GeForce 8800 GTS (G80) 320MB vs GeForce GTX 650 Ti 2GB

Intro

Compare those specs to the GeForce GTX 650 Ti 2GB, which comes with a clock speed of 928 MHz and a GDDR5 memory frequency of 1350 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is made up of 768 SPUs, 64 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
GeForce 8800 GTS (G80) 320MB		143 Watts
	Difference: 33 Watts (30%)

Memory Bandwidth

The GeForce GTX 650 Ti 2GB should in theory perform quite a bit faster than the GeForce 8800 GTS (G80) 320MB overall. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
GeForce 8800 GTS (G80) 320MB		63360 MB/sec
	Difference: 23040 (36%)

Texel Rate

The GeForce GTX 650 Ti 2GB should be quite a bit (about 141%) better at AF than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
	Difference: 34768 (141%)

Pixel Rate

The GeForce GTX 650 Ti 2GB is a lot (approximately 45%) more effective at FSAA than the GeForce 8800 GTS (G80) 320MB, and also should be able to handle higher resolutions better. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
	Difference: 4588 (45%)

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 largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, 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 number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better 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 maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock 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 quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.