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Radeon HD 4670 512MB vs Radeon R9 M375

Intro

The Radeon HD 4670 512MB has core speeds of 750 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR4/GDDR3/DDR3/DDR2 memory. It features 320(64x5) SPUs as well as 32 TAUs and 8 ROPs.

Compare all of that to the Radeon R9 M375, which features a GPU core clock speed of 1015 MHz, and 4096 MB of DDR3 RAM set to run at 1100 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M375 should in theory perform a small bit faster than the Radeon HD 4670 512MB overall. (explain)

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

Texel Rate

The Radeon R9 M375 will be much (more or less 69%) better at anisotropic 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

If using high levels of AA is important to you, then the Radeon R9 M375 is a better choice, and very much so. (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: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential 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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