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Radeon HD 4730 vs Radeon R9 380 4G

Intro

The Radeon HD 4730 has a clock speed of 700 MHz and a GDDR5 memory frequency of 900 MHz. It also makes use of a 128-bit bus, and makes use of a 55 nm design. It features 640(128x5) SPUs, 32 TAUs, and 8 ROPs.

Compare those specifications to the Radeon R9 380 4G, which comes with GPU clock speed of 970 MHz, and 4096 MB of GDDR5 memory set to run at 1425 MHz through a 256-bit bus. It also is made up of 1792 SPUs, 112 Texture Address Units, and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4730 140 Watts
Radeon R9 380 4G 190 Watts
Difference: 50 Watts (36%)

Memory Bandwidth

Performance-wise, the Radeon R9 380 4G should in theory be much better than the Radeon HD 4730 overall. (explain)

Radeon R9 380 4G 182400 MB/sec
Radeon HD 4730 57600 MB/sec
Difference: 124800 (217%)

Texel Rate

The Radeon R9 380 4G will be quite a bit (more or less 385%) faster with regards to AF than the Radeon HD 4730. (explain)

Radeon R9 380 4G 108640 Mtexels/sec
Radeon HD 4730 22400 Mtexels/sec
Difference: 86240 (385%)

Pixel Rate

The Radeon R9 380 4G will be much (approximately 454%) faster with regards to full screen anti-aliasing than the Radeon HD 4730, and should be capable of handling higher resolutions without losing too much performance. (explain)

Radeon R9 380 4G 31040 Mpixels/sec
Radeon HD 4730 5600 Mpixels/sec
Difference: 25440 (454%)

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 4730

Amazon.com

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Radeon R9 380 4G

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 4730 Radeon R9 380 4G
Manufacturer AMD AMD
Year Jun 8, 2009 June 2015
Code Name RV770/CE Antigua PRO
Memory 512 MB 4096 MB
Core Speed 700 MHz 970 MHz
Memory Speed 3600 MHz 5700 MHz
Power (Max TDP) 140 watts 190 watts
Bandwidth 57600 MB/sec 182400 MB/sec
Texel Rate 22400 Mtexels/sec 108640 Mtexels/sec
Pixel Rate 5600 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 640(128x5) 1792
Texture Mapping Units 32 112
Render Output Units 8 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 956 million 5000 million
Bus PCIe 2.0 x16 PCIe 3.0 ×16
DirectX Version DirectX 10.1 DirectX 12.0
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 figure is calculated by multiplying the total amount of texture units 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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Radeon HD 4730

Amazon.com

Check prices at:

Radeon R9 380 4G

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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