Radeon HD 6790 vs Radeon RX 550

Intro

Compare all that to the Radeon RX 550, which has a core clock speed of 1100 MHz and a GDDR5 memory frequency of 1750 MHz. It also features a 128-bit memory bus, and makes use of a 14 nm design. It features 512 SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

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

Performance-wise, the Radeon HD 6790 should in theory be a bit better 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 (about 5%) faster with regards to AF 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 will be quite a bit (about 31%) more effective at full screen anti-aliasing than the Radeon HD 6790, and should be capable of handling higher resolutions without losing too much performance. (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 data (measured in megabytes per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better 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 chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.