Radeon HD 5750 512MB vs Radeon R7 240

Intro

Compare those specifications to the Radeon R7 240, which comes with GPU core speed of 730 MHz, and 2048 MB of DDR3 memory running at 900 MHz through a 128-bit bus. It also features 320 Stream Processors, 20 TAUs, 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 512MB		86 Watts
	Difference: 56 Watts (187%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5750 512MB will be 156% faster than the Radeon R7 240 overall, because of its higher data rate. (explain)

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

Texel Rate

The Radeon HD 5750 512MB will be quite a bit (approximately 73%) more effective at anisotropic 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 a lot (about 92%) better at AA than the Radeon R7 240, and also capable of handling higher resolutions without slowing down too much. (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 max amount of data (measured in MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied 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 better the texel rate, the better the video 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 most pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.