GeForce GT 340 1GB vs GeForce GTX 750 Ti

Intro

Compare those specifications to the GeForce GTX 750 Ti, which makes use of a 28 nm design. nVidia has set the core speed at 1020 MHz. The GDDR5 memory runs at a frequency of 1350 MHz on this specific model. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti		60 Watts
GeForce GT 340 1GB		69 Watts
	Difference: 9 Watts (15%)

Memory Bandwidth

Performance-wise, the GeForce GTX 750 Ti should in theory be much superior to the GeForce GT 340 1GB overall. (explain)

GeForce GTX 750 Ti		86400 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 32000 (59%)

Texel Rate

The GeForce GTX 750 Ti will be quite a bit (approximately 132%) faster with regards to texture filtering than the GeForce GT 340 1GB. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 23200 (132%)

Pixel Rate

The GeForce GTX 750 Ti will be much (about 271%) better at full screen anti-aliasing than the GeForce GT 340 1GB, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 11920 (271%)

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 data (measured in megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in a 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 clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.