Intel Pentium 4 HT 521 vs Intel Pentium 4 HT 620

Comparative analysis of Intel Pentium 4 HT 521 and Intel Pentium 4 HT 620 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.

Intel Pentium 4 HT 521

Intel Pentium 4 HT 620

Differences

Reasons to consider the Intel Pentium 4 HT 521

CPU is newer: launch date 4 month(s) later

Launch date	June 2005 vs February 2005

Reasons to consider the Intel Pentium 4 HT 620

Around 75% more L1 cache; more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later

L1 cache	28 KB vs 16 KB
L2 cache	2048 KB vs 1024 KB

Compare benchmarks

CPU 1: Intel Pentium 4 HT 521
CPU 2: Intel Pentium 4 HT 620

Geekbench 4 - Single Core

CPU 1

CPU 2

801

Geekbench 4 - Multi-Core

CPU 1

CPU 2

906

Name	Intel Pentium 4 HT 521	Intel Pentium 4 HT 620
Geekbench 4 - Single Core	801	801
Geekbench 4 - Multi-Core	906	906

Compare specifications (specs)

	Intel Pentium 4 HT 521	Intel Pentium 4 HT 620
Essentials
Architecture codename	Prescott	Prescott
Launch date	June 2005	February 2005
Place in performance rating	2526	2527
Processor Number	521	620
Series	Legacy Intel® Pentium® Processor	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.80 GHz	2.80 GHz
Bus Speed	800 MHz FSB	800 MHz FSB
Die size	112 mm2	135 mm2
L1 cache	16 KB	28 KB
L2 cache	1024 KB	2048 KB
Manufacturing process technology	90 nm	90 nm
Maximum core temperature	67.7°C	67.7°C
Maximum frequency	2.8 GHz	2.8 GHz
Number of cores	1	1
Transistor count	125 million	169 million
VID voltage range	1.200V-1.425V	1.200V-1.400V
Maximum case temperature (TCase)		68 °C
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
Sockets supported	PLGA775	PLGA775
Thermal Design Power (TDP)	84 Watt	84 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
FSB parity
Virtualization
Intel® Virtualization Technology (VT-x)