GeForce GTX 650 Ti 2GB vs GeForce GTX 970

Intro

Compare that to the GeForce GTX 970, which uses a 28 nm design. nVidia has clocked the core frequency at 1050 MHz. The GDDR5 RAM runs at a frequency of 1750 MHz on this particular model. It features 1664 SPUs as well as 104 Texture Address Units and 64 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 970		145 Watts
	Difference: 35 Watts (32%)

Memory Bandwidth

The GeForce GTX 970 should in theory perform quite a bit faster than the GeForce GTX 650 Ti 2GB overall. (explain)

GeForce GTX 970		224000 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 137600 (159%)

Texel Rate

The GeForce GTX 970 should be much (approximately 84%) better at anisotropic filtering than the GeForce GTX 650 Ti 2GB. (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
	Difference: 49808 (84%)

Pixel Rate

The GeForce GTX 970 should be quite a bit (about 353%) more effective at FSAA than the GeForce GTX 650 Ti 2GB, and also will be able to handle higher screen resolutions better. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 52352 (353%)

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 MB per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units of the card 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.