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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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Significantly higher clock speed 1,000 MHz vs 625 MHz 60% higher clock speed
Significantly higher effective memory clock speed 4,000 MHz vs 1,986 MHz More than 2x higher effective memory clock speed
Higher memory bandwidth 128 GB/s vs 63.55 GB/s More than 2x higher memory bandwidth
Better floating-point performance 1,600 GFLOPS vs 1,000 GFLOPS 60% better floating-point performance
Slightly higher texture rate 40 GTexel/s vs 25 GTexel/s 60% higher texture rate
Front view of Radeon HD 4850

Reasons to consider the
ATi Radeon HD 4850

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Significantly better sky diver factor score 124.95 vs 2.27 More than 55x better sky diver factor score
Lower TDP 110W vs 190W More than 40% lower TDP

Benchmarks Real world tests of Radeon HD 4890 vs 4850

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Radeon HD 4890
3,358.98
Radeon HD 4850
3,349.68

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark

Reviews Word on the street

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