Radeon HD 6850 vs Radeon RX 470

Intro

Compare those specs to the Radeon RX 470, which has GPU clock speed of 926 MHz, and 8192 MB of GDDR5 memory set to run at 1650 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 Texture Address Units, and 32 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 470		11756 points
Radeon HD 6850		2395 points
	Difference: 9361 (391%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon HD 6850		127 Watts
	Difference: 7 Watts (6%)

Memory Bandwidth

The Radeon RX 470, in theory, should perform much faster than the Radeon HD 6850 in general. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 6850		128000 MB/sec
	Difference: 83200 (65%)

Texel Rate

The Radeon RX 470 should be quite a bit (about 219%) more effective at anisotropic filtering than the Radeon HD 6850. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 6850		37200 Mtexels/sec
	Difference: 81328 (219%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 470 is superior to the Radeon HD 6850, though not by far. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 6850		24800 Mpixels/sec
	Difference: 4832 (19%)

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: Memory bandwidth is the largest amount of information (counted in MB per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's 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 per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling 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 can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.