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Radeon HD 4730 vs Radeon R9 M275X

Intro

The Radeon HD 4730 features a GPU core speed of 700 MHz, and the 512 MB of GDDR5 RAM is set to run at 900 MHz through a 128-bit bus. It also is made up of 640(128x5) Stream Processors, 32 TAUs, and 8 ROPs.

Compare all of that to the Radeon R9 M275X, which makes use of a 28 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 RAM runs at a speed of 1125 MHz on this model. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X 50 Watts
Radeon HD 4730 140 Watts
Difference: 90 Watts (180%)

Memory Bandwidth

Theoretically, the Radeon R9 M275X should perform quite a bit faster than the Radeon HD 4730 in general. (explain)

Radeon R9 M275X 72000 MB/sec
Radeon HD 4730 57600 MB/sec
Difference: 14400 (25%)

Texel Rate

The Radeon R9 M275X is much (more or less 61%) faster with regards to anisotropic filtering than the Radeon HD 4730. (explain)

Radeon R9 M275X 36000 Mtexels/sec
Radeon HD 4730 22400 Mtexels/sec
Difference: 13600 (61%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 M275X is a better choice, by a large margin. (explain)

Radeon R9 M275X 14400 Mpixels/sec
Radeon HD 4730 5600 Mpixels/sec
Difference: 8800 (157%)

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

Check prices at:

Radeon R9 M275X

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 M275X
Manufacturer AMD AMD
Year Jun 8, 2009 May 1 2014
Code Name RV770/CE Venus XTX
Memory 512 MB 2048 MB
Core Speed 700 MHz 900 MHz
Memory Speed 3600 MHz 4500 MHz
Power (Max TDP) 140 watts 50 watts
Bandwidth 57600 MB/sec 72000 MB/sec
Texel Rate 22400 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 5600 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 640(128x5) 640
Texture Mapping Units 32 40
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 55 nm 28 nm
Transistors 956 million (Unknown) million
Bus PCIe 2.0 x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 are applied in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 4730

Amazon.com

Check prices at:

Radeon R9 M275X

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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