GeForce GTX Titan Black vs Radeon HD 6770 1GB

Intro

Compare those specifications to the Radeon HD 6770 1GB, which uses a 40 nm design. AMD has set the core frequency at 900 MHz. The GDDR5 memory is set to run at a speed of 1050 MHz on this card. It features 800 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

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

Theoretically speaking, the GeForce GTX Titan Black should be 400% faster than the Radeon HD 6770 1GB overall, because of its higher data rate. (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 much (approximately 493%) more effective at texture 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 (approximately 196%) faster with regards to FSAA than the Radeon HD 6770 1GB, and should be capable of handling higher resolutions without losing too much performance. (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 maximum amount of data (measured in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.