GeForce GTX Titan vs Radeon HD 5770

Intro

Compare all of that to the Radeon HD 5770, which comes with a core clock frequency of 850 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 128-bit memory bus, and uses a 40 nm design. It is made up of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770		108 Watts
GeForce GTX Titan		250 Watts
	Difference: 142 Watts (131%)

Memory Bandwidth

Theoretically, the GeForce GTX Titan should perform much faster than the Radeon HD 5770 in general. (explain)

GeForce GTX Titan		288384 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 211584 (276%)

Texel Rate

The GeForce GTX Titan will be quite a bit (more or less 451%) faster with regards to anisotropic filtering than the Radeon HD 5770. (explain)

GeForce GTX Titan		187488 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 153488 (451%)

Pixel Rate

The GeForce GTX Titan is quite a bit (approximately 195%) more effective at FSAA than the Radeon HD 5770, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX Titan		40176 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 26576 (195%)

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 largest amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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