Whereas the CPU previously throttled its own speed to protect against overheating, the chipset can now send a signal (PROCHOT) to the processor instructing it to reduce power consumption. This can prevent damage to a voltage regulator that is working flat out.
Hyper-Threading: A Virtual Dual CPU System
Comparison of multi-threading and multitasking. Multi-threading distributes the load of an application over several (virtual) CPUs.
Doing this requires an operating system with a multi-kernel.
Behaves just like a dual CPU system: P4 with Hyper-Threading.
A conventional CPU without HT can carry out parallel commands, but cannot execute threads. The performance of a system therefore increases more or less in line with increases in clock rates, irrespective of the scalability of the particular platform. A dual CPU system, on the other hand, can process several threads simultaneously.
- Low-Cost Dual Processing: P4 At 3.06 GHz
- Low-Cost Dual Processing: P4 At 3.06 GHz, Continued
- Details On The P4 3.06 GHz
- All P4 Cores Compared
- A New Record: 82 Watts Power Dissipation
- High-Tech From 3 GHz: New Cooler Design For P4
- Bidirectional CPU Throttling: Protecting The Voltage Regulator
- Details Of The Test Setup: Asus P4T533-C And Radeon 9700 Pro
- Comparison: All The Chipsets For The P4
- Bandwidth Comparison Of SDRAM, DDR-SDRAM And RDRAM
- Benchmarks Under Windows XP
- OpenGL-Performance: Quake 3 Arena
- DirectX 7 Games: 3D Mark 2000
- DirectX 8 Hardcore Game: Comanche 4
- MP3-Audio-Encoding: Lame MP3
- Video-Encoding MPEG-4: Virtual Dub Und Divx 5.02 Pro
- SiSoft Sandra 2002 Benchmarks: CPU Und Multimedia
- Multimedia Performance: PC Mark 2002
- 3D-Rendering Performance: SPEC Viewperf 7
- Archiving: WinACE 2.2
- 3D-Rendering: Cinema 4D XL 7.303
- Office-/Internet-Performance: Sysmark 2002
- New Tom's Hardware Video: P4 Head-to-Head - 3.6 GHz V. 3.0 GHz
- History Of The Tom's Hardware Video
- Summary: In Some Cases The P4 3.0HT Can Even Beat The 3.6 GHz Version