GeForce GT 340 vs GeForce GTX 285 1GB

Intro

Compare all of that to the GeForce GTX 285 1GB, which has GPU clock speed of 648 MHz, and 1024 MB of GDDR3 RAM set to run at 1242 MHz through a 512-bit bus. It also is made up of 240 Stream Processors, 80 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 135 Watts (196%)

Memory Bandwidth

The GeForce GTX 285 1GB should in theory be a lot faster than the GeForce GT 340 overall. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 104576 (192%)

Texel Rate

The GeForce GTX 285 1GB should be a lot (about 195%) more effective at anisotropic filtering than the GeForce GT 340. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 34240 (195%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 285 1GB is the winner, and very much so. (explain)

GeForce GTX 285 1GB		20736 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 16336 (371%)

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 transported over the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses 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 higher screen 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 amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called 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 - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.