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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 clocked the core speed at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 RAM is set to run at a speed of 1100 MHz on this specific card. It features 320(64x5) SPUs along with 32 Texture Address Units and 8 ROPs.

Compare that to the Radeon R9 380 2G, which features GPU clock speed of 970 MHz, and 2048 MB of GDDR5 memory set to run at 1425 MHz through a 256-bit bus. It also is comprised of 1792 Stream Processors, 112 Texture Address Units, 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

Theoretically speaking, the Radeon R9 380 2G should perform quite a bit faster than the Radeon HD 4670 1GB in general. (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 (more or less 353%) more effective 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

The Radeon R9 380 2G should be quite a bit (about 417%) faster with regards to AA than the Radeon HD 4670 1GB, and also will be capable of handling higher resolutions better. (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 maximum amount of data (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability 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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