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Radeon HD 7750 vs Radeon R9 M265X

Intro

The Radeon HD 7750 makes use of a 28 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 memory is set to run at a speed of 1125 MHz on this specific card. It features 512 SPUs as well as 32 TAUs and 16 ROPs.

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have the exact same bandwidth, so theoretically they should perform the same. (explain)

Texel Rate

The Radeon HD 7750 will be a bit (more or less 11%) more effective at AF than the Radeon R9 M265X. (explain)

Radeon HD 7750 25600 Mtexels/sec
Radeon R9 M265X 23000 Mtexels/sec
Difference: 2600 (11%)

Pixel Rate

The Radeon HD 7750 is much (about 39%) better at anti-aliasing than the Radeon R9 M265X, and will be capable of handling higher resolutions while still performing well. (explain)

Radeon HD 7750 12800 Mpixels/sec
Radeon R9 M265X 9200 Mpixels/sec
Difference: 3600 (39%)

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 7750

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 7750 Radeon R9 M265X
Manufacturer AMD AMD
Year February 2012 May 1 2014
Code Name Cape Verde Pro Venus Pro
Memory 1024 MB 2048 MB
Core Speed 800 MHz 575 MHz
Memory Speed 4500 MHz 4500 MHz
Power (Max TDP) 55 watts (Unknown) watts
Bandwidth 72000 MB/sec 72000 MB/sec
Texel Rate 25600 Mtexels/sec 23000 Mtexels/sec
Pixel Rate 12800 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 512 640
Texture Mapping Units 32 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 1500 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 11.2
OpenGL Version OpenGL 4.2 OpenGL 4.3

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 7750

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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