GeForce GT 340 1GB vs GeForce GTX 970M

Intro

Compare those specs to the GeForce GTX 970M, which uses a 28 nm design. nVidia has set the core frequency at 924 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this model. It features 1280 SPUs along with 80 Texture Address Units and 48 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce GTX 970M		75 Watts
	Difference: 6 Watts (9%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 970M should theoretically be much better than the GeForce GT 340 1GB overall. (explain)

GeForce GTX 970M		96000 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 41600 (76%)

Texel Rate

The GeForce GTX 970M is much (more or less 320%) better at anisotropic filtering than the GeForce GT 340 1GB. (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 56320 (320%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 970M is the winner, by far. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 39952 (908%)

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 data (measured in MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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