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Radeon HD 7750 vs Radeon R7 240

Intro

The Radeon HD 7750 comes with a clock frequency of 800 MHz and a GDDR5 memory speed of 1125 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is comprised of 512 SPUs, 32 TAUs, and 16 ROPs.

Compare those specs to the Radeon R7 240, which uses a 28 nm design. AMD has clocked the core speed at 730 MHz. The DDR3 RAM works at a speed of 900 MHz on this specific model. It features 320 SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240 30 Watts
Radeon HD 7750 55 Watts
Difference: 25 Watts (83%)

Memory Bandwidth

The Radeon HD 7750 should in theory perform a lot faster than the Radeon R7 240 in general. (explain)

Radeon HD 7750 72000 MB/sec
Radeon R7 240 28800 MB/sec
Difference: 43200 (150%)

Texel Rate

The Radeon HD 7750 should be quite a bit (approximately 75%) better at anisotropic filtering than the Radeon R7 240. (explain)

Radeon HD 7750 25600 Mtexels/sec
Radeon R7 240 14600 Mtexels/sec
Difference: 11000 (75%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 7750 is superior to the Radeon R7 240, and very much so. (explain)

Radeon HD 7750 12800 Mpixels/sec
Radeon R7 240 5840 Mpixels/sec
Difference: 6960 (119%)

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

Radeon HD 7750

Amazon.com

Radeon R7 240

Amazon.com

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

Model Radeon HD 7750 Radeon R7 240
Manufacturer AMD AMD
Year February 2012 October 2013
Code Name Cape Verde Pro Oland PRO
Fab Process 28 nm 28 nm
Bus PCIe 3.0 x16 PCIe 3.0 x16
Memory 1024 MB 2048 MB
Core Speed 800 MHz 730 MHz
Shader Speed N/A MHz (N/A) MHz
Memory Speed 1125 MHz (4500 MHz effective) 900 MHz (1800 MHz effective)
Unified Shaders 512 320
Texture Mapping Units 32 20
Render Output Units 16 8
Bus Type GDDR5 DDR3
Bus Width 128-bit 128-bit
DirectX Version DirectX 11.1 DirectX 11.2
OpenGL Version OpenGL 4.2 OpenGL 4.3
Power (Max TDP) 55 watts 30 watts
Shader Model 5.0 5.0
Bandwidth 72000 MB/sec 28800 MB/sec
Texel Rate 25600 Mtexels/sec 14600 Mtexels/sec
Pixel Rate 12800 Mpixels/sec 5840 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock 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 rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

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