GeForce GT 240 GDDR5 1GB vs Geforce GTX 780

Intro

Compare all of that to the Geforce GTX 780, which features a clock speed of 863 MHz and a GDDR5 memory frequency of 1502 MHz. It also uses a 384-bit bus, and makes use of a 28 nm design. It features 2304 SPUs, 192 TAUs, and 48 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Performance-wise, the Geforce GTX 780 should in theory be a lot superior to the GeForce GT 240 GDDR5 1GB in general. (explain)

Geforce GTX 780		288384 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 233984 (430%)

Texel Rate

The Geforce GTX 780 is quite a bit (about 841%) better at AF than the GeForce GT 240 GDDR5 1GB. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 148096 (841%)

Pixel Rate

If using a high resolution is important to you, then the Geforce GTX 780 is a better choice, by a large margin. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 37024 (841%)

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 largest amount of information (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.