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Radeon R9 M295X vs Radeon RX 470

Intro

The Radeon R9 M295X uses a 28 nm design. AMD has set the core frequency at 750 MHz. The GDDR5 RAM works at a frequency of 1375 MHz on this model. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Compare that to the Radeon RX 470, which uses a 14 nm design. AMD has set the core speed at 926 MHz. The GDDR5 memory is set to run at a frequency of 1650 MHz on this particular model. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 120 Watts
Radeon R9 M295X 125 Watts
Difference: 5 Watts (4%)

Memory Bandwidth

The Radeon RX 470 should in theory be a little bit faster than the Radeon R9 M295X in general. (explain)

Radeon RX 470 211200 MB/sec
Radeon R9 M295X 176000 MB/sec
Difference: 35200 (20%)

Texel Rate

The Radeon RX 470 will be much (more or less 23%) faster with regards to texture filtering than the Radeon R9 M295X. (explain)

Radeon RX 470 118528 Mtexels/sec
Radeon R9 M295X 96000 Mtexels/sec
Difference: 22528 (23%)

Pixel Rate

The Radeon RX 470 should be a lot (about 23%) better at FSAA than the Radeon R9 M295X, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 470 29632 Mpixels/sec
Radeon R9 M295X 24000 Mpixels/sec
Difference: 5632 (23%)

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 M295X

Amazon.com

Radeon RX 470

Amazon.com

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 M295X Radeon RX 470
Manufacturer AMD AMD
Year 2014 August 2016
Code Name Unknown Polaris 10
Memory 4096 MB 8192 MB
Core Speed 750 MHz 926 MHz
Memory Speed 5500 MHz 6600 MHz
Power (Max TDP) 125 watts 120 watts
Bandwidth 176000 MB/sec 211200 MB/sec
Texel Rate 96000 Mtexels/sec 118528 Mtexels/sec
Pixel Rate 24000 Mpixels/sec 29632 Mpixels/sec
Unified Shaders 2048 2048
Texture Mapping Units 128 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 14 nm
Transistors (Unknown) million 5700 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, the result 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, 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 can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

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