GeForce 9800 GT 512MB vs GeForce GT 340 1GB

Intro

Compare all of that to the GeForce GT 340 1GB, which features core clock speeds of 550 MHz on the GPU, and 850 MHz on the 1024 MB of GDDR5 memory. It features 96 SPUs as well as 32 TAUs and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce 9800 GT 512MB		105 Watts
	Difference: 36 Watts (52%)

Memory Bandwidth

Performance-wise, the GeForce 9800 GT 512MB should theoretically be a bit superior to the GeForce GT 340 1GB overall. (explain)

GeForce 9800 GT 512MB		57600 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 3200 (6%)

Texel Rate

The GeForce 9800 GT 512MB is quite a bit (approximately 91%) more effective at AF than the GeForce GT 340 1GB. (explain)

GeForce 9800 GT 512MB		33600 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 16000 (91%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 9800 GT 512MB is superior to the GeForce GT 340 1GB, by a large margin. (explain)

GeForce 9800 GT 512MB		9600 Mpixels/sec
GeForce GT 340 1GB		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 (measured in MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, 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 maximum number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.