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Geforce GTX 780 vs Radeon HD 7970

Intro

The Geforce GTX 780 uses a 28 nm design. nVidia has set the core frequency at 863 MHz. The GDDR5 RAM runs at a speed of 1502 MHz on this card. It features 2304 SPUs along with 192 TAUs and 48 ROPs.

Compare all that to the Radeon HD 7970, which comes with a core clock frequency of 925 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 384-bit bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, 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 780 10082 points
Radeon HD 7970 8225 points
Difference: 1857 (23%)

Grand Theft Auto V | 1920x1080 | Very High

Geforce GTX 780 48 FPS
Radeon HD 7970 37 FPS
Difference: 11 (30%)

Ethereum Mining Hash Rate

Radeon HD 7970 21 Mh/s
Geforce GTX 780 20 Mh/s
Difference: 1 (5%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the Geforce GTX 780 will be 9% quicker than the Radeon HD 7970 overall, because of its greater data rate. (explain)

Geforce GTX 780 288384 MB/sec
Radeon HD 7970 264000 MB/sec
Difference: 24384 (9%)

Texel Rate

The Geforce GTX 780 will be quite a bit (more or less 40%) more effective at AF than the Radeon HD 7970. (explain)

Geforce GTX 780 165696 Mtexels/sec
Radeon HD 7970 118400 Mtexels/sec
Difference: 47296 (40%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 780 is superior to the Radeon HD 7970, and very much so. (explain)

Geforce GTX 780 41424 Mpixels/sec
Radeon HD 7970 29600 Mpixels/sec
Difference: 11824 (40%)

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 780

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 780 Radeon HD 7970
Manufacturer nVidia AMD
Year May 2013 January 2012
Code Name GK110 Tahiti XT
Memory 3072 MB 3072 MB
Core Speed 863 MHz 925 MHz
Memory Speed 6008 MHz 5500 MHz
Power (Max TDP) 250 watts 250 watts
Bandwidth 288384 MB/sec 264000 MB/sec
Texel Rate 165696 Mtexels/sec 118400 Mtexels/sec
Pixel Rate 41424 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 2304 2048
Texture Mapping Units 192 128
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 4.3 OpenGL 4.2

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number 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 card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Geforce GTX 780

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.

Comments

2 Responses to “Geforce GTX 780 vs Radeon HD 7970”
Anonymous says:

would still prefer the 7970 for looks - me 2014

duderman says:

have 2 7970's. Sapphire dual-x. See no reason to upgrade in the next few years. Donald Trump will have left office by then even if he does 2 terms.

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