GeForce 9800 GT 512MB vs Radeon HD 6450 (OEM) 1GB

Intro

Compare those specs to the Radeon HD 6450 (OEM) 1GB, which has core speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 160 SPUs as well as 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
GeForce 9800 GT 512MB		105 Watts
	Difference: 74 Watts (239%)

Memory Bandwidth

The GeForce 9800 GT 512MB should theoretically perform much faster than the Radeon HD 6450 (OEM) 1GB in general. (explain)

GeForce 9800 GT 512MB		57600 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 28800 (100%)

Texel Rate

The GeForce 9800 GT 512MB should be a lot (more or less 460%) more effective at AF than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce 9800 GT 512MB		33600 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 27600 (460%)

Pixel Rate

The GeForce 9800 GT 512MB is much (approximately 220%) faster with regards to full screen anti-aliasing than the Radeon HD 6450 (OEM) 1GB, and also should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce 9800 GT 512MB		9600 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 6600 (220%)

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 information (in units of megabytes per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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