GeForce GT 340 1GB vs GeForce GTS 450

Intro

Compare all of that to the GeForce GTS 450, which features core speeds of 783 MHz on the GPU, and 902 MHz on the 512 MB of GDDR5 memory. It features 192 SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce GTS 450		106 Watts
	Difference: 37 Watts (54%)

Memory Bandwidth

The GeForce GTS 450, in theory, should perform a bit faster than the GeForce GT 340 1GB overall. (explain)

GeForce GTS 450		57728 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 3328 (6%)

Texel Rate

The GeForce GTS 450 should be a lot (approximately 42%) more effective at texture filtering than the GeForce GT 340 1GB. (explain)

GeForce GTS 450		25056 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 7456 (42%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTS 450 is superior to the GeForce GT 340 1GB, and very much so. (explain)

GeForce GTS 450		12528 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 8128 (185%)

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 max amount of information (counted in megabytes per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.