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GeForce GTX 960 vs Radeon HD 6990

Intro

The GeForce GTX 960 uses a 28 nm design. nVidia has set the core speed at 1127 MHz. The GDDR5 RAM is set to run at a frequency of 1750 MHz on this particular model. It features 1024 SPUs as well as 64 Texture Address Units and 32 ROPs.

Compare that to the Radeon HD 6990, which has GPU core speed of 830 MHz, and 2048 MB of GDDR5 RAM running at 1250 MHz through a 256-bit bus. It also features 1536 Stream Processors, 96 TAUs, and 32 ROPs.

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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

The Radeon HD 6990 should theoretically perform much faster 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 is quite a bit (approximately 121%) more effective at anisotropic filtering than the GeForce GTX 960. (explain)

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

Pixel Rate

The Radeon HD 6990 should be much (approximately 47%) better at FSAA than the GeForce GTX 960, and also able to handle higher resolutions better. (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

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GeForce GTX 960

Amazon.com

Check prices at:

Radeon HD 6990

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 960 Radeon HD 6990
Manufacturer nVidia AMD
Year January 2015 March 2011
Code Name GM206 Antilles
Memory 2048 MB 2048 MB (x2)
Core Speed 1127 MHz 830 MHz (x2)
Memory Speed 7000 MHz 5000 MHz (x2)
Power (Max TDP) 120 watts 375 watts
Bandwidth 112000 MB/sec 320000 MB/sec
Texel Rate 72128 Mtexels/sec 159360 Mtexels/sec
Pixel Rate 36064 Mpixels/sec 53120 Mpixels/sec
Unified Shaders 1024 1536 (x2)
Texture Mapping Units 64 96 (x2)
Render Output Units 32 32 (x2)
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit (x2)
Fab Process 28 nm 40 nm
Transistors 2940 million 2640 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 12.0 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, it must 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The better 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core 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 quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 960

Amazon.com

Check prices at:

Radeon HD 6990

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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