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GeForce GTX Titan vs Geforce GTX 780

Intro

The GeForce GTX Titan has a GPU core clock speed of 837 MHz, and the 6144 MB of GDDR5 memory runs at 1502 MHz through a 384-bit bus. It also is made up of 2688 Stream Processors, 224 TAUs, and 48 ROPs.

Compare that to the Geforce GTX 780, which features a core clock speed of 863 MHz and a GDDR5 memory speed of 1502 MHz. It also features a 384-bit bus, and makes use of a 28 nm design. It is made up of 2304 SPUs, 192 Texture Address Units, and 48 ROPs.

Display Graphs

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(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Both cards have exactly the same bandwidth, so in theory they should have the same performance. (explain)

Texel Rate

The GeForce GTX Titan will be a bit (about 13%) faster with regards to anisotropic filtering than the Geforce GTX 780. (explain)

GeForce GTX Titan 187488 Mtexels/sec
Geforce GTX 780 165696 Mtexels/sec
Difference: 21792 (13%)

Pixel Rate

The Geforce GTX 780 should be just a bit (approximately 3%) better at full screen anti-aliasing than the GeForce GTX Titan, and also will be able to handle higher screen resolutions better. (explain)

Geforce GTX 780 41424 Mpixels/sec
GeForce GTX Titan 40176 Mpixels/sec
Difference: 1248 (3%)

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

Display Prices

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GeForce GTX Titan

Amazon.com

Geforce GTX 780

Amazon.com

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

Display Specifications

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Model GeForce GTX Titan Geforce GTX 780
Manufacturer nVidia nVidia
Year February 2013 May 2013
Code Name GK110 GK110
Fab Process 28 nm 28 nm
Bus PCIe 3.0 x16 PCIe 3.0 x16
Memory 6144 MB 3072 MB
Core Speed 837 MHz 863 MHz
Shader Speed 837 MHz 863 MHz
Memory Speed 6008 MHz 6008 MHz
Unified Shaders 2688 2304
Texture Mapping Units 224 192
Render Output Units 48 48
Bus Type GDDR5 GDDR5
Bus Width 384-bit 384-bit
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.3 OpenGL 4.3
Power (Max TDP) 250 watts 250 watts
Shader Model 5.0 5.0
Bandwidth 288384 MB/sec 288384 MB/sec
Texel Rate 187488 Mtexels/sec 165696 Mtexels/sec
Pixel Rate 40176 Mpixels/sec 41424 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 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 number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at 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 card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Comments

4 Responses to “GeForce GTX Titan vs Geforce GTX 780”
Anonymous says:

yolo :] it's awesome

Animetakerfan says:

MY GTX 780 Phantom has:
GPU clock: 1079MHZ
Memory clock: 1652MHz
It´s a Titan killer

ali says:

I searching for the best vga to put it in my specs list for my lap?

NewGirlInTown says:

At almost half the price of the Titan and it can handle the best games the same? It's almost a no brainer.
Much better choice than even going with SLI OR Crossfire.
It's fast! Crisp clean visuals. Fast FPS. No lag due to your card.
As another commenter said, It's a Titan killer!

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