GeForce GTX 960 vs Radeon HD 6990

Intro

Compare all that to the Radeon HD 6990, which uses a 40 nm design. AMD has clocked the core frequency at 830 MHz. The GDDR5 RAM runs at a speed of 1250 MHz on this model. It features 1536 SPUs as well as 96 TAUs and 32 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

GeForce GTX 960		7627 points
Radeon HD 6990		5820 points
	Difference: 1807 (31%)

Ethereum Mining Hash Rate

Radeon HD 6990		24 Mh/s
GeForce GTX 960		11 Mh/s
	Difference: 13 (118%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960		120 Watts
Radeon HD 6990		375 Watts
	Difference: 255 Watts (213%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6990 should theoretically be quite a bit better than the GeForce GTX 960 in general. (explain)

Radeon HD 6990		320000 MB/sec
GeForce GTX 960		112000 MB/sec
	Difference: 208000 (186%)

Texel Rate

The Radeon HD 6990 should be a lot (approximately 121%) more effective at texture filtering than the GeForce GTX 960. (explain)

Radeon HD 6990		159360 Mtexels/sec
GeForce GTX 960		72128 Mtexels/sec
	Difference: 87232 (121%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 6990 is the winner, by far. (explain)

Radeon HD 6990		53120 Mpixels/sec
GeForce GTX 960		36064 Mpixels/sec
	Difference: 17056 (47%)

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 largest amount of information (in units of MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, 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 clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.