GeForce GTX 260 vs Radeon HD 6450 (OEM)

Intro

Compare those specifications to the Radeon HD 6450 (OEM), which has a GPU core clock speed of 625 MHz, and 512 MB of GDDR3 memory running at 800 MHz through a 64-bit bus. It also features 160 Stream Processors, 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 GTX 260		182 Watts
	Difference: 151 Watts (487%)

Memory Bandwidth

Theoretically, the GeForce GTX 260 should be a lot faster than the Radeon HD 6450 (OEM) in general. (explain)

GeForce GTX 260		111888 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 99088 (774%)

Texel Rate

The GeForce GTX 260 will be quite a bit (approximately 637%) more effective at anisotropic filtering than the Radeon HD 6450 (OEM). (explain)

GeForce GTX 260		36864 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 31864 (637%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 260 is superior to the Radeon HD 6450 (OEM), by a large margin. (explain)

GeForce GTX 260		16128 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 13628 (545%)

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 max amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the 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 amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total texture units by the core 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 in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.