Radeon HD 5750 1GB vs Radeon R7 240

Intro

Compare those specs to the Radeon R7 240, which features GPU core speed of 730 MHz, and 2048 MB of DDR3 memory set to run at 900 MHz through a 128-bit bus. It also features 320 Stream Processors, 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 1GB		86 Watts
	Difference: 56 Watts (187%)

Memory Bandwidth

In theory, the Radeon HD 5750 1GB will be 156% quicker than the Radeon R7 240 overall, due to its higher data rate. (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 a lot (approximately 73%) faster with regards to 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

The Radeon HD 5750 1GB should be much (approximately 92%) faster with regards to full screen anti-aliasing than the Radeon R7 240, and also capable of handling higher resolutions more effectively. (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 information (counted in MB per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the 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 amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.