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Radeon HD 3850 512MB vs Radeon R9 M365X

Intro

The Radeon HD 3850 512MB uses a 55 nm design. AMD has clocked the core frequency at 668 MHz. The GDDR3 memory runs at a speed of 828 MHz on this particular card. It features 320(64x5) SPUs along with 16 Texture Address Units and 16 ROPs.

Compare all that to the Radeon R9 M365X, which comes with a clock frequency of 925 MHz and a GDDR5 memory frequency of 1125 MHz. It also makes use of a 128-bit memory bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R9 M365X should theoretically be a lot better than the Radeon HD 3850 512MB overall. (explain)

Radeon R9 M365X 72000 MB/sec
Radeon HD 3850 512MB 52992 MB/sec
Difference: 19008 (36%)

Texel Rate

The Radeon R9 M365X should be a lot (more or less 246%) better at anisotropic filtering than the Radeon HD 3850 512MB. (explain)

Radeon R9 M365X 37000 Mtexels/sec
Radeon HD 3850 512MB 10688 Mtexels/sec
Difference: 26312 (246%)

Pixel Rate

The Radeon R9 M365X is quite a bit (approximately 38%) faster with regards to AA than the Radeon HD 3850 512MB, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R9 M365X 14800 Mpixels/sec
Radeon HD 3850 512MB 10688 Mpixels/sec
Difference: 4112 (38%)

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.

Price Comparison

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Radeon HD 3850 512MB

Amazon.com

Check prices at:

Radeon R9 M365X

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 512MB Radeon R9 M365X
Manufacturer AMD AMD
Year Nov 19, 2007 2015
Code Name RV670 PRO Cape Verde
Memory 512 MB 4096 MB
Core Speed 668 MHz 925 MHz
Memory Speed 1656 MHz 4500 MHz
Power (Max TDP) 75 watts (Unknown) watts
Bandwidth 52992 MB/sec 72000 MB/sec
Texel Rate 10688 Mtexels/sec 37000 Mtexels/sec
Pixel Rate 10688 Mpixels/sec 14800 Mpixels/sec
Unified Shaders 320(64x5) 640
Texture Mapping Units 16 40
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 55 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 2.0 x16/AGP 8x PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 12
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (counted in megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. 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 output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 3850 512MB

Amazon.com

Check prices at:

Radeon R9 M365X

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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