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Radeon HD 3850 X2 vs Radeon RX 460

Intro

The Radeon HD 3850 X2 makes use of a 55 nm design. AMD has clocked the core speed at 668 MHz. The GDDR3 RAM works at a frequency of 828 MHz on this model. It features 320(64x5) SPUs along with 16 TAUs and 16 ROPs.

Compare all of that to the Radeon RX 460, which has core speeds of 1090 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon RX 460 should be 6% faster than the Radeon HD 3850 X2 overall, due to its greater data rate. (explain)

Radeon RX 460 112000 MB/sec
Radeon HD 3850 X2 105984 MB/sec
Difference: 6016 (6%)

Texel Rate

The Radeon RX 460 is much (about 186%) faster with regards to texture filtering than the Radeon HD 3850 X2. (explain)

Radeon RX 460 61040 Mtexels/sec
Radeon HD 3850 X2 21376 Mtexels/sec
Difference: 39664 (186%)

Pixel Rate

The Radeon HD 3850 X2 is a lot (more or less 23%) faster with regards to anti-aliasing than the Radeon RX 460, and also will be capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 3850 X2 21376 Mpixels/sec
Radeon RX 460 17440 Mpixels/sec
Difference: 3936 (23%)

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

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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 3850 X2 Radeon RX 460
Manufacturer AMD AMD
Year Apr 4, 2008 August 2016
Code Name RV670 PRO Polaris 11
Memory 512 MB (x2) 4096 MB
Core Speed 668 MHz (x2) 1090 MHz
Memory Speed 1656 MHz (x2) 7000 MHz
Power (Max TDP) (Unknown) watts 75 watts
Bandwidth 105984 MB/sec 112000 MB/sec
Texel Rate 21376 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 21376 Mpixels/sec 17440 Mpixels/sec
Unified Shaders 320(64x5) (x2) 896
Texture Mapping Units 16 (x2) 56
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 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines 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 rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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Radeon HD 3850 X2

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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