GeForce GTX 650 Ti 2GB vs GeForce GTX Titan

Intro

Compare all that to the GeForce GTX Titan, which makes use of a 28 nm design. nVidia has set the core speed at 837 MHz. The GDDR5 memory runs at a frequency of 1502 MHz on this particular model. It features 2688 SPUs as well as 224 Texture Address Units and 48 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
GeForce GTX Titan		250 Watts
	Difference: 140 Watts (127%)

Memory Bandwidth

In theory, the GeForce GTX Titan should be 234% faster than the GeForce GTX 650 Ti 2GB in general, due to its higher data rate. (explain)

GeForce GTX Titan		288384 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 201984 (234%)

Texel Rate

The GeForce GTX Titan should be much (about 216%) more effective at AF than the GeForce GTX 650 Ti 2GB. (explain)

GeForce GTX Titan		187488 Mtexels/sec
GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
	Difference: 128096 (216%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX Titan is a better choice, by a large margin. (explain)

GeForce GTX Titan		40176 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 25328 (171%)

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 max amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video 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 the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines 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 fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.