GeForce GT 340 vs GeForce GTX 260 Core 216

Intro

Compare all of that to the GeForce GTX 260 Core 216, which has a core clock speed of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also makes use of a 448-bit memory bus, and makes use of a 65 nm design. It features 216 SPUs, 72 Texture Address Units, 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

The GeForce GTX 260 Core 216 should theoretically be much 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 will be much (more or less 136%) faster with regards to AF 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

The GeForce GTX 260 Core 216 is a lot (approximately 267%) faster with regards to anti-aliasing than the GeForce GT 340, and will be capable of handling higher screen resolutions without losing too much performance. (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: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.