Radeon HD 6750 1GB vs Radeon R7 M265

Intro

Compare all that to the Radeon R7 M265, which features a clock frequency of 725 MHz and a DDR3 memory speed of 1000 MHz. It also features a 128-bit bus, and uses a 28 nm design. It features 384 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 6750 1GB will be 100% quicker than the Radeon R7 M265 overall, due to its greater bandwidth. (explain)

Radeon HD 6750 1GB		64000 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 32000 (100%)

Texel Rate

The Radeon HD 6750 1GB should be quite a bit (more or less 50%) more effective at texture filtering than the Radeon R7 M265. (explain)

Radeon HD 6750 1GB		26100 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 8700 (50%)

Pixel Rate

The Radeon HD 6750 1GB will be quite a bit (approximately 100%) better at anti-aliasing than the Radeon R7 M265, and should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon HD 6750 1GB		11600 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 5800 (100%)

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 information (counted in megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high 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 number of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. 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 many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.