Radeon HD 5750 512MB vs Radeon R7 240

Intro

Compare those specifications to the Radeon R7 240, which features a core clock frequency of 730 MHz and a DDR3 memory speed of 900 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is made up of 320 SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon HD 5750 512MB		86 Watts
	Difference: 56 Watts (187%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5750 512MB should perform quite a bit faster than the Radeon R7 240 overall. (explain)

Radeon HD 5750 512MB		73600 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 44800 (156%)

Texel Rate

The Radeon HD 5750 512MB is quite a bit (more or less 73%) more effective at texture filtering than the Radeon R7 240. (explain)

Radeon HD 5750 512MB		25200 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 10600 (73%)

Pixel Rate

The Radeon HD 5750 512MB will be quite a bit (more or less 92%) more effective at anti-aliasing than the Radeon R7 240, and able to handle higher resolutions better. (explain)

Radeon HD 5750 512MB		11200 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 5360 (92%)

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

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.