GeForce GT 340 1GB vs GeForce GTX 970

Intro

Compare all of that to the GeForce GTX 970, which has GPU clock speed of 1050 MHz, and 4096 MB of GDDR5 RAM set to run at 1750 MHz through a 256-bit bus. It also is made up of 1664 SPUs, 104 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce GTX 970		145 Watts
	Difference: 76 Watts (110%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 970 should be 312% quicker than the GeForce GT 340 1GB overall, due to its higher data rate. (explain)

GeForce GTX 970		224000 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 169600 (312%)

Texel Rate

The GeForce GTX 970 will be much (approximately 520%) faster with regards to AF than the GeForce GT 340 1GB. (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 91600 (520%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 970 is a better choice, by a large margin. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GT 340 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 max amount of information (counted in megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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