GeForce 8300 GS (OEM) vs Geforce GTX 780

Intro

Compare all that to the Geforce GTX 780, which uses a 28 nm design. nVidia has clocked the core speed at 863 MHz. The GDDR5 memory runs at a frequency of 1502 MHz on this model. It features 2304 SPUs as well as 192 TAUs and 48 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
Geforce GTX 780		250 Watts
	Difference: 210 Watts (525%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 780 should theoretically be a lot superior to the GeForce 8300 GS (OEM) overall. (explain)

Geforce GTX 780		288384 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 281984 (4406%)

Texel Rate

The Geforce GTX 780 will be much (about 9105%) faster with regards to AF than the GeForce 8300 GS (OEM). (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 163896 (9105%)

Pixel Rate

The Geforce GTX 780 should be much (more or less 4503%) better at FSAA than the GeForce 8300 GS (OEM), and will be capable of handling higher screen resolutions more effectively. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 40524 (4503%)

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 max amount of information (counted in MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the 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 that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. 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 rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.