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AMD Radeon HD 7770

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Front view of Radeon HD 7770

Differences What are the advantages of each

Front view of Radeon HD 7770

Reasons to consider the
AMD Radeon HD 7770

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Higher clock speed 1,000 MHz vs 800 MHz 25% higher clock speed
Better 3DMark06 score 19,307 vs 16,670 More than 15% better 3DMark06 score
Higher effective memory clock speed 4,500 MHz vs 4,000 MHz Around 15% higher effective memory clock speed
Better sky diver factor score 221.64 vs 161.47 More than 35% better sky diver factor score
Higher memory clock speed 1,125 MHz vs 1,000 MHz Around 15% higher memory clock speed
Significantly lower TDP 80W vs 175W 2.2x lower TDP
Slightly better PassMark direct compute score 1,403 vs 1,020 Around 40% better PassMark direct compute score
Front view of Radeon HD 5830

Reasons to consider the
ATi Radeon HD 5830

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Higher memory bandwidth 128 GB/s vs 72 GB/s Around 80% higher memory bandwidth
Slightly better floating-point performance 1,792 GFLOPS vs 1,280 GFLOPS 40% better floating-point performance
More shading units 1,120 vs 640 480 more shading units
Wider memory bus 256 bit vs 128 bit 2x wider memory bus
More texture mapping units 56 vs 40 16 more texture mapping units
Slightly more compute units 14 vs 10 4 more compute units

Benchmarks Real world tests of Radeon HD 7770 vs 5830

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

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

3DMark Vantage Graphics Industry standard benchmark that tests DirectX 10 GPU performance

Fire Strike Factor Data courtesy FutureMark

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark

PassMark Direct Compute Measures performance of general-purpose computing using Microsoft DirectCompute

CLBenchmark Raytrace Measures compute performance using OpenCL to do raytracing

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