GeForce GTX Titan Black vs Radeon HD 6770 1GB

Intro

Compare those specs to the Radeon HD 6770 1GB, which features a core clock frequency of 900 MHz and a GDDR5 memory speed of 1050 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is comprised of 800 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770 1GB		108 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 142 Watts (131%)

Memory Bandwidth

The GeForce GTX Titan Black, in theory, should perform a lot faster than the Radeon HD 6770 1GB in general. (explain)

GeForce GTX Titan Black		336000 MB/sec
Radeon HD 6770 1GB		67200 MB/sec
	Difference: 268800 (400%)

Texel Rate

The GeForce GTX Titan Black is much (about 493%) faster with regards to anisotropic filtering than the Radeon HD 6770 1GB. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Radeon HD 6770 1GB		36000 Mtexels/sec
	Difference: 177360 (493%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX Titan Black is superior to the Radeon HD 6770 1GB, by far. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Radeon HD 6770 1GB		14400 Mpixels/sec
	Difference: 28272 (196%)

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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 can be processed in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines 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 rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.