Radeon HD 6970 vs Radeon R9 390X 8G

Intro

Compare all of that to the Radeon R9 390X 8G, which comes with a clock frequency of 1050 MHz and a GDDR5 memory frequency of 1500 MHz. It also uses a 512-bit bus, and uses a 28 nm design. It features 2816 SPUs, 176 Texture Address Units, and 64 Raster Operation 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 R9 390X 8G		13555 points
Radeon HD 6970		3470 points
	Difference: 10085 (291%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6970		250 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 25 Watts (10%)

Memory Bandwidth

The Radeon R9 390X 8G should theoretically be a lot faster than the Radeon HD 6970 in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon HD 6970		176000 MB/sec
	Difference: 208000 (118%)

Texel Rate

The Radeon R9 390X 8G should be quite a bit (approximately 119%) faster with regards to texture filtering than the Radeon HD 6970. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon HD 6970		84480 Mtexels/sec
	Difference: 100320 (119%)

Pixel Rate

The Radeon R9 390X 8G should be much (about 139%) more effective at AA than the Radeon HD 6970, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Radeon HD 6970		28160 Mpixels/sec
	Difference: 39040 (139%)

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 past the external memory interface within a second. The number is calculated 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 4 instead. 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 are applied in one second. This number is calculated by multiplying the total texture units of the card 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.