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Radeon HD 5850 vs Radeon RX 460

Intro

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

Compare those specifications to the Radeon RX 460, which has GPU clock speed of 1090 MHz, and 4096 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also features 896 SPUs, 56 Texture Address Units, 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

Theoretically, the Radeon HD 5850 should perform a small bit faster than 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 should be a bit (about 17%) faster with regards to anisotropic 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 should be quite a bit (about 33%) faster with regards to AA than the Radeon RX 460, and should be capable of handling higher screen resolutions more effectively. (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

Check prices at:

Radeon RX 460

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 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 information (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per 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 better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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Radeon HD 5850

Amazon.com

Check prices at:

Radeon RX 460

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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