GeForce GT 340 1GB vs GeForce GTX 460 1GB

Intro

Compare those specs to the GeForce GTX 460 1GB, which features GPU core speed of 675 MHz, and 1024 MB of GDDR5 memory running at 900 MHz through a 256-bit bus. It also features 336 Stream Processors, 56 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 91 Watts (132%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 1GB will be 112% faster than the GeForce GT 340 1GB in general, due to its higher data rate. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 60800 (112%)

Texel Rate

The GeForce GTX 460 1GB is quite a bit (approximately 115%) better at AF than the GeForce GT 340 1GB. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 20200 (115%)

Pixel Rate

The GeForce GTX 460 1GB will be much (about 391%) more effective at full screen anti-aliasing than the GeForce GT 340 1GB, and also capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 17200 (391%)

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 max amount of data (measured in MB 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 speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core 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 also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.