GeForce GTX Titan Black vs Radeon HD 7770

Intro

Compare all that to the Radeon HD 7770, which comes with a clock frequency of 1000 MHz and a GDDR5 memory frequency of 1125 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

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
Radeon HD 7770		3180 points
	Difference: 8486 (267%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770		80 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 170 Watts (213%)

Memory Bandwidth

In theory, the GeForce GTX Titan Black is 367% quicker than the Radeon HD 7770 in general, because of its greater bandwidth. (explain)

GeForce GTX Titan Black		336000 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 264000 (367%)

Texel Rate

The GeForce GTX Titan Black should be quite a bit (about 433%) faster with regards to AF than the Radeon HD 7770. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Radeon HD 7770		40000 Mtexels/sec
	Difference: 173360 (433%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX Titan Black is superior to the Radeon HD 7770, by a large margin. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Radeon HD 7770		16000 Mpixels/sec
	Difference: 26672 (167%)

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 information (counted in MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.