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Differences What are the advantages of each

Front view of Radeon HD 7790

Reasons to consider the
AMD Radeon HD 7790

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Much higher effective memory clock speed 6,000 MHz vs 1,600 MHz 3.8x higher effective memory clock speed
Better PassMark score 3,036 vs 546 More than 5.5x better PassMark score
Higher clock speed 1,000 MHz vs 750 MHz Around 35% higher clock speed
Significantly higher memory bandwidth 96 GB/s vs 25.6 GB/s 3.8x higher memory bandwidth
Better floating-point performance 1,792 GFLOPS vs 480 GFLOPS Around 3.8x better floating-point performance
Significantly better fire strike factor score 30.22 vs 3.1 More than 9.8x better fire strike factor score
Much higher memory clock speed 1,500 MHz vs 800 MHz Around 90% higher memory clock speed
Higher texture rate 56 GTexel/s vs 24 GTexel/s More than 2.2x higher texture rate
More shading units 896 vs 320 576 more shading units
Higher pixel rate 16 GPixel/s vs 6 GPixel/s Around 2.8x higher pixel rate
More texture mapping units 56 vs 32 24 more texture mapping units
More compute units 14 vs 4 10 more compute units
More render output processors 16 vs 8 Twice as many render output processors
Front view of Radeon HD 4670

Reasons to consider the
ATi Radeon HD 4670

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Lower TDP 59W vs 85W More than 30% lower TDP

Benchmarks Real world tests of Radeon HD 7790 vs 4670

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Radeon HD 7790
Radeon HD 4670

Fire Strike Factor Data courtesy FutureMark

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark


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