Radeon HD 6990 vs Radeon R7 260X

Intro

Compare all of that to the Radeon R7 260X, which features core speeds of 1100 MHz on the GPU, and 1625 MHz on the 2048 MB of GDDR5 memory. It features 896 SPUs along with 56 TAUs and 16 Rasterization Operator 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 HD 6990		5820 points
Radeon R7 260X		4381 points
	Difference: 1439 (33%)

Ethereum Mining Hash Rate

Radeon HD 6990		24 Mh/s
Radeon R7 260X		14 Mh/s
	Difference: 10 (71%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X		115 Watts
Radeon HD 6990		375 Watts
	Difference: 260 Watts (226%)

Memory Bandwidth

The Radeon HD 6990 should theoretically perform much faster than the Radeon R7 260X in general. (explain)

Radeon HD 6990		320000 MB/sec
Radeon R7 260X		104000 MB/sec
	Difference: 216000 (208%)

Texel Rate

The Radeon HD 6990 should be quite a bit (approximately 159%) better at texture filtering than the Radeon R7 260X. (explain)

Radeon HD 6990		159360 Mtexels/sec
Radeon R7 260X		61600 Mtexels/sec
	Difference: 97760 (159%)

Pixel Rate

The Radeon HD 6990 will be quite a bit (approximately 202%) faster with regards to anti-aliasing than the Radeon R7 260X, and also able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 6990		53120 Mpixels/sec
Radeon R7 260X		17600 Mpixels/sec
	Difference: 35520 (202%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 amount 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 higher this number, the better the 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 most pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs 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 rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.