GeForce GT 340 vs GeForce GTX 970

Intro

Compare those specs to the GeForce GTX 970, which uses a 28 nm design. nVidia has clocked the core frequency at 1050 MHz. The GDDR5 memory works at a frequency of 1750 MHz on this card. It features 1664 SPUs along with 104 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the GeForce GTX 970 should be quite a bit faster than the GeForce GT 340 in general. (explain)

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

Texel Rate

The GeForce GTX 970 is a lot (more or less 520%) faster with regards to anisotropic filtering than the GeForce GT 340. (explain)

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

Pixel Rate

The GeForce GTX 970 will be quite a bit (about 1427%) more effective at anti-aliasing than the GeForce GT 340, and also should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GT 340		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 largest amount of data (measured in MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output 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 reach the max fill rate.