GeForce GTX 965M vs Radeon HD 7950

Intro

Compare those specs to the Radeon HD 7950, which has a core clock speed of 800 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 384-bit memory bus, and uses a 28 nm design. It is made up of 1792 SPUs, 112 Texture Address Units, and 32 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

Radeon HD 7950		7731 points
GeForce GTX 965M		5650 points
	Difference: 2081 (37%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon HD 7950		200 Watts
	Difference: 140 Watts (233%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7950 is 275% quicker than the GeForce GTX 965M overall, due to its higher bandwidth. (explain)

Radeon HD 7950		240000 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 176000 (275%)

Texel Rate

The Radeon HD 7950 is much (more or less 48%) faster with regards to anisotropic filtering than the GeForce GTX 965M. (explain)

Radeon HD 7950		89600 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 29184 (48%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 965M is the winner, though only just barely. (explain)

GeForce GTX 965M		30208 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 4608 (18%)

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 information (measured in MB per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.