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Radeon R9 M290X vs Radeon R9 M295X

Intro

The Radeon R9 M290X has a clock frequency of 850 MHz and a GDDR5 memory speed of 1200 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 1280 SPUs, 80 TAUs, and 32 Raster Operation Units.

Compare all that to the Radeon R9 M295X, which has GPU core speed of 750 MHz, and 4096 MB of GDDR5 memory running at 1375 MHz through a 256-bit bus. It also is made up of 2048 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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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

In theory, the Radeon R9 M295X should be 15% quicker than the Radeon R9 M290X overall, because of its higher data rate. (explain)

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

Texel Rate

The Radeon R9 M295X is a lot (about 41%) better at texture filtering 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 is a little bit (approximately 13%) more effective at FSAA than the Radeon R9 M295X, and will be capable of handling higher resolutions better. (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

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.

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 maximum amount of data (measured in MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

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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