Radeon HD 6790 vs Radeon RX 470

Intro

Compare all of that to the Radeon RX 470, which uses a 14 nm design. AMD has set the core frequency at 926 MHz. The GDDR5 memory runs at a speed of 1650 MHz on this particular card. It features 2048 SPUs as well as 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 6790		2150 points
	Difference: 9606 (447%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon HD 6790		150 Watts
	Difference: 30 Watts (25%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 470 will be 57% quicker than the Radeon HD 6790 in general, due to its greater data rate. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 76800 (57%)

Texel Rate

The Radeon RX 470 should be a lot (more or less 253%) more effective at texture filtering than the Radeon HD 6790. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 84928 (253%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 470 is the winner, and very much so. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 16192 (120%)

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 maximum amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core clock 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.