GeForce GTX Titan vs Radeon HD 7770

Intro

Compare all that to the Radeon HD 7770, which makes use of a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 RAM is set to run at a frequency of 1125 MHz on this specific card. It features 640 SPUs along with 40 TAUs and 16 ROPs.

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		10162 points
Radeon HD 7770		3180 points
	Difference: 6982 (220%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

In theory, the GeForce GTX Titan should be 301% faster than the Radeon HD 7770 in general, because of its greater bandwidth. (explain)

GeForce GTX Titan		288384 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 216384 (301%)

Texel Rate

The GeForce GTX Titan is a lot (more or less 369%) better at AF than the Radeon HD 7770. (explain)

GeForce GTX Titan		187488 Mtexels/sec
Radeon HD 7770		40000 Mtexels/sec
	Difference: 147488 (369%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX Titan is superior to the Radeon HD 7770, by a large margin. (explain)

GeForce GTX Titan		40176 Mpixels/sec
Radeon HD 7770		16000 Mpixels/sec
	Difference: 24176 (151%)

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 transferred over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.