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Radeon R9 M290X vs Radeon R9 M295X

Intro

The Radeon R9 M290X uses a 28 nm design. AMD has clocked the core frequency at 850 MHz. The GDDR5 RAM is set to run at a frequency of 1200 MHz on this card. It features 1280 SPUs along with 80 TAUs and 32 ROPs.

Compare all of that to the Radeon R9 M295X, which has GPU clock speed of 750 MHz, and 4096 MB of GDDR5 RAM set to run at 1375 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 32 ROPs.

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

Theoretically speaking, the Radeon R9 M295X should be a little bit faster than the Radeon R9 M290X overall. (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 (more or less 41%) faster with regards to 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

If running with lots of anti-aliasing is important to you, then the Radeon R9 M290X is a better choice, not by a very large margin though. (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 largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach 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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