GeForce GT 340 1GB vs GeForce GTX 280

Intro

Compare all that to the GeForce GTX 280, which has a clock frequency of 602 MHz and a GDDR3 memory frequency of 1107 MHz. It also features a 512-bit memory bus, and makes use of a 65 nm design. It features 240 SPUs, 80 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce GTX 280		236 Watts
	Difference: 167 Watts (242%)

Memory Bandwidth

In theory, the GeForce GTX 280 should be a lot faster than the GeForce GT 340 1GB in general. (explain)

GeForce GTX 280		141696 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 87296 (160%)

Texel Rate

The GeForce GTX 280 will be a lot (approximately 174%) better at texture filtering than the GeForce GT 340 1GB. (explain)

GeForce GTX 280		48160 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 30560 (174%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 280 is a better choice, by far. (explain)

GeForce GTX 280		19264 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 14864 (338%)

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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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