Radeon HD 6750 vs Radeon RX 550

Intro

Compare all of that to the Radeon RX 550, which features GPU core speed of 1100 MHz, and 2048 MB of GDDR5 memory running at 1750 MHz through a 128-bit bus. It also features 512 Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon HD 6750		86 Watts
	Difference: 36 Watts (72%)

Memory Bandwidth

Theoretically, the Radeon RX 550 should be much faster than the Radeon HD 6750 in general. (explain)

Radeon RX 550		114688 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 50688 (79%)

Texel Rate

The Radeon RX 550 will be a lot (about 35%) faster with regards to AF than the Radeon HD 6750. (explain)

Radeon RX 550		35200 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 9100 (35%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 550 is a better choice, by far. (explain)

Radeon RX 550		17600 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 6000 (52%)

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 information (counted in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.