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GeForce GTX Titan vs Geforce GTX 780

Intro

The GeForce GTX Titan comes with clock speeds of 837 MHz on the GPU, and 1502 MHz on the 6144 MB of GDDR5 RAM. It features 2688 SPUs along with 224 TAUs and 48 ROPs.

Compare those specifications to the Geforce GTX 780, which comes with a clock speed of 863 MHz and a GDDR5 memory frequency of 1502 MHz. It also uses a 384-bit memory bus, and makes use of a 28 nm design. It is comprised of 2304 SPUs, 192 TAUs, and 48 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

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

Texel Rate

The GeForce GTX Titan should be a small bit (more or less 13%) more effective at texture filtering than the Geforce GTX 780. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 780 is superior to the GeForce GTX Titan, not by a very large margin though. (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

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

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 1502 MHz (6008 MHz effective) 1502 MHz (6008 MHz effective)
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 maximum amount of data (in units of MB per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high 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 number of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at 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 could 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 the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max 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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