GeForce 8300 GS (OEM) vs Geforce GTX 780

Intro

Compare all that to the Geforce GTX 780, which makes use of a 28 nm design. nVidia has clocked the core frequency at 863 MHz. The GDDR5 memory is set to run at a speed of 1502 MHz on this model. It features 2304 SPUs along with 192 Texture Address Units 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

Theoretically speaking, the Geforce GTX 780 should be much faster than 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 is much (more or less 9105%) faster with regards to texture filtering 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

If using a high resolution is important to you, then the Geforce GTX 780 is the winner, by far. (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: Bandwidth is the largest amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number 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 is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.