The power usage results look identical for the most part, but if you look closely you will see that the GDDR5-equipped cards use about 20 more wattage under load than their DDR3 counterparts.
Temperatures look similar too. The Gigabyte GeForce GT 220 DDR3 and PowerColor PCS+ HD5550 GDDR5 are exceptions, as both cards employ powerful custom-cooling blocks and fans. The passive, silent coolers on the HIS cards do a respectable job of keeping the temperatures low.
The passively-cooled HIS cards show off their advantage in the noise benchmark, although the PowerColor PCS+ card and Gigabyte GT 220 also do well in this arena.
- Enter The Radeon HD 5550
- The Radeon HD 5550 Architecture
- HIS Radeon HD 5550 DDR3 And GDDR5
- PowerColor PCS+ HD 5550 GDDR5
- HIS Radeon HD 5570 GDDR5
- Test Setup And Benchmarks
- Benchmark Results: 3DMark Vantage
- Benchmark Results: Crysis
- Benchmark Results: Far Cry 2
- Benchmark Results: World In Conflict
- Benchmark Results: Aliens Vs Predator (DirectX 11)
- Benchmark Results: DiRT 2 (DirectX 11)
- Overclocking Benchmarks
- Power, Temperature, And Noise Benchmarks
- Conclusion: GDDR5-Equipped Cards Show Promise