Intel Pentium G645T vs Intel Pentium 4 HT 620

Comparative analysis of Intel Pentium G645T and Intel Pentium 4 HT 620 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Pentium G645T

Intel Pentium 4 HT 620

Differences

Reasons to consider the Intel Pentium G645T

CPU is newer: launch date 7 year(s) 6 month(s) later
1 more cores, run more applications at once: 2 vs 1
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 90 nm
4.6x more L1 cache, more data can be stored in the L1 cache for quick access later
2.4x lower typical power consumption: 35 Watt vs 84 Watt

Launch date	September 2012 vs February 2005
Number of cores	2 vs 1
Manufacturing process technology	32 nm vs 90 nm
L1 cache	64 KB (per core) vs 28 KB
Thermal Design Power (TDP)	35 Watt vs 84 Watt

Reasons to consider the Intel Pentium 4 HT 620

Around 12% higher clock speed: 2.8 GHz vs 2.5 GHz
Around 4% higher maximum core temperature: 67.7°C vs 65.0°C
4x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 77% better performance in Geekbench 4 - Single Core: 801 vs 452
Around 7% better performance in Geekbench 4 - Multi-Core: 906 vs 848

Specifications (specs)
Maximum frequency	2.8 GHz vs 2.5 GHz
Maximum core temperature	67.7°C vs 65.0°C
L2 cache	2048 KB vs 256 KB (per core)
Benchmarks
Geekbench 4 - Single Core	801 vs 452
Geekbench 4 - Multi-Core	906 vs 848

Compare benchmarks

CPU 1: Intel Pentium G645T
CPU 2: Intel Pentium 4 HT 620

Geekbench 4 - Single Core

CPU 1

CPU 2

452

801

Geekbench 4 - Multi-Core

CPU 1

CPU 2

848

906

Name	Intel Pentium G645T	Intel Pentium 4 HT 620
PassMark - Single thread mark	1131
PassMark - CPU mark	1228
Geekbench 4 - Single Core	452	801
Geekbench 4 - Multi-Core	848	906

Compare specifications (specs)

	Intel Pentium G645T	Intel Pentium 4 HT 620
Essentials
Architecture codename	Sandy Bridge	Prescott
Launch date	September 2012	February 2005
Place in performance rating	2446	2455
Processor Number	G645T	620
Series	Legacy Intel® Pentium® Processor	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.50 GHz	2.80 GHz
Bus Speed	5 GT/s DMI	800 MHz FSB
Die size	131 mm	135 mm2
L1 cache	64 KB (per core)	28 KB
L2 cache	256 KB (per core)	2048 KB
L3 cache	3072 KB (shared)
Manufacturing process technology	32 nm	90 nm
Maximum core temperature	65.0°C	67.7°C
Maximum frequency	2.5 GHz	2.8 GHz
Number of cores	2	1
Number of threads	2
Transistor count	504 million	169 million
Maximum case temperature (TCase)		68 °C
VID voltage range		1.200V-1.400V
Memory
Max memory channels	2
Maximum memory bandwidth	17 GB/s
Maximum memory size	32 GB
Supported memory types	DDR3 1066	DDR1, DDR2, DDR3
Graphics
Graphics base frequency	650 MHz
Graphics max dynamic frequency	1.10 GHz
Graphics max frequency	1.1 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics	Intel HD Graphics
Graphics interfaces
Number of displays supported	2
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm
Sockets supported	FCLGA1155	PLGA775
Thermal Design Power (TDP)	35 Watt	84 Watt
Peripherals
Max number of PCIe lanes	16
PCI Express revision	2.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
FSB parity
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)