GeForce 9800 GT 1GB vs GeForce GTX 650 Ti

Intro

Compare all that to the GeForce GTX 650 Ti, which uses a 28 nm design. nVidia has set the core frequency at 928 MHz. The GDDR5 memory runs at a frequency of 1350 MHz on this model. It features 768 SPUs along with 64 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB		105 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 5 Watts (5%)

Memory Bandwidth

The GeForce GTX 650 Ti should theoretically perform quite a bit faster than the GeForce 9800 GT 1GB in general. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 28800 (50%)

Texel Rate

The GeForce GTX 650 Ti should be quite a bit (about 77%) faster with regards to anisotropic filtering than the GeForce 9800 GT 1GB. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce 9800 GT 1GB		33600 Mtexels/sec
	Difference: 25792 (77%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 650 Ti is superior to the GeForce 9800 GT 1GB, and very much so. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
GeForce 9800 GT 1GB		9600 Mpixels/sec
	Difference: 5248 (55%)

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 (measured in megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.