GeForce 9500 GT 512MB GDDR3 vs Radeon HD 6450 (OEM) 1GB

Intro

Compare those specs to the Radeon HD 6450 (OEM) 1GB, which features GPU clock speed of 750 MHz, and 1024 MB of GDDR5 memory running at 900 MHz through a 64-bit bus. It also features 160 Stream Processors, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
GeForce 9500 GT 512MB GDDR3		50 Watts
	Difference: 19 Watts (61%)

Memory Bandwidth

The Radeon HD 6450 (OEM) 1GB should theoretically perform a little bit faster than the GeForce 9500 GT 512MB GDDR3 overall. (explain)

Radeon HD 6450 (OEM) 1GB		28800 MB/sec
GeForce 9500 GT 512MB GDDR3		25600 MB/sec
	Difference: 3200 (13%)

Texel Rate

The GeForce 9500 GT 512MB GDDR3 should be much (more or less 47%) better at AF than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce 9500 GT 512MB GDDR3		8800 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 2800 (47%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 9500 GT 512MB GDDR3 is the winner, and very much so. (explain)

GeForce 9500 GT 512MB GDDR3		4400 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 1400 (47%)

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 max amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.