Radeon HD 6790 vs Radeon R7 260X

Intro

Compare all that to the Radeon R7 260X, which features a clock frequency of 1100 MHz and a GDDR5 memory speed of 1625 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is comprised of 896 SPUs, 56 TAUs, and 16 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 R7 260X		4381 points
Radeon HD 6790		2150 points
	Difference: 2231 (104%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X		115 Watts
Radeon HD 6790		150 Watts
	Difference: 35 Watts (30%)

Memory Bandwidth

In theory, the Radeon HD 6790 will be 29% quicker than the Radeon R7 260X overall, due to its higher bandwidth. (explain)

Radeon HD 6790		134400 MB/sec
Radeon R7 260X		104000 MB/sec
	Difference: 30400 (29%)

Texel Rate

The Radeon R7 260X should be a lot (more or less 83%) more effective at texture filtering than the Radeon HD 6790. (explain)

Radeon R7 260X		61600 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 28000 (83%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R7 260X is the winner, and very much so. (explain)

Radeon R7 260X		17600 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 4160 (31%)

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 information (measured in megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the 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 number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number 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 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 ability to reach the maximum fill rate.