GeForce GTX 960M vs Radeon HD 6770 1GB

Intro

Compare that to the Radeon HD 6770 1GB, which has a clock speed of 900 MHz and a GDDR5 memory frequency of 1050 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 800 SPUs, 40 TAUs, and 16 ROPs.

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

As far as performance goes, the Radeon HD 6770 1GB should in theory be a small bit better 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 should be much (approximately 22%) faster with regards to AF 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 will be much (approximately 22%) faster with regards to anti-aliasing than the Radeon HD 6770 1GB, and will be capable of handling higher resolutions without slowing down too much. (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 (measured in megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, 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 amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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