Intel Core i5-8400T vs Intel Pentium G640T

Comparative analysis of Intel Core i5-8400T and Intel Pentium G640T processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, 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 Core i5-8400T

Intel Pentium G640T

Differences

Reasons to consider the Intel Core i5-8400T

CPU is newer: launch date 5 year(s) 10 month(s) later
4 more cores, run more applications at once: 6 vs 2
4 more threads: 6 vs 2
Around 38% higher clock speed: 3.30 GHz vs 2.4 GHz
Around 54% higher maximum core temperature: 100°C vs 65.0°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 32 nm
3x more L1 cache, more data can be stored in the L1 cache for quick access later
3x more L2 cache, more data can be stored in the L2 cache for quick access later
3x more L3 cache, more data can be stored in the L3 cache for quick access later
4x more maximum memory size: 128 GB vs 32 GB
Around 74% better performance in PassMark - Single thread mark: 1920 vs 1102
6.5x better performance in PassMark - CPU mark: 7450 vs 1139
Around 14% better performance in Geekbench 4 - Multi-Core: 3657 vs 3203

Specifications (specs)
Launch date	April 2018 vs June 2012
Number of cores	6 vs 2
Number of threads	6 vs 2
Maximum frequency	3.30 GHz vs 2.4 GHz
Maximum core temperature	100°C vs 65.0°C
Manufacturing process technology	14 nm vs 32 nm
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)
L3 cache	9216 KB (shared) vs 3072 KB (shared)
Maximum memory size	128 GB vs 32 GB
Benchmarks
PassMark - Single thread mark	1920 vs 1102
PassMark - CPU mark	7450 vs 1139
Geekbench 4 - Multi-Core	3657 vs 3203

Reasons to consider the Intel Pentium G640T

2.4x better performance in Geekbench 4 - Single Core: 2071 vs 861

Benchmarks
Geekbench 4 - Single Core	2071 vs 861

Compare benchmarks

CPU 1: Intel Core i5-8400T
CPU 2: Intel Pentium G640T

PassMark - Single thread mark

CPU 1

CPU 2

1920

1102

PassMark - CPU mark

CPU 1

CPU 2

7450

1139

Geekbench 4 - Single Core

CPU 1

CPU 2

861

2071

Geekbench 4 - Multi-Core

CPU 1

CPU 2

3657

3203

Name	Intel Core i5-8400T	Intel Pentium G640T
PassMark - Single thread mark	1920	1102
PassMark - CPU mark	7450	1139
Geekbench 4 - Single Core	861	2071
Geekbench 4 - Multi-Core	3657	3203

Compare specifications (specs)

	Intel Core i5-8400T	Intel Pentium G640T
Essentials
Architecture codename	Coffee Lake	Sandy Bridge
Launch date	April 2018	June 2012
Place in performance rating	1585	1571
Price now	$179
Processor Number	i5-8400T	G640T
Series	8th Generation Intel® Core™ i5 Processors	Legacy Intel® Pentium® Processor
Status	Launched	Discontinued
Value for money (0-100)	15.83
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	1.70 GHz	2.40 GHz
Bus Speed	8 GT/s DMI3	5 GT/s DMI
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	9216 KB (shared)	3072 KB (shared)
Manufacturing process technology	14 nm	32 nm
Maximum case temperature (TCase)	72 °C
Maximum core temperature	100°C	65.0°C
Maximum frequency	3.30 GHz	2.4 GHz
Number of cores	6	2
Number of threads	6	2
Die size		131 mm
Transistor count		504 million
Memory
Max memory channels	2	2
Maximum memory bandwidth	41.6 GB/s	17 GB/s
Maximum memory size	128 GB	32 GB
Supported memory types	DDR4-2666	DDR3 1066
Graphics
Device ID	0x3E92
Graphics base frequency	350 MHz	650 MHz
Graphics max dynamic frequency	1.05 GHz	1.10 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	64 GB
Processor graphics	Intel® UHD Graphics 630	Intel HD Graphics
Graphics max frequency		1.1 GHz
Intel® Flexible Display Interface (Intel® FDI)
Graphics interfaces
Number of displays supported	3	2
Wireless Display (WiDi) support
Graphics image quality
4K resolution support
Max resolution over DisplayPort	4096x2304@60Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over HDMI 1.4	4096x2304@24Hz
Graphics API support
DirectX	12
OpenGL	4.5
Compatibility
Configurable TDP-down	25 W
Configurable TDP-down Frequency	1.20 GHz
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	FCLGA1151	FCLGA1155
Thermal Design Power (TDP)	35 Watt	35 Watt
Thermal Solution	PCG 2015A (35W)
Peripherals
Max number of PCIe lanes	16	16
PCI Express revision	3.0	2.0
PCIe configurations	Up to 1x16, 2x8, 1x8+2x4
Scalability	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Flexible Display interface (FDI)
Intel® Fast Memory Access
Intel® Flex Memory Access
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)