GeForce GTX 960M vs Radeon HD 5770

Intro

Compare those specs to the Radeon HD 5770, which comes with GPU clock speed of 850 MHz, and 1024 MB of GDDR5 memory running at 1200 MHz through a 128-bit bus. It also features 800(160x5) Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
Radeon HD 5770		108 Watts
	Difference: 43 Watts (66%)

Memory Bandwidth

The Radeon HD 5770, in theory, should perform just a bit faster than the GeForce GTX 960M overall. (explain)

Radeon HD 5770		76800 MB/sec
GeForce GTX 960M		64000 MB/sec
	Difference: 12800 (20%)

Texel Rate

The GeForce GTX 960M will be quite a bit (about 29%) more effective at texture filtering than the Radeon HD 5770. (explain)

GeForce GTX 960M		43840 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 9840 (29%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 960M is a better choice, and very much so. (explain)

GeForce GTX 960M		17536 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 3936 (29%)

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 information (in units of megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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