Radeon HD 6790 vs Radeon R7 260X

Intro

Compare all of 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 memory bus, and uses a 28 nm design. It features 896 SPUs, 56 TAUs, and 16 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 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

As far as performance goes, the Radeon HD 6790 should in theory be a lot better than the Radeon R7 260X overall. (explain)

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

Texel Rate

The Radeon R7 260X is quite a bit (about 83%) better at anisotropic 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 a better choice, 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 largest amount of data (counted in MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling 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 the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. 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 rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.