Radeon HD 5750 1GB vs Radeon R7 240

Intro

Compare all of that to the Radeon R7 240, which has a GPU core clock speed of 730 MHz, and 2048 MB of DDR3 RAM running at 900 MHz through a 128-bit bus. It also is comprised of 320 SPUs, 20 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon HD 5750 1GB		86 Watts
	Difference: 56 Watts (187%)

Memory Bandwidth

In theory, the Radeon HD 5750 1GB should be a lot faster than the Radeon R7 240 in general. (explain)

Radeon HD 5750 1GB		73600 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 44800 (156%)

Texel Rate

The Radeon HD 5750 1GB is much (approximately 73%) better at texture filtering than the Radeon R7 240. (explain)

Radeon HD 5750 1GB		25200 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 10600 (73%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 5750 1GB is superior to the Radeon R7 240, by a large margin. (explain)

Radeon HD 5750 1GB		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: Memory bandwidth is the max amount of data (in units of MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR 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 number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per 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. The number is calculated by multiplying the amount of ROPs by the the card's 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 also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.