GeForce GTX 470 vs GeForce GTX 650 Ti 2GB

Intro

Compare those specs to the GeForce GTX 650 Ti 2GB, which has GPU clock speed of 928 MHz, and 2048 MB of GDDR5 memory set to run at 1350 MHz through a 128-bit bus. It also is comprised of 768 Stream Processors, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
GeForce GTX 470		215 Watts
	Difference: 105 Watts (95%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 470 should be 55% quicker than the GeForce GTX 650 Ti 2GB overall, because of its greater bandwidth. (explain)

GeForce GTX 470		133920 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 47520 (55%)

Texel Rate

The GeForce GTX 650 Ti 2GB will be quite a bit (about 75%) more effective at anisotropic filtering than the GeForce GTX 470. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GTX 470		33992 Mtexels/sec
	Difference: 25400 (75%)

Pixel Rate

The GeForce GTX 470 is quite a bit (about 64%) better at full screen anti-aliasing than the GeForce GTX 650 Ti 2GB, and able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 470		24280 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 9432 (64%)

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 largest amount of information (in units of MB per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount 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 fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.