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Radeon HD 4670 512MB vs Radeon R9 M375

Intro

The Radeon HD 4670 512MB features a GPU core clock speed of 750 MHz, and the 512 MB of GDDR4/GDDR3/DDR3/DDR2 RAM is set to run at 1000 MHz through a 128-bit bus. It also is comprised of 320(64x5) Stream Processors, 32 Texture Address Units, and 8 ROPs.

Compare all that to the Radeon R9 M375, which comes with core speeds of 1015 MHz on the GPU, and 1100 MHz on the 4096 MB of DDR3 RAM. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M375 should be 10% faster than the Radeon HD 4670 512MB overall, due to its higher bandwidth. (explain)

Radeon R9 M375 35200 MB/sec
Radeon HD 4670 512MB 32000 MB/sec
Difference: 3200 (10%)

Texel Rate

The Radeon R9 M375 should be quite a bit (more or less 69%) better at texture filtering than the Radeon HD 4670 512MB. (explain)

Radeon R9 M375 40600 Mtexels/sec
Radeon HD 4670 512MB 24000 Mtexels/sec
Difference: 16600 (69%)

Pixel Rate

The Radeon R9 M375 will be a lot (approximately 171%) better at anti-aliasing than the Radeon HD 4670 512MB, and will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R9 M375 16240 Mpixels/sec
Radeon HD 4670 512MB 6000 Mpixels/sec
Difference: 10240 (171%)

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 4670 512MB

Amazon.com

Check prices at:

Radeon R9 M375

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 4670 512MB Radeon R9 M375
Manufacturer AMD AMD
Year Sep 10, 2008 2015
Code Name RV730 XT Cape Verde
Memory 512 MB 4096 MB
Core Speed 750 MHz 1015 MHz
Memory Speed 2000 MHz 2200 MHz
Power (Max TDP) 70 watts (Unknown) watts
Bandwidth 32000 MB/sec 35200 MB/sec
Texel Rate 24000 Mtexels/sec 40600 Mtexels/sec
Pixel Rate 6000 Mpixels/sec 16240 Mpixels/sec
Unified Shaders 320(64x5) 640
Texture Mapping Units 32 40
Render Output Units 8 16
Bus Type GDDR4/GDDR3/DDR3/DDR2 DDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 28 nm
Transistors 514 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 maximum amount of data (measured in megabytes per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's 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 texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4670 512MB

Amazon.com

Check prices at:

Radeon R9 M375

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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