GeForce GT 340 1GB vs GeForce GTX 965M

Intro

Compare those specs to the GeForce GTX 965M, which uses a 28 nm design. nVidia has set the core frequency at 944 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this model. It features 1024 SPUs along with 64 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce GT 340 1GB		69 Watts
	Difference: 9 Watts (15%)

Memory Bandwidth

In theory, the GeForce GTX 965M should be a little bit faster than the GeForce GT 340 1GB in general. (explain)

GeForce GTX 965M		64000 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 9600 (18%)

Texel Rate

The GeForce GTX 965M will be a lot (about 243%) more effective at anisotropic filtering than the GeForce GT 340 1GB. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 42816 (243%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 965M is superior to the GeForce GT 340 1GB, by a large margin. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 25808 (587%)

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 data (measured in MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, the result 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, 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 most pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.