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Radeon HD 4730 vs Radeon R9 M265X

Intro

The Radeon HD 4730 comes with a clock speed of 700 MHz and a GDDR5 memory speed of 900 MHz. It also features a 128-bit bus, and uses a 55 nm design. It is comprised of 640(128x5) SPUs, 32 TAUs, and 8 ROPs.

Compare all of that to the Radeon R9 M265X, which comes with a core clock speed of 575 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M265X, in theory, should perform a lot faster than the Radeon HD 4730 overall. (explain)

Radeon R9 M265X 72000 MB/sec
Radeon HD 4730 57600 MB/sec
Difference: 14400 (25%)

Texel Rate

The Radeon R9 M265X will be a bit (more or less 3%) more effective at anisotropic filtering than the Radeon HD 4730. (explain)

Radeon R9 M265X 23000 Mtexels/sec
Radeon HD 4730 22400 Mtexels/sec
Difference: 600 (3%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M265X is a better choice, and very much so. (explain)

Radeon R9 M265X 9200 Mpixels/sec
Radeon HD 4730 5600 Mpixels/sec
Difference: 3600 (64%)

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 M265X

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 M265X
Manufacturer AMD AMD
Year Jun 8, 2009 May 1 2014
Code Name RV770/CE Venus Pro
Memory 512 MB 2048 MB
Core Speed 700 MHz 575 MHz
Memory Speed 3600 MHz 4500 MHz
Power (Max TDP) 140 watts (Unknown) watts
Bandwidth 57600 MB/sec 72000 MB/sec
Texel Rate 22400 Mtexels/sec 23000 Mtexels/sec
Pixel Rate 5600 Mpixels/sec 9200 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: Bandwidth is the max amount of data (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video 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 maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon HD 4730

Amazon.com

Check prices at:

Radeon R9 M265X

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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