GeForce 8300 GS (OEM) vs Radeon HD 5450

Intro

Compare those specs to the Radeon HD 5450, which uses a 40 nm design. AMD has clocked the core speed at 650 MHz. The DDR3 memory is set to run at a speed of 800 MHz on this particular card. It features 80(16x5) SPUs along with 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce 8300 GS (OEM)		40 Watts
	Difference: 21 Watts (111%)

Memory Bandwidth

Theoretically, the Radeon HD 5450 should perform quite a bit faster than the GeForce 8300 GS (OEM) overall. (explain)

Radeon HD 5450		12800 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 6400 (100%)

Texel Rate

The Radeon HD 5450 will be quite a bit (approximately 189%) faster with regards to anisotropic filtering than the GeForce 8300 GS (OEM). (explain)

Radeon HD 5450		5200 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 3400 (189%)

Pixel Rate

The Radeon HD 5450 is a lot (more or less 189%) more effective at full screen anti-aliasing than the GeForce 8300 GS (OEM), and also able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 5450		2600 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 1700 (189%)

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 largest amount of data (counted in megabytes per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends 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.