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Radeon HD 4670 1GB vs Radeon R9 380 2G

Intro

The Radeon HD 4670 1GB uses a 55 nm design. AMD has set the core frequency at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 memory works at a speed of 1100 MHz on this model. It features 320(64x5) SPUs along with 32 Texture Address Units and 8 ROPs.

Compare that to the Radeon R9 380 2G, which has GPU core speed of 970 MHz, and 2048 MB of GDDR5 memory set to run at 1425 MHz through a 256-bit bus. It also is made up of 1792 SPUs, 112 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB 70 Watts
Radeon R9 380 2G 190 Watts
Difference: 120 Watts (171%)

Memory Bandwidth

As far as performance goes, the Radeon R9 380 2G should in theory be quite a bit superior to the Radeon HD 4670 1GB overall. (explain)

Radeon R9 380 2G 182400 MB/sec
Radeon HD 4670 1GB 35200 MB/sec
Difference: 147200 (418%)

Texel Rate

The Radeon R9 380 2G should be much (about 353%) better at texture filtering than the Radeon HD 4670 1GB. (explain)

Radeon R9 380 2G 108640 Mtexels/sec
Radeon HD 4670 1GB 24000 Mtexels/sec
Difference: 84640 (353%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 380 2G is superior to the Radeon HD 4670 1GB, by a large margin. (explain)

Radeon R9 380 2G 31040 Mpixels/sec
Radeon HD 4670 1GB 6000 Mpixels/sec
Difference: 25040 (417%)

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 1GB

Amazon.com

Check prices at:

Radeon R9 380 2G

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 1GB Radeon R9 380 2G
Manufacturer AMD AMD
Year Sep 10, 2008 June 2015
Code Name RV730 XT Antigua PRO
Memory 1024 MB 2048 MB
Core Speed 750 MHz 970 MHz
Memory Speed 2200 MHz 5700 MHz
Power (Max TDP) 70 watts 190 watts
Bandwidth 35200 MB/sec 182400 MB/sec
Texel Rate 24000 Mtexels/sec 108640 Mtexels/sec
Pixel Rate 6000 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 320(64x5) 1792
Texture Mapping Units 32 112
Render Output Units 8 32
Bus Type GDDR4/GDDR3/DDR3/DDR2 GDDR5
Bus Width 128-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 514 million 5000 million
Bus PCIe 2.0 x16, AGP 8x PCIe 3.0 ×16
DirectX Version DirectX 10.1 DirectX 12.0
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 max fill rate.

Display Prices

Hide Prices

Radeon HD 4670 1GB

Amazon.com

Check prices at:

Radeon R9 380 2G

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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