GeForce GT 240 GDDR5 1GB vs GeForce GTX 780 Ti

Intro

Compare all that to the GeForce GTX 780 Ti, which uses a 28 nm design. nVidia has clocked the core speed at 875 MHz. The GDDR5 RAM is set to run at a speed of 1750 MHz on this specific card. It features 2880 SPUs as well as 240 TAUs and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 180 Watts (257%)

Memory Bandwidth

The GeForce GTX 780 Ti should in theory perform much faster than the GeForce GT 240 GDDR5 1GB overall. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 281600 (518%)

Texel Rate

The GeForce GTX 780 Ti should be much (approximately 1093%) more effective at texture filtering than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 192400 (1093%)

Pixel Rate

The GeForce GTX 780 Ti will be a lot (about 855%) more effective at full screen anti-aliasing than the GeForce GT 240 GDDR5 1GB, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 37600 (855%)

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 (in units of megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the 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 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.