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Radeon HD 5850 vs Radeon R9 M395X

Intro

The Radeon HD 5850 features a GPU core clock speed of 725 MHz, and the 1024 MB of GDDR5 RAM runs at 1000 MHz through a 256-bit bus. It also is made up of 1440(288x5) SPUs, 72 TAUs, and 32 Raster Operation Units.

Compare those specifications to the Radeon R9 M395X, which has GPU clock speed of 723 MHz, and 4096 MB of GDDR5 RAM running at 1250 MHz through a 256-bit bus. It also is made up of 2048 SPUs, 128 TAUs, and 32 ROPs.

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

Performance-wise, the Radeon R9 M395X should in theory be a lot superior to the Radeon HD 5850 in general. (explain)

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

Texel Rate

The Radeon R9 M395X will be much (more or less 77%) better at AF than the Radeon HD 5850. (explain)

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

Pixel Rate

The Radeon HD 5850 will be a bit (about 0%) more effective at full screen anti-aliasing than the Radeon R9 M395X, and able to handle higher screen resolutions without losing too much performance. (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 (measured in MB per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

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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