GeForce GTX 960 vs Radeon HD 5770

Intro

Compare all of that to the Radeon HD 5770, which uses a 40 nm design. AMD has clocked the core frequency at 850 MHz. The GDDR5 RAM works at a speed of 1200 MHz on this 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 960		120 Watts
	Difference: 12 Watts (11%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 960 should in theory be quite a bit better than the Radeon HD 5770 overall. (explain)

GeForce GTX 960		112000 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 35200 (46%)

Texel Rate

The GeForce GTX 960 should be a lot (approximately 112%) more effective at anisotropic filtering than the Radeon HD 5770. (explain)

GeForce GTX 960		72128 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 38128 (112%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 960 is the winner, by a large margin. (explain)

GeForce GTX 960		36064 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 22464 (165%)

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 transferred across the external memory interface in a second. It's calculated by multiplying the 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 card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

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