GeForce 8300 GS (OEM) vs GeForce GTX 850M

Intro

Compare that to the GeForce GTX 850M, which has a clock frequency of 876 MHz and a DDR3 memory speed of 1000 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the GeForce GTX 850M should be 400% quicker than the GeForce 8300 GS (OEM) in general, because of its higher data rate. (explain)

GeForce GTX 850M		32000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 25600 (400%)

Texel Rate

The GeForce GTX 850M should be quite a bit (more or less 1847%) better at texture filtering than the GeForce 8300 GS (OEM). (explain)

GeForce GTX 850M		35040 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 33240 (1847%)

Pixel Rate

The GeForce GTX 850M should be quite a bit (approximately 1457%) more effective at AA than the GeForce 8300 GS (OEM), and will be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 850M		14016 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 13116 (1457%)

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 (in units of MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If it uses 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 high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.