GeForce GT 340 vs GeForce GTX 260 Core 216

Intro

Compare those specs to the GeForce GTX 260 Core 216, which comes with a clock speed of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also uses a 448-bit bus, and makes use of a 65 nm design. It is comprised of 216 SPUs, 72 TAUs, and 28 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 133 Watts (193%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 260 Core 216 should perform a lot faster than the GeForce GT 340 overall. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 57488 (106%)

Texel Rate

The GeForce GTX 260 Core 216 is much (more or less 136%) more effective at anisotropic filtering than the GeForce GT 340. (explain)

GeForce GTX 260 Core 216		41472 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 23872 (136%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 260 Core 216 is the winner, by a large margin. (explain)

GeForce GTX 260 Core 216		16128 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 11728 (267%)

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 maximum amount of data (in units of MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.