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Differences What are the advantages of each

Front view of Radeon HD 4890

Reasons to consider the
XFX Radeon HD 4890

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Higher clock speed 1,000 MHz vs 900 MHz More than 10% higher clock speed
Higher memory bandwidth 128 GB/s vs 98.5 GB/s Around 30% higher memory bandwidth
Better floating-point performance 1,600 GFLOPS vs 691.2 GFLOPS More than 2.2x better floating-point performance
More shading units 800 vs 192 608 more shading units
Higher pixel rate 16 GPixel/s vs 7.2 GPixel/s Around 2.2x higher pixel rate
Wider memory bus 256 bit vs 192 bit Around 35% wider memory bus
Front view of GeForce GTX 550 Ti

Reasons to consider the
Nvidia GeForce GTX 550 Ti

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Significantly better sky diver factor score 136.02 vs 2.27 Around 60x better sky diver factor score
More render output processors 24 vs 16 8 more render output processors
Lower TDP 116W vs 190W Around 40% lower TDP

Benchmarks Real world tests of Radeon HD 4890 vs GeForce GTX 550 Ti

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark

Reviews Word on the street


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