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Radeon HD 4670 512MB vs Radeon R9 M380

Intro

The Radeon HD 4670 512MB makes use of a 55 nm design. AMD has clocked the core speed at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 RAM works at a frequency of 1000 MHz on this specific model. It features 320(64x5) SPUs along with 32 Texture Address Units and 8 Rasterization Operator Units.

Compare all of that to the Radeon R9 M380, which makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this specific model. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 M380 should theoretically be quite a bit better than the Radeon HD 4670 512MB overall. (explain)

Radeon R9 M380 96000 MB/sec
Radeon HD 4670 512MB 32000 MB/sec
Difference: 64000 (200%)

Texel Rate

The Radeon R9 M380 should be much (about 67%) better at anisotropic filtering than the Radeon HD 4670 512MB. (explain)

Radeon R9 M380 40000 Mtexels/sec
Radeon HD 4670 512MB 24000 Mtexels/sec
Difference: 16000 (67%)

Pixel Rate

The Radeon R9 M380 will be much (more or less 167%) better at anti-aliasing than the Radeon HD 4670 512MB, and also capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R9 M380 16000 Mpixels/sec
Radeon HD 4670 512MB 6000 Mpixels/sec
Difference: 10000 (167%)

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 M380

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 M380
Manufacturer AMD AMD
Year Sep 10, 2008 2015
Code Name RV730 XT Cape Verde
Memory 512 MB 4096 MB
Core Speed 750 MHz 1000 MHz
Memory Speed 2000 MHz 6000 MHz
Power (Max TDP) 70 watts (Unknown) watts
Bandwidth 32000 MB/sec 96000 MB/sec
Texel Rate 24000 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 6000 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 320(64x5) 640
Texture Mapping Units 32 40
Render Output Units 8 16
Bus Type GDDR4/GDDR3/DDR3/DDR2 GDDR5
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 largest amount of data (counted in MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling 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 that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4670 512MB

Amazon.com

Check prices at:

Radeon R9 M380

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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