GeForce GTX 960M vs Radeon HD 6770 1GB

Intro

Compare those specifications to the Radeon HD 6770 1GB, which features GPU clock speed of 900 MHz, and 1024 MB of GDDR5 memory set to run at 1050 MHz through a 128-bit bus. It also is comprised of 800 SPUs, 40 TAUs, 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 6770 1GB		108 Watts
	Difference: 43 Watts (66%)

Memory Bandwidth

The Radeon HD 6770 1GB, in theory, should perform a bit faster than the GeForce GTX 960M in general. (explain)

Radeon HD 6770 1GB		67200 MB/sec
GeForce GTX 960M		64000 MB/sec
	Difference: 3200 (5%)

Texel Rate

The GeForce GTX 960M is a lot (more or less 22%) faster with regards to anisotropic filtering than the Radeon HD 6770 1GB. (explain)

GeForce GTX 960M		43840 Mtexels/sec
Radeon HD 6770 1GB		36000 Mtexels/sec
	Difference: 7840 (22%)

Pixel Rate

The GeForce GTX 960M is quite a bit (approximately 22%) faster with regards to anti-aliasing than the Radeon HD 6770 1GB, and should be capable of handling higher screen resolutions better. (explain)

GeForce GTX 960M		17536 Mpixels/sec
Radeon HD 6770 1GB		14400 Mpixels/sec
	Difference: 3136 (22%)

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 transferred past the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most 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 calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.