GeForce GTX 965M vs Radeon HD 6770

Intro

Compare those specs to the Radeon HD 6770, which features clock speeds of 900 MHz on the GPU, and 1050 MHz on the 512 MB of GDDR5 RAM. It features 800 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 965M		5650 points
Radeon HD 6770		1520 points
	Difference: 4130 (272%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon HD 6770		108 Watts
	Difference: 48 Watts (80%)

Memory Bandwidth

The Radeon HD 6770 should in theory be just a bit faster than the GeForce GTX 965M in general. (explain)

Radeon HD 6770		67200 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 3200 (5%)

Texel Rate

The GeForce GTX 965M will be quite a bit (approximately 68%) better at texture filtering than the Radeon HD 6770. (explain)

GeForce GTX 965M		60416 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 24416 (68%)

Pixel Rate

The GeForce GTX 965M is quite a bit (more or less 110%) more effective at AA than the Radeon HD 6770, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 965M		30208 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 15808 (110%)

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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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