GeForce GT 440 3GB vs Geforce GTX 670

Intro

Compare those specs to the Geforce GTX 670, which makes use of a 28 nm design. nVidia has set the core speed at 915 MHz. The GDDR5 RAM runs at a speed of 1500 MHz on this particular card. It features 1344 SPUs as well as 112 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Geforce GTX 670		170 Watts
	Difference: 114 Watts (204%)

Memory Bandwidth

The Geforce GTX 670 should in theory perform much faster than the GeForce GT 440 3GB overall. (explain)

Geforce GTX 670		192000 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 148800 (344%)

Texel Rate

The Geforce GTX 670 is quite a bit (about 619%) faster with regards to anisotropic filtering than the GeForce GT 440 3GB. (explain)

Geforce GTX 670		102480 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 88224 (619%)

Pixel Rate

The Geforce GTX 670 should be a lot (approximately 105%) more effective at FSAA than the GeForce GT 440 3GB, and also will be able to handle higher screen resolutions more effectively. (explain)

Geforce GTX 670		29280 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 15024 (105%)

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 largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the 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 that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.