GeForce GTS 450 1GB vs GeForce GTX 650 Ti

Intro

Compare those specifications to the GeForce GTX 650 Ti, which features a core clock speed of 928 MHz and a GDDR5 memory speed of 1350 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 768 SPUs, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 4 Watts (4%)

Memory Bandwidth

The GeForce GTX 650 Ti should in theory perform quite a bit faster than the GeForce GTS 450 1GB in general. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 28672 (50%)

Texel Rate

The GeForce GTX 650 Ti is much (more or less 137%) better at texture filtering than the GeForce GTS 450 1GB. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 34336 (137%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 650 Ti is the winner, though only just barely. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 2320 (19%)

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 data (measured in MB per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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