GeForce GT 340 1GB vs GeForce GTX 275

Intro

Compare all that to the GeForce GTX 275, which features core clock speeds of 633 MHz on the GPU, and 1134 MHz on the 896 MB of GDDR3 memory. It features 240 SPUs as well as 80 TAUs and 28 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce GTX 275		219 Watts
	Difference: 150 Watts (217%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 275 should be 133% quicker than the GeForce GT 340 1GB in general, because of its higher data rate. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 72608 (133%)

Texel Rate

The GeForce GTX 275 should be a lot (approximately 188%) more effective at texture filtering than the GeForce GT 340 1GB. (explain)

GeForce GTX 275		50640 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 33040 (188%)

Pixel Rate

The GeForce GTX 275 should be quite a bit (approximately 303%) faster with regards to AA than the GeForce GT 340 1GB, and capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 275		17724 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 13324 (303%)

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: Memory bandwidth is the max amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.