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Radeon R9 290 vs Radeon R9 M290X

Intro

The Radeon R9 290 features a GPU core speed of 800 MHz, and the 4096 MB of GDDR5 RAM is set to run at 1250 MHz through a 512-bit bus. It also is comprised of 2560 SPUs, 160 TAUs, and 64 Raster Operation Units.

Compare those specs to the Radeon R9 M290X, which features core clock speeds of 850 MHz on the GPU, and 1200 MHz on the 4096 MB of GDDR5 memory. It features 1280 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X 100 Watts
Radeon R9 290 300 Watts
Difference: 200 Watts (200%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 290 is 108% faster than the Radeon R9 M290X overall, due to its higher bandwidth. (explain)

Radeon R9 290 320000 MB/sec
Radeon R9 M290X 153600 MB/sec
Difference: 166400 (108%)

Texel Rate

The Radeon R9 290 is quite a bit (approximately 88%) more effective at AF than the Radeon R9 M290X. (explain)

Radeon R9 290 128000 Mtexels/sec
Radeon R9 M290X 68000 Mtexels/sec
Difference: 60000 (88%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 290 is superior to the Radeon R9 M290X, by a large margin. (explain)

Radeon R9 290 51200 Mpixels/sec
Radeon R9 M290X 27200 Mpixels/sec
Difference: 24000 (88%)

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 R9 290

Amazon.com

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Radeon R9 M290X

Amazon.com

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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 R9 290 Radeon R9 M290X
Manufacturer AMD AMD
Year November 2013 May 1 2014
Code Name Hawaii PRO Neptune XT
Memory 4096 MB 4096 MB
Core Speed 800 MHz 850 MHz
Memory Speed 5000 MHz 4800 MHz
Power (Max TDP) 300 watts 100 watts
Bandwidth 320000 MB/sec 153600 MB/sec
Texel Rate 128000 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 51200 Mpixels/sec 27200 Mpixels/sec
Unified Shaders 2560 1280
Texture Mapping Units 160 80
Render Output Units 64 32
Bus Type GDDR5 GDDR5
Bus Width 512-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 6200 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 largest amount of data (counted in megabytes per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better 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 amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core 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 rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon R9 290

Amazon.com

Check prices at:

Radeon R9 M290X

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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