GeForce 8800 GS vs Radeon HD 6450 (OEM)

Intro

Compare that to the Radeon HD 6450 (OEM), which uses a 40 nm design. AMD has clocked the core speed at 625 MHz. The GDDR3 memory is set to run at a frequency of 800 MHz on this particular card. It features 160 SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
GeForce 8800 GS		105 Watts
	Difference: 74 Watts (239%)

Memory Bandwidth

The GeForce 8800 GS should theoretically perform a lot faster than the Radeon HD 6450 (OEM) overall. (explain)

GeForce 8800 GS		38400 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 25600 (200%)

Texel Rate

The GeForce 8800 GS should be much (about 428%) more effective at anisotropic filtering than the Radeon HD 6450 (OEM). (explain)

GeForce 8800 GS		26400 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 21400 (428%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 8800 GS is superior to the Radeon HD 6450 (OEM), by far. (explain)

GeForce 8800 GS		6600 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 4100 (164%)

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 (measured in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high 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 texture units of the card by the core speed of the chip. The higher this number, the better the 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 number of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. 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 output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.