GeForce GT 440 1.5GB vs Geforce GTX 680

Intro

Compare that to the Geforce GTX 680, which has a GPU core clock speed of 1006 MHz, and 2048 MB of GDDR5 RAM set to run at 1502 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Geforce GTX 680		7650 points
GeForce GT 440 1.5GB		840 points
	Difference: 6810 (811%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Geforce GTX 680		195 Watts
	Difference: 139 Watts (248%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 680 will be 345% quicker than the GeForce GT 440 1.5GB overall, because of its greater data rate. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 149056 (345%)

Texel Rate

The Geforce GTX 680 is a lot (more or less 803%) more effective at AF than the GeForce GT 440 1.5GB. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 114512 (803%)

Pixel Rate

The Geforce GTX 680 should be quite a bit (more or less 126%) faster with regards to AA than the GeForce GT 440 1.5GB, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 17936 (126%)

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 maximum amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.