GeForce GTX 965M vs Radeon HD 6790

Intro

Compare those specifications to the Radeon HD 6790, which has GPU clock speed of 840 MHz, and 1024 MB of GDDR5 memory set to run at 1050 MHz through a 256-bit bus. It also is made up of 800 SPUs, 40 TAUs, 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 6790		2150 points
	Difference: 3500 (163%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon HD 6790		150 Watts
	Difference: 90 Watts (150%)

Memory Bandwidth

Theoretically, the Radeon HD 6790 should be much faster than the GeForce GTX 965M overall. (explain)

Radeon HD 6790		134400 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 70400 (110%)

Texel Rate

The GeForce GTX 965M will be a lot (more or less 80%) better at anisotropic filtering than the Radeon HD 6790. (explain)

GeForce GTX 965M		60416 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 26816 (80%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 965M is the winner, by a large margin. (explain)

GeForce GTX 965M		30208 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 16768 (125%)

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 data (counted in megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 processed per second. This figure is calculated by multiplying the total number of texture units by the core 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 applied per second.

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