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GeForce GTX Titan Black vs Radeon HD 7970

Intro

The GeForce GTX Titan Black makes use of a 28 nm design. nVidia has set the core speed at 889 MHz. The GDDR5 RAM works at a speed of 1750 MHz on this particular model. It features 2880 SPUs as well as 240 TAUs and 48 Rasterization Operator Units.

Compare all that to the Radeon HD 7970, which features a clock speed of 925 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 384-bit bus, and makes use of a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

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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 Titan Black 11666 points
Radeon HD 7970 8225 points
Difference: 3441 (42%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the GeForce GTX Titan Black should be quite a bit faster than the Radeon HD 7970 overall. (explain)

GeForce GTX Titan Black 336000 MB/sec
Radeon HD 7970 264000 MB/sec
Difference: 72000 (27%)

Texel Rate

The GeForce GTX Titan Black is quite a bit (about 80%) faster with regards to anisotropic filtering than the Radeon HD 7970. (explain)

GeForce GTX Titan Black 213360 Mtexels/sec
Radeon HD 7970 118400 Mtexels/sec
Difference: 94960 (80%)

Pixel Rate

The GeForce GTX Titan Black should be quite a bit (more or less 44%) more effective at full screen anti-aliasing than the Radeon HD 7970, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX Titan Black 42672 Mpixels/sec
Radeon HD 7970 29600 Mpixels/sec
Difference: 13072 (44%)

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

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GeForce GTX Titan Black

Amazon.com

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Radeon HD 7970

Amazon.com

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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 Titan Black Radeon HD 7970
Manufacturer nVidia AMD
Year February 2014 January 2012
Code Name GK110-430 Tahiti XT
Memory 6144 MB 3072 MB
Core Speed 889 MHz 925 MHz
Memory Speed 7000 MHz 5500 MHz
Power (Max TDP) 250 watts 250 watts
Bandwidth 336000 MB/sec 264000 MB/sec
Texel Rate 213360 Mtexels/sec 118400 Mtexels/sec
Pixel Rate 42672 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 2880 2048
Texture Mapping Units 240 128
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 384-bit
Fab Process 28 nm 28 nm
Transistors 7080 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.4 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of 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.

Display Prices

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GeForce GTX Titan Black

Amazon.com

Check prices at:

Radeon HD 7970

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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