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Radeon HD 3850 X2 vs Radeon HD 6570 (OEM) 2GB

Intro

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

Compare those specs to the Radeon HD 6570 (OEM) 2GB, which has a core clock frequency of 650 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It is made up of 480 SPUs, 24 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon HD 3850 X2 should theoretically be quite a bit superior to the Radeon HD 6570 (OEM) 2GB overall. (explain)

Radeon HD 3850 X2 105984 MB/sec
Radeon HD 6570 (OEM) 2GB 64000 MB/sec
Difference: 41984 (66%)

Texel Rate

The Radeon HD 3850 X2 will be much (more or less 37%) better at texture filtering than the Radeon HD 6570 (OEM) 2GB. (explain)

Radeon HD 3850 X2 21376 Mtexels/sec
Radeon HD 6570 (OEM) 2GB 15600 Mtexels/sec
Difference: 5776 (37%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 3850 X2 is superior to the Radeon HD 6570 (OEM) 2GB, by far. (explain)

Radeon HD 3850 X2 21376 Mpixels/sec
Radeon HD 6570 (OEM) 2GB 5200 Mpixels/sec
Difference: 16176 (311%)

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 HD 6570 (OEM) 2GB

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 HD 6570 (OEM) 2GB
Manufacturer AMD AMD
Year Apr 4, 2008 February 2011
Code Name RV670 PRO Turks
Memory 512 MB (x2) 1024 MB
Core Speed 668 MHz (x2) 650 MHz
Memory Speed 1656 MHz (x2) 4000 MHz
Power (Max TDP) (Unknown) watts 50 watts
Bandwidth 105984 MB/sec 64000 MB/sec
Texel Rate 21376 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 21376 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 320(64x5) (x2) 480
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 40 nm
Transistors (Unknown) million 715 million
Bus PCIe 2.0 x16/(internal PCIe 1.1 x16) PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the video 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 card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 3850 X2

Amazon.com

Check prices at:

Radeon HD 6570 (OEM) 2GB

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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