GeForce 8600 GS (OEM) vs GeForce GTX 965M

Intro

Compare all that to the GeForce GTX 965M, which features a clock speed of 944 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It features 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 GS (OEM)		47 Watts
GeForce GTX 965M		60 Watts
	Difference: 13 Watts (28%)

Memory Bandwidth

The GeForce GTX 965M should theoretically be a lot faster than the GeForce 8600 GS (OEM) in general. (explain)

GeForce GTX 965M		64000 MB/sec
GeForce 8600 GS (OEM)		12800 MB/sec
	Difference: 51200 (400%)

Texel Rate

The GeForce GTX 965M is quite a bit (more or less 599%) more effective at AF than the GeForce 8600 GS (OEM). (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce 8600 GS (OEM)		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 GS (OEM), by far. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce 8600 GS (OEM)		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 maximum amount of data (counted in MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core 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 also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.