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Radeon HD 4750 vs Radeon R7 M260X

Intro

The Radeon HD 4750 has a GPU core clock speed of 730 MHz, and the 512 MB of GDDR5 memory is set to run at 800 MHz through a 128-bit bus. It also is comprised of 640(128x5) SPUs, 32 Texture Address Units, and 16 ROPs.

Compare all that to the Radeon R7 M260X, which has a core clock speed of 825 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is made up of 384 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 M260X should be much faster than the Radeon HD 4750 in general. (explain)

Radeon R7 M260X 64000 MB/sec
Radeon HD 4750 51200 MB/sec
Difference: 12800 (25%)

Texel Rate

The Radeon HD 4750 is a little bit (more or less 18%) faster with regards to anisotropic filtering than the Radeon R7 M260X. (explain)

Radeon HD 4750 23360 Mtexels/sec
Radeon R7 M260X 19800 Mtexels/sec
Difference: 3560 (18%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 4750 is the winner, by far. (explain)

Radeon HD 4750 11680 Mpixels/sec
Radeon R7 M260X 6600 Mpixels/sec
Difference: 5080 (77%)

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 4750

Amazon.com

Check prices at:

Radeon R7 M260X

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 4750 Radeon R7 M260X
Manufacturer AMD AMD
Year June 2014
Code Name RV740 Opal
Memory 512 MB 2048 MB
Core Speed 730 MHz 825 MHz
Memory Speed 3200 MHz 4000 MHz
Power (Max TDP) 75 watts (Unknown) watts
Bandwidth 51200 MB/sec 64000 MB/sec
Texel Rate 23360 Mtexels/sec 19800 Mtexels/sec
Pixel Rate 11680 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 640(128x5) 384
Texture Mapping Units 32 24
Render Output Units 16 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 826 million (Unknown) million
Bus PCIe 2.0 x16 PCIe 3.0 x8
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units of the card 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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Radeon HD 4750

Amazon.com

Check prices at:

Radeon R7 M260X

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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