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Radeon HD 5850 vs Radeon RX 460


Intro

The Radeon HD 5850 uses a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this particular card. It features 1440(288x5) SPUs along with 72 Texture Address Units and 32 Rasterization Operator Units.

Compare those specifications to the Radeon RX 460, which comes with a core clock frequency of 1090 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 128-bit memory bus, and makes use of a 14 nm design. It is comprised of 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 75 Watts
Radeon HD 5850 151 Watts
Difference: 76 Watts (101%)

Memory Bandwidth

In theory, the Radeon HD 5850 will be 14% quicker than the Radeon RX 460 overall, because of its higher data rate. (explain)

Radeon HD 5850 128000 MB/sec
Radeon RX 460 112000 MB/sec
Difference: 16000 (14%)

Texel Rate

The Radeon RX 460 will be a bit (approximately 17%) better at AF than the Radeon HD 5850. (explain)

Radeon RX 460 61040 Mtexels/sec
Radeon HD 5850 52200 Mtexels/sec
Difference: 8840 (17%)

Pixel Rate

The Radeon HD 5850 should be a lot (about 33%) more effective at AA than the Radeon RX 460, and also will be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 5850 23200 Mpixels/sec
Radeon RX 460 17440 Mpixels/sec
Difference: 5760 (33%)

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

Radeon RX 460

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 HD 5850 Radeon RX 460
Manufacturer AMD AMD
Year September 30, 2009 August 2016
Code Name Cypress PRO Polaris 11
Memory 1024 MB 4096 MB
Core Speed 725 MHz 1090 MHz
Memory Speed 4000 MHz 7000 MHz
Power (Max TDP) 151 watts 75 watts
Bandwidth 128000 MB/sec 112000 MB/sec
Texel Rate 52200 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 23200 Mpixels/sec 17440 Mpixels/sec
Unified Shaders 1440(288x5) 896
Texture Mapping Units 72 56
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 40 nm 14 nm
Transistors 2154 million 3000 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 data (counted in megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its 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 - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 5850

Amazon.com

Radeon RX 460

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.

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