GeForce GT 340 vs GeForce GTX 970

Intro

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

Display Graphs

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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

Performance-wise, the GeForce GTX 970 should theoretically be much superior to 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 will be a lot (approximately 520%) better at texture filtering than the GeForce GT 340. (explain)

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

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 970 is superior to the GeForce GT 340, by far. (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: Bandwidth is the largest amount of information (in units of MB per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that are applied in one second. This is calculated 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.