GeForce GTX Titan vs Radeon HD 7770

Intro

Compare those specs to the Radeon HD 7770, which has core speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator 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		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

Theoretically, the GeForce GTX Titan should be much faster than the Radeon HD 7770 overall. (explain)

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

Texel Rate

The GeForce GTX Titan should be a lot (more or less 369%) more effective at anisotropic filtering 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 high levels of AA 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: Bandwidth is the max amount of data (counted in MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's 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 are applied in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. 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 reach the maximum fill rate.