GeForce GTX 965M vs Radeon HD 7950

Intro

Compare those specs to the Radeon HD 7950, which has a clock frequency of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 384-bit bus, and uses a 28 nm design. It features 1792 SPUs, 112 TAUs, 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, the Radeon HD 7950 should be a lot faster than the GeForce GTX 965M overall. (explain)

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

Texel Rate

The Radeon HD 7950 will be much (approximately 48%) better at AF than the GeForce GTX 965M. (explain)

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

Pixel Rate

The GeForce GTX 965M will be just a bit (more or less 18%) faster with regards to AA than the Radeon HD 7950, and capable of handling higher screen resolutions without losing too much performance. (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 data (measured in megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units of the card by the core 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one 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 - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.