Radeon HD 6850 vs Radeon RX 550

Intro

Compare all that to the Radeon RX 550, which features core clock speeds of 1100 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 RAM. It features 512 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

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 6850		2395 points
	Difference: 1112 (46%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon HD 6850		127 Watts
	Difference: 77 Watts (154%)

Memory Bandwidth

In theory, the Radeon HD 6850 should be 12% quicker than the Radeon RX 550 overall, due to its higher bandwidth. (explain)

Radeon HD 6850		128000 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 13312 (12%)

Texel Rate

The Radeon HD 6850 should be a bit (approximately 6%) more effective at AF than the Radeon RX 550. (explain)

Radeon HD 6850		37200 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 2000 (6%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 6850 is a better choice, by a large margin. (explain)

Radeon HD 6850		24800 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 7200 (41%)

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 maximum amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 can be applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.