GeForce GT 240 GDDR5 1GB vs GeForce GTX 970

Intro

Compare all of that to the GeForce GTX 970, which features a core clock speed of 1050 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1664 SPUs, 104 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce GTX 970		145 Watts
	Difference: 75 Watts (107%)

Memory Bandwidth

In theory, the GeForce GTX 970 should be 312% faster than the GeForce GT 240 GDDR5 1GB in general, because of its higher bandwidth. (explain)

GeForce GTX 970		224000 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 169600 (312%)

Texel Rate

The GeForce GTX 970 should be much (approximately 520%) more effective at texture filtering than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 91600 (520%)

Pixel Rate

The GeForce GTX 970 should be much (more or less 1427%) better at AA than the GeForce GT 240 GDDR5 1GB, and capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 62800 (1427%)

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 maximum amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few 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.