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Radeon R9 M290X vs Radeon R9 M295X

Intro

The Radeon R9 M290X uses a 28 nm design. AMD has set the core speed at 850 MHz. The GDDR5 RAM works at a speed of 1200 MHz on this specific card. It features 1280 SPUs along with 80 TAUs and 32 Rasterization Operator Units.

Compare that to the Radeon R9 M295X, which comes with a GPU core clock speed of 750 MHz, and 4096 MB of GDDR5 RAM set to run at 1375 MHz through a 256-bit bus. It also is made up of 2048 Stream Processors, 128 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X 100 Watts
Radeon R9 M295X 125 Watts
Difference: 25 Watts (25%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M295X should in theory be a small bit superior to the Radeon R9 M290X in general. (explain)

Radeon R9 M295X 176000 MB/sec
Radeon R9 M290X 153600 MB/sec
Difference: 22400 (15%)

Texel Rate

The Radeon R9 M295X is much (approximately 41%) more effective at AF than the Radeon R9 M290X. (explain)

Radeon R9 M295X 96000 Mtexels/sec
Radeon R9 M290X 68000 Mtexels/sec
Difference: 28000 (41%)

Pixel Rate

The Radeon R9 M290X should be just a bit (approximately 13%) more effective at anti-aliasing than the Radeon R9 M295X, and also capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 M290X 27200 Mpixels/sec
Radeon R9 M295X 24000 Mpixels/sec
Difference: 3200 (13%)

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 M290X

Amazon.com

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Radeon R9 M295X

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 M290X Radeon R9 M295X
Manufacturer AMD AMD
Year May 1 2014 2014
Code Name Neptune XT Unknown
Memory 4096 MB 4096 MB
Core Speed 850 MHz 750 MHz
Memory Speed 4800 MHz 5500 MHz
Power (Max TDP) 100 watts 125 watts
Bandwidth 153600 MB/sec 176000 MB/sec
Texel Rate 68000 Mtexels/sec 96000 Mtexels/sec
Pixel Rate 27200 Mpixels/sec 24000 Mpixels/sec
Unified Shaders 1280 2048
Texture Mapping Units 80 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) 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: Bandwidth is the max amount of data (counted in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon R9 M290X

Amazon.com

Check prices at:

Radeon R9 M295X

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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