GeForce 9800 GTX+ vs GeForce GT 340 1GB

Intro

Compare that to the GeForce GT 340 1GB, which makes use of a 40 nm design. nVidia has set the core speed at 550 MHz. The GDDR5 memory runs at a frequency of 850 MHz on this card. It features 96 SPUs along with 32 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 76 Watts (110%)

Memory Bandwidth

The GeForce 9800 GTX+, in theory, should perform quite a bit faster than the GeForce GT 340 1GB overall. (explain)

GeForce 9800 GTX+		70400 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 16000 (29%)

Texel Rate

The GeForce 9800 GTX+ is a lot (more or less 168%) more effective at AF than the GeForce GT 340 1GB. (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 29632 (168%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce 9800 GTX+ is a better choice, and very much so. (explain)

GeForce 9800 GTX+		11808 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 7408 (168%)

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 megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends 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.