GeForce GTX Titan Black vs Geforce GTX 780

Intro

Compare those specs to the Geforce GTX 780, which has a clock speed of 863 MHz and a GDDR5 memory speed of 1502 MHz. It also makes use of a 384-bit memory bus, and uses a 28 nm design. It features 2304 SPUs, 192 Texture Address Units, and 48 Raster Operation Units.

Display Graphs

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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
Geforce GTX 780		10082 points
	Difference: 1584 (16%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce GTX Titan Black should be 17% quicker than the Geforce GTX 780 in general, due to its greater bandwidth. (explain)

GeForce GTX Titan Black		336000 MB/sec
Geforce GTX 780		288384 MB/sec
	Difference: 47616 (17%)

Texel Rate

The GeForce GTX Titan Black is a lot (more or less 29%) more effective at texture filtering than the Geforce GTX 780. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Geforce GTX 780		165696 Mtexels/sec
	Difference: 47664 (29%)

Pixel Rate

The GeForce GTX Titan Black should be a little bit (about 3%) faster with regards to anti-aliasing than the Geforce GTX 780, and will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Geforce GTX 780		41424 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

Specifications

Memory Bandwidth: Bandwidth is the max amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.