Radeon HD 6790 vs Radeon RX 550

Intro

Compare those specifications to the Radeon RX 550, which comes with a core clock frequency of 1100 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 128-bit bus, and makes use of a 14 nm design. It is made up of 512 SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX 550		3507 points
Radeon HD 6790		2150 points
	Difference: 1357 (63%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon HD 6790		150 Watts
	Difference: 100 Watts (200%)

Memory Bandwidth

The Radeon HD 6790 should theoretically be just a bit faster than the Radeon RX 550 overall. (explain)

Radeon HD 6790		134400 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 19712 (17%)

Texel Rate

The Radeon RX 550 is just a bit (approximately 5%) more effective at texture filtering than the Radeon HD 6790. (explain)

Radeon RX 550		35200 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 1600 (5%)

Pixel Rate

The Radeon RX 550 is a lot (about 31%) faster with regards to FSAA than the Radeon HD 6790, and will be able to handle higher screen resolutions more effectively. (explain)

Radeon RX 550		17600 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 4160 (31%)

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 (in units of megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core 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 also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.