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Radeon HD 5870 vs Radeon R9 M390X

Intro

The Radeon HD 5870 makes use of a 40 nm design. AMD has set the core frequency at 850 MHz. The GDDR5 memory is set to run at a frequency of 1200 MHz on this model. It features 1600(320x5) SPUs along with 80 Texture Address Units and 32 ROPs.

Compare those specs to the Radeon R9 M390X, which makes use of a 28 nm design. AMD has clocked the core speed at 723 MHz. The GDDR5 memory is set to run at a speed of 1250 MHz on this specific card. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X 125 Watts
Radeon HD 5870 188 Watts
Difference: 63 Watts (50%)

Memory Bandwidth

Theoretically, the Radeon R9 M390X should perform a bit faster than the Radeon HD 5870 overall. (explain)

Radeon R9 M390X 160000 MB/sec
Radeon HD 5870 153600 MB/sec
Difference: 6400 (4%)

Texel Rate

The Radeon R9 M390X is much (about 36%) better at anisotropic filtering than the Radeon HD 5870. (explain)

Radeon R9 M390X 92544 Mtexels/sec
Radeon HD 5870 68000 Mtexels/sec
Difference: 24544 (36%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 5870 is the winner, though not by far. (explain)

Radeon HD 5870 27200 Mpixels/sec
Radeon R9 M390X 23136 Mpixels/sec
Difference: 4064 (18%)

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 HD 5870

Amazon.com

Check prices at:

Radeon R9 M390X

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 HD 5870 Radeon R9 M390X
Manufacturer AMD AMD
Year September 23, 2009 2015
Code Name Cypress XT Tonga
Memory 1024 MB 4096 MB
Core Speed 850 MHz 723 MHz
Memory Speed 4800 MHz 5000 MHz
Power (Max TDP) 188 watts 125 watts
Bandwidth 153600 MB/sec 160000 MB/sec
Texel Rate 68000 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 27200 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 1600(320x5) 2048
Texture Mapping Units 80 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 2154 million (Unknown) million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, the result 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 anti-aliasing, High Dynamic Range and high 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 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 most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. 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 - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 5870

Amazon.com

Check prices at:

Radeon R9 M390X

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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