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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 memory bandwidth 128 GB/s vs 80 GB/s 60% higher memory bandwidth
Better floating-point performance 1,600 GFLOPS vs 812.5 GFLOPS More than 95% better floating-point performance
Significantly wider memory bus 256 bit vs 128 bit 2x wider memory bus
More shading units 800 vs 384 416 more shading units
Slightly higher pixel rate 16 GPixel/s vs 8.46 GPixel/s Around 90% higher pixel rate
Front view of GeForce GTX 650

Reasons to consider the
Colorful GeForce GTX 650

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Higher effective memory clock speed 5,000 MHz vs 4,000 MHz 25% higher effective memory clock speed
Much better sky diver factor score 151.81 vs 2.27 Around 67x better sky diver factor score
Higher memory clock speed 1,250 MHz vs 1,000 MHz 25% higher memory clock speed
Much lower TDP 65W vs 190W 2.9x lower TDP

Benchmarks Real world tests of Radeon HD 4890 vs GeForce GTX 650

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Radeon HD 4890
3,354.44
GeForce GTX 650
3,345.54

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark

Reviews Word on the street

Radeon HD 4890  vs GeForce GTX 650 

8.7
8.6
You may combine up to four HD 4890 cards in CrossFireX for better performance and image quality.
Radeon HD 4890

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