GeForce 8600 GT 1GB DDR2 vs GeForce GTX 965M

Intro

Compare those specifications to the GeForce GTX 965M, which makes use of a 28 nm design. nVidia has clocked the core speed at 944 MHz. The GDDR5 memory works at a speed of 1000 MHz on this particular card. It features 1024 SPUs as well as 64 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB DDR2		47 Watts
GeForce GTX 965M		60 Watts
	Difference: 13 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 965M should be a lot faster than the GeForce 8600 GT 1GB DDR2 overall. (explain)

GeForce GTX 965M		64000 MB/sec
GeForce 8600 GT 1GB DDR2		12800 MB/sec
	Difference: 51200 (400%)

Texel Rate

The GeForce GTX 965M should be a lot (more or less 599%) faster with regards to texture filtering than the GeForce 8600 GT 1GB DDR2. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce 8600 GT 1GB DDR2		8640 Mtexels/sec
	Difference: 51776 (599%)

Pixel Rate

The GeForce GTX 965M will be a lot (approximately 599%) faster with regards to full screen anti-aliasing than the GeForce 8600 GT 1GB DDR2, and should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce 8600 GT 1GB DDR2		4320 Mpixels/sec
	Difference: 25888 (599%)

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 max amount of data (counted in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.