Radeon HD 6750 1GB vs Radeon R7 240

Intro

Compare those specs to the Radeon R7 240, which comes with core speeds of 730 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 memory. It features 320 SPUs as well as 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon HD 6750 1GB		86 Watts
	Difference: 56 Watts (187%)

Memory Bandwidth

Performance-wise, the Radeon HD 6750 1GB should in theory be much better than the Radeon R7 240 in general. (explain)

Radeon HD 6750 1GB		64000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 35200 (122%)

Texel Rate

The Radeon HD 6750 1GB will be a lot (approximately 79%) faster with regards to AF than the Radeon R7 240. (explain)

Radeon HD 6750 1GB		26100 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 11500 (79%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6750 1GB is a better choice, by a large margin. (explain)

Radeon HD 6750 1GB		11600 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 5760 (99%)

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 megabytes per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.