GeForce GTX Titan Black vs Radeon HD 6770 1GB

Intro

Compare all of that to the Radeon HD 6770 1GB, which comes with a GPU core clock speed of 900 MHz, and 1024 MB of GDDR5 RAM set to run at 1050 MHz through a 128-bit bus. It also is comprised of 800 Stream Processors, 40 Texture Address Units, 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

As far as performance goes, the GeForce GTX Titan Black should theoretically be a lot superior to 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 will be quite a bit (approximately 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

The GeForce GTX Titan Black will be much (about 196%) faster with regards to FSAA than the Radeon HD 6770 1GB, and also should be able to handle higher screen resolutions more effectively. (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: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most 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 worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.