GeForce GT 440 1.5GB vs GeForce GTS 250 1GB

Intro

Compare that to the GeForce GTS 250 1GB, which uses a 65/55 nm design. nVidia has set the core frequency at 738 MHz. The GDDR3 memory is set to run at a frequency of 1100 MHz on this particular card. It features 128 SPUs along with 64 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 89 Watts (159%)

Memory Bandwidth

As far as performance goes, the GeForce GTS 250 1GB should theoretically be quite a bit better than the GeForce GT 440 1.5GB overall. (explain)

GeForce GTS 250 1GB		70400 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 27200 (63%)

Texel Rate

The GeForce GTS 250 1GB should be a lot (approximately 231%) faster with regards to texture filtering than the GeForce GT 440 1.5GB. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 32976 (231%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GT 440 1.5GB is superior to the GeForce GTS 250 1GB, and very much so. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
GeForce GTS 250 1GB		11808 Mpixels/sec
	Difference: 2448 (21%)

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 (measured in MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR 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 texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.