GeForce 9800 GT 1GB vs GeForce GT 340

Intro

Compare all of that to the GeForce GT 340, which has clock speeds of 550 MHz on the GPU, and 850 MHz on the 512 MB of GDDR5 RAM. It features 96 SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce 9800 GT 1GB		105 Watts
	Difference: 36 Watts (52%)

Memory Bandwidth

In theory, the GeForce 9800 GT 1GB is 6% faster than the GeForce GT 340 overall, due to its greater bandwidth. (explain)

GeForce 9800 GT 1GB		57600 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 3200 (6%)

Texel Rate

The GeForce 9800 GT 1GB is a lot (approximately 91%) faster with regards to anisotropic filtering than the GeForce GT 340. (explain)

GeForce 9800 GT 1GB		33600 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 16000 (91%)

Pixel Rate

The GeForce 9800 GT 1GB should be much (more or less 118%) faster with regards to AA than the GeForce GT 340, and also will be able to handle higher screen resolutions more effectively. (explain)

GeForce 9800 GT 1GB		9600 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 5200 (118%)

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 largest amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses 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 better 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 applied per second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.