Radeon HD 6790 vs Radeon R9 380X

Intro

Compare all that to the Radeon R9 380X, which uses a 28 nm design. AMD has clocked the core speed at 970 MHz. The GDDR5 memory works at a speed of 1425 MHz on this specific model. It features 2048 SPUs as well as 128 Texture Address Units and 32 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 R9 380X		9519 points
Radeon HD 6790		2150 points
	Difference: 7369 (343%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
Radeon R9 380X		190 Watts
	Difference: 40 Watts (27%)

Memory Bandwidth

Performance-wise, the Radeon R9 380X should theoretically be quite a bit better than the Radeon HD 6790 overall. (explain)

Radeon R9 380X		182400 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 48000 (36%)

Texel Rate

The Radeon R9 380X is much (more or less 270%) faster with regards to texture filtering than the Radeon HD 6790. (explain)

Radeon R9 380X		124160 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 90560 (270%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 380X is the winner, by far. (explain)

Radeon R9 380X		31040 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 17600 (131%)

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 within a second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the 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 amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. 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, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.