GeForce GTX 650 vs GeForce GTX 650 Ti 2GB

Intro

Compare those specifications to the GeForce GTX 650 Ti 2GB, which makes use of a 28 nm design. nVidia has set the core speed at 928 MHz. The GDDR5 RAM is set to run at a speed of 1350 MHz on this specific model. It features 768 SPUs as well as 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, in theory, should perform a small 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 quite a bit (approximately 75%) faster with regards to 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

If using a high screen resolution is important to you, then the GeForce GTX 650 is superior to the GeForce GTX 650 Ti 2GB, but it probably won't make a huge difference. (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: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the card's 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 texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock 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 output rate is also dependant 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.