Intel Core 2 Extreme QX9650 vs Intel Pentium 4 HT 520

Comparative analysis of Intel Core 2 Extreme QX9650 and Intel Pentium 4 HT 520 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score.

Intel Core 2 Extreme QX9650

Intel Pentium 4 HT 520

Differences

Reasons to consider the Intel Core 2 Extreme QX9650

CPU is newer: launch date 3 year(s) 5 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
3 more cores, run more applications at once: 4 vs 1
Around 7% higher clock speed: 3 GHz vs 2.8 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 90 nm
16x more L1 cache, more data can be stored in the L1 cache for quick access later
12x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 61% better performance in Geekbench 4 - Multi-Core: 1463 vs 906

Specifications (specs)
Launch date	November 2007 vs June 2004
Unlocked	Unlocked vs Locked
Number of cores	4 vs 1
Maximum frequency	3 GHz vs 2.8 GHz
Manufacturing process technology	45 nm vs 90 nm
L1 cache	256 KB vs 16 KB
L2 cache	12288 KB vs 1024 KB
Benchmarks
Geekbench 4 - Multi-Core	1463 vs 906

Reasons to consider the Intel Pentium 4 HT 520

Around 5% higher maximum core temperature: 67.7°C vs 64.5°C
Around 55% lower typical power consumption: 84 Watt vs 130 Watt
Around 72% better performance in Geekbench 4 - Single Core: 801 vs 465

Specifications (specs)
Maximum core temperature	67.7°C vs 64.5°C
Thermal Design Power (TDP)	84 Watt vs 130 Watt
Benchmarks
Geekbench 4 - Single Core	801 vs 465

Compare benchmarks

CPU 1: Intel Core 2 Extreme QX9650
CPU 2: Intel Pentium 4 HT 520

Geekbench 4 - Single Core

CPU 1

CPU 2

465

801

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1463

906

Name	Intel Core 2 Extreme QX9650	Intel Pentium 4 HT 520
Geekbench 4 - Single Core	465	801
Geekbench 4 - Multi-Core	1463	906
3DMark Fire Strike - Physics Score	4864

Compare specifications (specs)

	Intel Core 2 Extreme QX9650	Intel Pentium 4 HT 520
Essentials
Architecture codename	Yorkfield	Prescott
Launch date	November 2007	June 2004
Place in performance rating	2536	2523
Processor Number	QX9650	520
Series	Legacy Intel® Core™ Processors	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.00 GHz	2.80 GHz
Bus Speed	1333 MHz FSB	800 MHz FSB
Die size	214 mm2	112 mm2
L1 cache	256 KB	16 KB
L2 cache	12288 KB	1024 KB
Manufacturing process technology	45 nm	90 nm
Maximum case temperature (TCase)	64 °C
Maximum core temperature	64.5°C	67.7°C
Maximum frequency	3 GHz	2.8 GHz
Number of cores	4	1
Transistor count	820 million	125 million
Unlocked
VID voltage range	0.8500V-1.3625V	1.200V-1.425V
Memory
Supported memory types	DDR1, DDR2, DDR3	DDR1, DDR2, DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	LGA775	PLGA775
Thermal Design Power (TDP)	130 Watt	84 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)