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Radeon HD 3850 X2 vs Radeon R7 370 2G

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 particular card. It features 320(64x5) SPUs as well as 16 Texture Address Units and 16 Rasterization Operator Units.

Compare all of that to the Radeon R7 370 2G, which has core clock speeds of 975 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs along with 64 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R7 370 2G, in theory, should be a lot faster than the Radeon HD 3850 X2 overall. (explain)

Radeon R7 370 2G 179200 MB/sec
Radeon HD 3850 X2 105984 MB/sec
Difference: 73216 (69%)

Texel Rate

The Radeon R7 370 2G should be quite a bit (about 192%) more effective at anisotropic filtering than the Radeon HD 3850 X2. (explain)

Radeon R7 370 2G 62400 Mtexels/sec
Radeon HD 3850 X2 21376 Mtexels/sec
Difference: 41024 (192%)

Pixel Rate

The Radeon R7 370 2G is much (about 46%) more effective at AA than the Radeon HD 3850 X2, and also able to handle higher screen resolutions better. (explain)

Radeon R7 370 2G 31200 Mpixels/sec
Radeon HD 3850 X2 21376 Mpixels/sec
Difference: 9824 (46%)

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 370 2G

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 370 2G
Manufacturer AMD AMD
Year Apr 4, 2008 June 2015
Code Name RV670 PRO Trinidad
Memory 512 MB (x2) 2048 MB
Core Speed 668 MHz (x2) 975 MHz
Memory Speed 1656 MHz (x2) 5600 MHz
Power (Max TDP) (Unknown) watts 110 watts
Bandwidth 105984 MB/sec 179200 MB/sec
Texel Rate 21376 Mtexels/sec 62400 Mtexels/sec
Pixel Rate 21376 Mpixels/sec 31200 Mpixels/sec
Unified Shaders 320(64x5) (x2) 1024
Texture Mapping Units 16 (x2) 64
Render Output Units 16 (x2) 32
Bus Type GDDR3 GDDR5
Bus Width 256-bit (x2) 256-bit
Fab Process 55 nm 28 nm
Transistors (Unknown) million 2080 million
Bus PCIe 2.0 x16/(internal PCIe 1.1 x16) PCIe 3.0 ×16
DirectX Version DirectX 10.1 DirectX 12.0
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 can be processed in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 3850 X2

Amazon.com

Check prices at:

Radeon R7 370 2G

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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