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Radeon HD 5850 vs Radeon R9 380X

Intro

The Radeon HD 5850 comes with core speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 1440(288x5) SPUs along with 72 Texture Address Units and 32 Rasterization Operator Units.

Compare those specs to the Radeon R9 380X, which features GPU clock speed of 970 MHz, and 4096 MB of GDDR5 memory set to run at 1425 MHz through a 256-bit bus. It also is made up of 2048 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5850 151 Watts
Radeon R9 380X 190 Watts
Difference: 39 Watts (26%)

Memory Bandwidth

The Radeon R9 380X, in theory, should perform quite a bit faster than the Radeon HD 5850 overall. (explain)

Radeon R9 380X 182400 MB/sec
Radeon HD 5850 128000 MB/sec
Difference: 54400 (43%)

Texel Rate

The Radeon R9 380X is much (approximately 138%) faster with regards to AF than the Radeon HD 5850. (explain)

Radeon R9 380X 124160 Mtexels/sec
Radeon HD 5850 52200 Mtexels/sec
Difference: 71960 (138%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 380X is the winner, by a large margin. (explain)

Radeon R9 380X 31040 Mpixels/sec
Radeon HD 5850 23200 Mpixels/sec
Difference: 7840 (34%)

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

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Radeon R9 380X

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 380X
Manufacturer AMD AMD
Year September 30, 2009 November 2015
Code Name Cypress PRO Tonga XT
Memory 1024 MB 4096 MB
Core Speed 725 MHz 970 MHz
Memory Speed 4000 MHz 5700 MHz
Power (Max TDP) 151 watts 190 watts
Bandwidth 128000 MB/sec 182400 MB/sec
Texel Rate 52200 Mtexels/sec 124160 Mtexels/sec
Pixel Rate 23200 Mpixels/sec 31040 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 5000 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 3.2 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better 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 maximum amount of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon HD 5850

Amazon.com

Check prices at:

Radeon R9 380X

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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