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Radeon HD 3470 512MB vs Radeon R9 M275X

Intro

The Radeon HD 3470 512MB has clock speeds of 800 MHz on the GPU, and 950 MHz on the 512 MB of GDDR3 RAM. It features 40(8x5) SPUs along with 4 Texture Address Units and 4 Rasterization Operator Units.

Compare all that to the Radeon R9 M275X, which features a GPU core clock speed of 900 MHz, and 2048 MB of GDDR5 RAM running at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M275X should be 137% faster than the Radeon HD 3470 512MB in general, because of its greater data rate. (explain)

Radeon R9 M275X 72000 MB/sec
Radeon HD 3470 512MB 30400 MB/sec
Difference: 41600 (137%)

Texel Rate

The Radeon R9 M275X is a lot (more or less 1025%) better at anisotropic filtering than the Radeon HD 3470 512MB. (explain)

Radeon R9 M275X 36000 Mtexels/sec
Radeon HD 3470 512MB 3200 Mtexels/sec
Difference: 32800 (1025%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M275X is the winner, by a large margin. (explain)

Radeon R9 M275X 14400 Mpixels/sec
Radeon HD 3470 512MB 3200 Mpixels/sec
Difference: 11200 (350%)

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 3470 512MB

Amazon.com

Check prices at:

Radeon R9 M275X

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 3470 512MB Radeon R9 M275X
Manufacturer AMD AMD
Year 2008 May 1 2014
Code Name RV620 PRO Venus XTX
Memory 512 MB 2048 MB
Core Speed 800 MHz 900 MHz
Memory Speed 1900 MHz 4500 MHz
Power (Max TDP) (Unknown) watts 50 watts
Bandwidth 30400 MB/sec 72000 MB/sec
Texel Rate 3200 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 3200 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 40(8x5) 640
Texture Mapping Units 4 40
Render Output Units 4 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 55 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 2.0 x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 3470 512MB

Amazon.com

Check prices at:

Radeon R9 M275X

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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