GeForce GTX 960M vs Radeon HD 6770 1GB

Intro

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

Display Graphs

Hide Graphs

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

In theory, the Radeon HD 6770 1GB should perform just a bit faster than the GeForce GTX 960M overall. (explain)

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

Texel Rate

The GeForce GTX 960M is much (approximately 22%) better at 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

If running with high levels of AA is important to you, then the GeForce GTX 960M is the winner, by a large margin. (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 maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.