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Radeon HD 5850 vs Radeon RX 460


Intro

The Radeon HD 5850 has core speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 1440(288x5) SPUs as well as 72 TAUs and 32 ROPs.

Compare all that to the Radeon RX 460, which comes with GPU core speed of 1090 MHz, and 4096 MB of GDDR5 RAM set to run at 1750 MHz through a 128-bit bus. It also features 896 SPUs, 56 TAUs, and 16 ROPs.

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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

Performance-wise, the Radeon HD 5850 should in theory be a small bit superior to the Radeon RX 460 overall. (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 little bit (about 17%) more effective at texture filtering 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 is much (approximately 33%) more effective at FSAA than the Radeon RX 460, and also should be capable of handling higher resolutions without slowing down too much. (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: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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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.

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