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Radeon HD 5850 vs Radeon R9 M395X

Intro

The Radeon HD 5850 comes with a core clock speed of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It is comprised of 1440(288x5) SPUs, 72 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the Radeon R9 M395X, which features a GPU core clock speed of 723 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 256-bit bus. It also features 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X 125 Watts
Radeon HD 5850 151 Watts
Difference: 26 Watts (21%)

Memory Bandwidth

In theory, the Radeon R9 M395X will be 25% quicker than the Radeon HD 5850 in general, due to its greater data rate. (explain)

Radeon R9 M395X 160000 MB/sec
Radeon HD 5850 128000 MB/sec
Difference: 32000 (25%)

Texel Rate

The Radeon R9 M395X is much (more or less 77%) better at anisotropic filtering than the Radeon HD 5850. (explain)

Radeon R9 M395X 92544 Mtexels/sec
Radeon HD 5850 52200 Mtexels/sec
Difference: 40344 (77%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 5850 is a better choice, but not by far. (explain)

Radeon HD 5850 23200 Mpixels/sec
Radeon R9 M395X 23136 Mpixels/sec
Difference: 64 (0%)

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 5850

Amazon.com

Check prices at:

Radeon R9 M395X

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 5850 Radeon R9 M395X
Manufacturer AMD AMD
Year September 30, 2009 2015
Code Name Cypress PRO Tonga
Memory 1024 MB 4096 MB
Core Speed 725 MHz 723 MHz
Memory Speed 4000 MHz 5000 MHz
Power (Max TDP) 151 watts 125 watts
Bandwidth 128000 MB/sec 160000 MB/sec
Texel Rate 52200 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 23200 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 1440(288x5) 2048
Texture Mapping Units 72 128
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: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few 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 HD 5850

Amazon.com

Check prices at:

Radeon R9 M395X

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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