GeForce 8300 GS (OEM) vs GeForce GTX 650

Intro

Compare those specifications to the GeForce GTX 650, which comes with GPU clock speed of 1058 MHz, and 1024 MB of GDDR5 RAM running at 1250 MHz through a 128-bit bus. It also is made up of 384 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
GeForce GTX 650		64 Watts
	Difference: 24 Watts (60%)

Memory Bandwidth

The GeForce GTX 650 should in theory perform much faster than the GeForce 8300 GS (OEM) overall. (explain)

GeForce GTX 650		80000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 73600 (1150%)

Texel Rate

The GeForce GTX 650 is quite a bit (more or less 1781%) more effective at anisotropic filtering than the GeForce 8300 GS (OEM). (explain)

GeForce GTX 650		33856 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 32056 (1781%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 650 is superior to the GeForce 8300 GS (OEM), by far. (explain)

GeForce GTX 650		16928 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 16028 (1781%)

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 maximum amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics 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 maximum amount of 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 worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka 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 - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.