GeForce GT 440 1.5GB vs GeForce GTX 650

Intro

Compare those specs to the GeForce GTX 650, which comes with GPU clock speed of 1058 MHz, and 1024 MB of GDDR5 memory running at 1250 MHz through a 128-bit bus. It also is made up of 384 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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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 650		2263 points
GeForce GT 440 1.5GB		840 points
	Difference: 1423 (169%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce GTX 650		64 Watts
	Difference: 8 Watts (14%)

Memory Bandwidth

The GeForce GTX 650 should theoretically be quite a bit faster than the GeForce GT 440 1.5GB in general. (explain)

GeForce GTX 650		80000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 36800 (85%)

Texel Rate

The GeForce GTX 650 is a lot (more or less 137%) more effective at texture filtering than the GeForce GT 440 1.5GB. (explain)

GeForce GTX 650		33856 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 19600 (137%)

Pixel Rate

The GeForce GTX 650 will be a little bit (approximately 19%) better at full screen anti-aliasing than the GeForce GT 440 1.5GB, and also able to handle higher resolutions while still performing well. (explain)

GeForce GTX 650		16928 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 2672 (19%)

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 (in units of MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could 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 the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.