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Differences What are the advantages of each

Front view of Radeon HD 3870 X2

Reasons to consider the
ATi Radeon HD 3870 X2

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Is dual GPU Yes vs No About half of graphics cards are dual GPU
Higher memory bandwidth 115.32 GB/s vs 73.6 GB/s More than 55% higher memory bandwidth
Slightly higher clock speed 825 MHz vs 750 MHz 10% higher clock speed
Higher pixel rate 26.4 GPixel/s vs 12 GPixel/s Around 2.2x higher pixel rate
Much wider memory bus 512 bit vs 256 bit 2x wider memory bus
Better floating-point performance 1,056 GFLOPS vs 483.8 GFLOPS Around 2.2x better floating-point performance
More render output processors 32 vs 16 Twice as many render output processors
More shading units 640 vs 128 512 more shading units
Front view of GeForce GTS 250

Reasons to consider the
ZOTAC GeForce GTS 250

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Higher effective memory clock speed 2,300 MHz vs 1,802 MHz Around 30% higher effective memory clock speed
Higher texture rate 48 GTexel/s vs 26.4 GTexel/s More than 80% higher texture rate
More texture mapping units 64 vs 32 Twice as many texture mapping units
Higher memory clock speed 1,150 MHz vs 901 MHz Around 30% higher memory clock speed

Benchmarks Real world tests of Radeon HD 3870 X2 vs GeForce GTS 250

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Cloud Gate Factor Data courtesy FutureMark

Reviews Word on the street


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