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

Intro

Compare all of that to the Radeon HD 6450 (OEM), which has a core clock frequency of 625 MHz and a GDDR3 memory speed of 800 MHz. It also uses a 64-bit bus, and makes use of a 40 nm design. It features 160 SPUs, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically speaking, the GeForce 9500 GT 1GB GDDR3 should be 100% faster than the Radeon HD 6450 (OEM) in general, due to its greater data rate. (explain)

GeForce 9500 GT 1GB GDDR3		25600 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 12800 (100%)

Texel Rate

The GeForce 9500 GT 1GB GDDR3 is quite a bit (about 76%) faster with regards to anisotropic filtering than the Radeon HD 6450 (OEM). (explain)

GeForce 9500 GT 1GB GDDR3		8800 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 3800 (76%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 9500 GT 1GB GDDR3 is a better choice, and very much so. (explain)

GeForce 9500 GT 1GB GDDR3		4400 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 1900 (76%)

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 information (measured in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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 bandwidth is, the lower the ability to get to the maximum fill rate.