GeForce GT 340 1GB vs GeForce GTX 650 Ti

Intro

Compare those specifications to the GeForce GTX 650 Ti, which has GPU clock speed of 928 MHz, and 1024 MB of GDDR5 memory set to run at 1350 MHz through a 128-bit bus. It also is comprised of 768 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 41 Watts (59%)

Memory Bandwidth

In theory, the GeForce GTX 650 Ti should perform a lot faster than the GeForce GT 340 1GB in general. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 32000 (59%)

Texel Rate

The GeForce GTX 650 Ti will be a lot (about 237%) better at anisotropic filtering than the GeForce GT 340 1GB. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 41792 (237%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 650 Ti is a better choice, by a large margin. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 10448 (237%)

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 (counted in MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR 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 clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could 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 colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.