GeForce GT 340 vs GeForce GTX 460 (OEM)

Intro

Compare those specifications to the GeForce GTX 460 (OEM), which has a GPU core clock speed of 650 MHz, and 1024 MB of GDDR5 RAM set to run at 850 MHz through a 256-bit bus. It also is made up of 336 SPUs, 56 TAUs, and 32 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 460 (OEM)		150 Watts
	Difference: 81 Watts (117%)

Memory Bandwidth

The GeForce GTX 460 (OEM) should in theory be quite a bit faster than the GeForce GT 340 overall. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 54400 (100%)

Texel Rate

The GeForce GTX 460 (OEM) will be a lot (more or less 107%) faster with regards to AF than the GeForce GT 340. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 18800 (107%)

Pixel Rate

The GeForce GTX 460 (OEM) is quite a bit (more or less 373%) faster with regards to AA than the GeForce GT 340, and will be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 16400 (373%)

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 information (measured in MB per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.