GeForce GT 340 vs GeForce GTX 880M

Intro

Compare those specifications to the GeForce GTX 880M, which comes with clock speeds of 954 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 memory. It features 1536 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce GTX 880M		130 Watts
	Difference: 61 Watts (88%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 880M should be a lot faster than the GeForce GT 340 in general. (explain)

GeForce GTX 880M		128000 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 73600 (135%)

Texel Rate

The GeForce GTX 880M will be quite a bit (more or less 594%) more effective at anisotropic filtering than the GeForce GT 340. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 104512 (594%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 880M is superior to the GeForce GT 340, and very much so. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 26128 (594%)

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 (counted in MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.