GeForce 8800 Ultra vs GeForce GTX 965M

Intro

Compare those specifications to the GeForce GTX 965M, which has a core clock frequency of 944 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It features 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 111 Watts (185%)

Memory Bandwidth

As far as performance goes, the GeForce 8800 Ultra should in theory be much better than the GeForce GTX 965M in general. (explain)

GeForce 8800 Ultra		103680 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 39680 (62%)

Texel Rate

The GeForce GTX 965M is quite a bit (approximately 54%) better at AF than the GeForce 8800 Ultra. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 21248 (54%)

Pixel Rate

The GeForce GTX 965M should be quite a bit (about 106%) faster with regards to AA than the GeForce 8800 Ultra, and capable of handling higher screen resolutions better. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 15520 (106%)

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: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher 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 maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core 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 rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.