GeForce 9800 GTX+ vs Radeon HD 6450 (OEM)

Intro

Compare those specifications to the Radeon HD 6450 (OEM), which comes with a core clock frequency of 625 MHz and a GDDR3 memory frequency of 800 MHz. It also makes use of a 64-bit memory bus, and uses a 40 nm design. It is comprised of 160 SPUs, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 114 Watts (368%)

Memory Bandwidth

As far as performance goes, the GeForce 9800 GTX+ should theoretically be a lot superior to the Radeon HD 6450 (OEM) overall. (explain)

GeForce 9800 GTX+		70400 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 57600 (450%)

Texel Rate

The GeForce 9800 GTX+ is quite a bit (approximately 845%) faster with regards to anisotropic filtering than the Radeon HD 6450 (OEM). (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 42232 (845%)

Pixel Rate

The GeForce 9800 GTX+ will be much (more or less 372%) more effective at anti-aliasing than the Radeon HD 6450 (OEM), and also should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce 9800 GTX+		11808 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 9308 (372%)

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 (counted in MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 can be processed per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines 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 is also dependant 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.