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Differences What are the advantages of each

Front view of Radeon HD 4870 X2

Reasons to consider the
ATi Radeon HD 4870 X2

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Is dual GPU Yes vs No About half of graphics cards are dual GPU
Much higher memory bandwidth 230.4 GB/s vs 86.4 GB/s Around 2.8x higher memory bandwidth
Much wider memory bus 512 bit vs 128 bit 4x wider memory bus
Significantly more shading units 1,600 vs 640 960 more shading units
More render output processors 32 vs 16 Twice as many render output processors
More texture mapping units 80 vs 40 Twice as many texture mapping units
Slightly better floating-point performance 2,240 GFLOPS vs 1,728 GFLOPS Around 30% better floating-point performance
Front view of GeForce GTX 750 Ti

Reasons to consider the
Nvidia GeForce GTX 750 Ti

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Better PassMark score 3,699 vs 1,279 Around 3x better PassMark score
Significantly higher clock speed 1,020 MHz vs 700 MHz More than 45% higher clock speed
Significantly higher effective memory clock speed 5,400 MHz vs 3,600 MHz 50% higher effective memory clock speed
Much higher memory clock speed 1,502 MHz vs 900 MHz More than 65% higher memory clock speed
Higher texture rate 82.64 GTexel/s vs 56 GTexel/s Around 50% higher texture rate
Much lower TDP 60W vs 286W 4.8x lower TDP

Benchmarks Real world tests of Radeon HD 4870 X2 vs GeForce GTX 750 Ti

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Cloud Gate Factor Data courtesy FutureMark

Reviews Word on the street

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