GeForce 8800 Ultra vs GeForce GT 340 1GB

Intro

Compare those specifications to the GeForce GT 340 1GB, which has a clock speed of 550 MHz and a GDDR5 memory speed of 850 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It is comprised of 96 SPUs, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 102 Watts (148%)

Memory Bandwidth

The GeForce 8800 Ultra should theoretically be a lot faster than the GeForce GT 340 1GB in general. (explain)

GeForce 8800 Ultra		103680 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 49280 (91%)

Texel Rate

The GeForce 8800 Ultra will be quite a bit (more or less 123%) faster with regards to texture filtering than the GeForce GT 340 1GB. (explain)

GeForce 8800 Ultra		39168 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 21568 (123%)

Pixel Rate

The GeForce 8800 Ultra will be a lot (about 234%) better at FSAA than the GeForce GT 340 1GB, and able to handle higher resolutions while still performing well. (explain)

GeForce 8800 Ultra		14688 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 10288 (234%)

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 data (in units of MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is worked out 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 processed per second.

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