GeForce GTS 450 1GB vs GeForce GTX 560

Intro

Compare all of that to the GeForce GTX 560, which makes use of a 40 nm design. nVidia has set the core frequency at 810 MHz. The GDDR5 RAM is set to run at a frequency of 1001 MHz on this model. It features 336 SPUs along with 56 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
GeForce GTX 560		150 Watts
	Difference: 44 Watts (42%)

Memory Bandwidth

The GeForce GTX 560 should in theory be quite a bit faster than the GeForce GTS 450 1GB overall. (explain)

GeForce GTX 560		128128 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 70400 (122%)

Texel Rate

The GeForce GTX 560 will be a lot (more or less 81%) more effective at anisotropic filtering than the GeForce GTS 450 1GB. (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 20304 (81%)

Pixel Rate

The GeForce GTX 560 is a lot (more or less 107%) better at AA than the GeForce GTS 450 1GB, and also able to handle higher resolutions while still performing well. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 13392 (107%)

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 maximum amount of data (in units of megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If 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 texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. 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 lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.