GeForce 8600 GT 1GB GDDR3 vs GeForce GTX 965M

Intro

Compare all of that to the GeForce GTX 965M, which features a core clock frequency of 944 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is made up of 1024 SPUs, 64 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB GDDR3		47 Watts
GeForce GTX 965M		60 Watts
	Difference: 13 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 965M should be quite a bit faster than the GeForce 8600 GT 1GB GDDR3 overall. (explain)

GeForce GTX 965M		64000 MB/sec
GeForce 8600 GT 1GB GDDR3		22400 MB/sec
	Difference: 41600 (186%)

Texel Rate

The GeForce GTX 965M should be much (approximately 599%) faster with regards to anisotropic filtering than the GeForce 8600 GT 1GB GDDR3. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce 8600 GT 1GB GDDR3		8640 Mtexels/sec
	Difference: 51776 (599%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 965M is superior to the GeForce 8600 GT 1GB GDDR3, by a large margin. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce 8600 GT 1GB GDDR3		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 largest amount of data (counted in megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

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