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Differences What are the advantages of each

Front view of Radeon HD 7850

Reasons to consider the
AMD Radeon HD 7850

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Better PassMark score 3,813 vs 2,599 More than 45% better PassMark score
Higher clock speed 860 MHz vs 725 MHz Around 20% higher clock speed
Higher effective memory clock speed 4,800 MHz vs 4,000 MHz 20% higher effective memory clock speed
Better fire strike factor score 43.94 vs 33.32 More than 30% better fire strike factor score
Higher memory clock speed 1,200 MHz vs 1,000 MHz 20% higher memory clock speed
Much lower TDP 130W vs 294W 2.3x lower TDP
Better PassMark direct compute score 1,854 vs 1,209 Around 55% better PassMark direct compute score
Front view of Radeon HD 5970

Reasons to consider the
ATi Radeon HD 5970

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Is dual GPU Yes vs No About half of graphics cards are dual GPU
Significantly higher memory bandwidth 256 GB/s vs 153.6 GB/s More than 65% higher memory bandwidth
Significantly better floating-point performance 4,640 GFLOPS vs 1,761.3 GFLOPS Around 2.8x better floating-point performance
Many more shading units 3,200 vs 1,024 2176 more shading units
Higher texture rate 116 GTexel/s vs 55 GTexel/s More than 2x higher texture rate
Many more texture mapping units 160 vs 64 96 more texture mapping units
Significantly more render output processors 64 vs 32 Twice as many render output processors
Higher pixel rate 46.4 GPixel/s vs 27.52 GPixel/s Around 70% higher pixel rate
Significantly more compute units 40 vs 16 24 more compute units
Much wider memory bus 512 bit vs 256 bit 2x wider memory bus

Benchmarks Real world tests of Radeon HD 7850 vs 5970

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

3DMark Vantage (Texture Fill) Industry standard benchmark that tests DirectX performance

3DMark 11 Graphics Industry standard benchmark that tests DirectX 11 GPU performance

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Radeon HD 7850
Radeon HD 5970

Manhattan (GFXBench 3.0) Data courtesy CompuBench

Radeon HD 7850
Radeon HD 5970

Fire Strike Factor Data courtesy FutureMark

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark

Reviews Word on the street

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