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Radeon HD 3850 X2 vs Radeon R7 M260X

Intro

The Radeon HD 3850 X2 has a GPU core clock speed of 668 MHz, and the 512 MB of GDDR3 RAM runs at 828 MHz through a 256-bit bus. It also features 320(64x5) SPUs, 16 Texture Address Units, and 16 ROPs.

Compare that to the Radeon R7 M260X, which makes use of a 28 nm design. AMD has set the core frequency at 825 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this specific card. It features 384 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon HD 3850 X2 should perform a lot faster than the Radeon R7 M260X in general. (explain)

Radeon HD 3850 X2 105984 MB/sec
Radeon R7 M260X 64000 MB/sec
Difference: 41984 (66%)

Texel Rate

The Radeon HD 3850 X2 should be just a bit (more or less 8%) better at anisotropic filtering than the Radeon R7 M260X. (explain)

Radeon HD 3850 X2 21376 Mtexels/sec
Radeon R7 M260X 19800 Mtexels/sec
Difference: 1576 (8%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 3850 X2 is a better choice, by a large margin. (explain)

Radeon HD 3850 X2 21376 Mpixels/sec
Radeon R7 M260X 6600 Mpixels/sec
Difference: 14776 (224%)

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 R7 M260X

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 R7 M260X
Manufacturer AMD AMD
Year Apr 4, 2008 June 2014
Code Name RV670 PRO Opal
Memory 512 MB (x2) 2048 MB
Core Speed 668 MHz (x2) 825 MHz
Memory Speed 1656 MHz (x2) 4000 MHz
Power (Max TDP) (Unknown) watts (Unknown) watts
Bandwidth 105984 MB/sec 64000 MB/sec
Texel Rate 21376 Mtexels/sec 19800 Mtexels/sec
Pixel Rate 21376 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 320(64x5) (x2) 384
Texture Mapping Units 16 (x2) 24
Render Output Units 16 (x2) 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit (x2) 128-bit
Fab Process 55 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 2.0 x16/(internal PCIe 1.1 x16) PCIe 3.0 x8
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 3850 X2

Amazon.com

Check prices at:

Radeon R7 M260X

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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