GeForce GTX 650 vs GeForce GTX 650 Ti 2GB

Intro

Compare those specs to the GeForce GTX 650 Ti 2GB, which uses a 28 nm design. nVidia has clocked the core frequency at 928 MHz. The GDDR5 memory works at a frequency of 1350 MHz on this particular card. It features 768 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 650 Ti 2GB		110 Watts
	Difference: 46 Watts (72%)

Memory Bandwidth

The GeForce GTX 650 Ti 2GB should in theory perform a little bit faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 6400 (8%)

Texel Rate

The GeForce GTX 650 Ti 2GB is much (more or less 75%) better at anisotropic filtering than the GeForce GTX 650. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 25536 (75%)

Pixel Rate

The GeForce GTX 650 is a small bit (approximately 14%) better at FSAA than the GeForce GTX 650 Ti 2GB, and will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 650		16928 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 2080 (14%)

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 information (in units of megabytes per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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