GeForce GTX 560 Ti 448 vs Radeon HD 5770

Intro

Compare those specifications to the Radeon HD 5770, which uses a 40 nm design. AMD has set the core frequency at 850 MHz. The GDDR5 memory runs at a frequency of 1200 MHz on this specific card. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770		108 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 102 Watts (94%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti 448 should be quite a bit faster than the Radeon HD 5770 in general. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 67200 (88%)

Texel Rate

The GeForce GTX 560 Ti 448 is quite a bit (approximately 21%) better at anisotropic filtering than the Radeon HD 5770. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 6992 (21%)

Pixel Rate

The GeForce GTX 560 Ti 448 should be quite a bit (approximately 115%) more effective at full screen anti-aliasing than the Radeon HD 5770, and also capable of handling higher resolutions better. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 15680 (115%)

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 maximum amount of data (counted in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 can be processed per second. This is worked out 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.