GeForce GTX 965M vs Radeon HD 5970

Intro

Compare those specifications to the Radeon HD 5970, which comes with a core clock speed of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 256-bit memory bus, and uses a 40 nm design. It features 1600 SPUs, 160 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon HD 5970		294 Watts
	Difference: 234 Watts (390%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5970 should theoretically be a lot better than the GeForce GTX 965M overall. (explain)

Radeon HD 5970		256000 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 192000 (300%)

Texel Rate

The Radeon HD 5970 will be a lot (about 284%) faster with regards to AF than the GeForce GTX 965M. (explain)

Radeon HD 5970		232000 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 171584 (284%)

Pixel Rate

The Radeon HD 5970 should be a lot (about 207%) better at anti-aliasing than the GeForce GTX 965M, and should be capable of handling higher resolutions more effectively. (explain)

Radeon HD 5970		92800 Mpixels/sec
GeForce GTX 965M		30208 Mpixels/sec
	Difference: 62592 (207%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video 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 most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units 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 fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.