GeForce GT 340 vs GeForce GTX 460 (OEM)

Intro

Compare those specifications to the GeForce GTX 460 (OEM), which uses a 40 nm design. nVidia has set the core frequency at 650 MHz. The GDDR5 RAM runs at a speed of 850 MHz on this particular card. It features 336 SPUs as well as 56 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

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 in general. (explain)

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

Texel Rate

The GeForce GTX 460 (OEM) should be quite a bit (about 107%) better at anisotropic filtering than the GeForce GT 340. (explain)

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

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 460 (OEM) is superior to the GeForce GT 340, and very much so. (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 data (in units of megabytes per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 can be processed per second. This number is worked out by multiplying the total texture units by the core 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one 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 called Render Output Units) are responsible for outputting the pixels (image) to 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 get to the max fill rate.