

Memory Bandwidth

As far as performance goes, the Radeon R7 250 should in theory be a little bit superior to the Radeon HD 5670 in general. (explain)

Radeon R7 250 73600 MB/sec
Radeon HD 5670 64000 MB/sec
Difference: 9600 (15%)

Texel Rate

The Radeon R7 250 should be much (about 55%) faster with regards to texture filtering than the Radeon HD 5670. (explain)

Radeon R7 250 24000 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 8500 (55%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R7 250 is the winner, by far. (explain)

Radeon R7 250 8000 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 1800 (29%)

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 R7 250

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 R7 250
Manufacturer AMD AMD
Year January 14, 2010 October 2013
Code Name Redwood XT Oland XT
Memory 1024 MB 1024 MB
Core Speed 775 MHz 1000 MHz
Memory Speed 4000 MHz 4600 MHz
Power (Max TDP) 61 watts 65 watts
Bandwidth 64000 MB/sec 73600 MB/sec
Texel Rate 15500 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 6200 Mpixels/sec 8000 Mpixels/sec
Unified Shaders 400(80x5) 384
Texture Mapping Units 20 24
Render Output Units 8 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 627 million 1040 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 largest amount of data (counted in MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 5670

Amazon.com

Check prices at:

Radeon R7 250

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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