GeForce 9800 GT 512MB vs GeForce GTX 650 Ti

Intro

Compare those specs to the GeForce GTX 650 Ti, which features core speeds of 928 MHz on the GPU, and 1350 MHz on the 1024 MB of GDDR5 memory. It features 768 SPUs as well as 64 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 512MB		105 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 5 Watts (5%)

Memory Bandwidth

Performance-wise, the GeForce GTX 650 Ti should in theory be quite a bit better than the GeForce 9800 GT 512MB overall. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce 9800 GT 512MB		57600 MB/sec
	Difference: 28800 (50%)

Texel Rate

The GeForce GTX 650 Ti should be much (more or less 77%) more effective at texture filtering than the GeForce 9800 GT 512MB. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce 9800 GT 512MB		33600 Mtexels/sec
	Difference: 25792 (77%)

Pixel Rate

The GeForce GTX 650 Ti should be much (approximately 55%) more effective at full screen anti-aliasing than the GeForce 9800 GT 512MB, and should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
GeForce 9800 GT 512MB		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 (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses 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 amount of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines 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 output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.