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Radeon R7 250 vs Radeon R9 M280X

Intro

The Radeon R7 250 features clock speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs along with 24 TAUs and 8 Rasterization Operator Units.

Compare those specs to the Radeon R9 M280X, which comes with GPU core speed of 900 MHz, and 4096 MB of GDDR5 memory set to run at 1375 MHz through a 128-bit bus. It also features 896 Stream Processors, 56 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250 65 Watts
Radeon R9 M280X 75 Watts
Difference: 10 Watts (15%)

Memory Bandwidth

The Radeon R9 M280X should theoretically be a small bit faster than the Radeon R7 250 in general. (explain)

Radeon R9 M280X 88000 MB/sec
Radeon R7 250 73600 MB/sec
Difference: 14400 (20%)

Texel Rate

The Radeon R9 M280X is quite a bit (more or less 110%) better at texture filtering than the Radeon R7 250. (explain)

Radeon R9 M280X 50400 Mtexels/sec
Radeon R7 250 24000 Mtexels/sec
Difference: 26400 (110%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M280X is the winner, by a large margin. (explain)

Radeon R9 M280X 14400 Mpixels/sec
Radeon R7 250 8000 Mpixels/sec
Difference: 6400 (80%)

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 R7 250

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 R7 250 Radeon R9 M280X
Manufacturer AMD AMD
Year October 2013 Feb 9 2015
Code Name Oland XT Saturn XT
Memory 1024 MB 4096 MB
Core Speed 1000 MHz 900 MHz
Memory Speed 4600 MHz 5500 MHz
Power (Max TDP) 65 watts 75 watts
Bandwidth 73600 MB/sec 88000 MB/sec
Texel Rate 24000 Mtexels/sec 50400 Mtexels/sec
Pixel Rate 8000 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 384 896
Texture Mapping Units 24 56
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 1040 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units by the core clock 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 in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon R7 250

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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