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Radeon HD 3850 X2 vs Radeon RX 560

Intro

The Radeon HD 3850 X2 features clock speeds of 668 MHz on the GPU, and 828 MHz on the 512 MB of GDDR3 memory. It features 320(64x5) SPUs as well as 16 Texture Address Units and 16 ROPs.

Compare that to the Radeon RX 560, which has a core clock speed of 1175 MHz and a GDDR5 memory frequency of 7000 MHz. It also makes use of a 128-bit bus, and makes use of a 14 nm design. It features 1024 SPUs, 64 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon RX 560 should in theory perform a little bit faster than the Radeon HD 3850 X2 in general. (explain)

Radeon RX 560 114688 MB/sec
Radeon HD 3850 X2 105984 MB/sec
Difference: 8704 (8%)

Texel Rate

The Radeon RX 560 is quite a bit (more or less 252%) more effective at AF than the Radeon HD 3850 X2. (explain)

Radeon RX 560 75200 Mtexels/sec
Radeon HD 3850 X2 21376 Mtexels/sec
Difference: 53824 (252%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 3850 X2 is superior to the Radeon RX 560, not by a very large margin though. (explain)

Radeon HD 3850 X2 21376 Mpixels/sec
Radeon RX 560 18800 Mpixels/sec
Difference: 2576 (14%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Radeon HD 3850 X2

Amazon.com

Check prices at:

Radeon RX 560

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 3850 X2 Radeon RX 560
Manufacturer AMD AMD
Year Apr 4, 2008 May 2017
Code Name RV670 PRO Baffin
Memory 512 MB (x2) 4096 MB
Core Speed 668 MHz (x2) 1175 MHz
Memory Speed 1656 MHz (x2) 28000 MHz
Power (Max TDP) (Unknown) watts 80 watts
Bandwidth 105984 MB/sec 114688 MB/sec
Texel Rate 21376 Mtexels/sec 75200 Mtexels/sec
Pixel Rate 21376 Mpixels/sec 18800 Mpixels/sec
Unified Shaders 320(64x5) (x2) 1024
Texture Mapping Units 16 (x2) 64
Render Output Units 16 (x2) 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit (x2) 128-bit
Fab Process 55 nm 14 nm
Transistors (Unknown) million 3000 million
Bus PCIe 2.0 x16/(internal PCIe 1.1 x16) PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 12.0
OpenGL Version OpenGL 3.0 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of 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 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 a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. 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 quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon HD 3850 X2

Amazon.com

Check prices at:

Radeon RX 560

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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