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Radeon HD 3850 256MB vs Radeon R7 M260X

Intro

The Radeon HD 3850 256MB has a clock speed of 668 MHz and a GDDR3 memory frequency of 828 MHz. It also features a 256-bit memory bus, and uses a 55 nm design. It features 320(64x5) SPUs, 16 Texture Address Units, and 16 Raster Operation Units.

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R7 M260X should perform quite a bit faster than the Radeon HD 3850 256MB overall. (explain)

Radeon R7 M260X 64000 MB/sec
Radeon HD 3850 256MB 52992 MB/sec
Difference: 11008 (21%)

Texel Rate

The Radeon R7 M260X is a lot (approximately 85%) more effective at texture filtering than the Radeon HD 3850 256MB. (explain)

Radeon R7 M260X 19800 Mtexels/sec
Radeon HD 3850 256MB 10688 Mtexels/sec
Difference: 9112 (85%)

Pixel Rate

The Radeon HD 3850 256MB should be quite a bit (more or less 62%) faster with regards to FSAA than the Radeon R7 M260X, and also will be capable of handling higher resolutions better. (explain)

Radeon HD 3850 256MB 10688 Mpixels/sec
Radeon R7 M260X 6600 Mpixels/sec
Difference: 4088 (62%)

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 256MB

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 256MB Radeon R7 M260X
Manufacturer AMD AMD
Year Nov 19, 2007 June 2014
Code Name RV670 PRO Opal
Memory 256 MB 2048 MB
Core Speed 668 MHz 825 MHz
Memory Speed 1656 MHz 4000 MHz
Power (Max TDP) 75 watts (Unknown) watts
Bandwidth 52992 MB/sec 64000 MB/sec
Texel Rate 10688 Mtexels/sec 19800 Mtexels/sec
Pixel Rate 10688 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 320(64x5) 384
Texture Mapping Units 16 24
Render Output Units 16 8
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 x8
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics 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 amount of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines 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 rate also depends on lots of 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 256MB

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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