AMD Athlon X4 850 vs Intel Core i5-8400T

Comparative analysis of AMD Athlon X4 850 and Intel Core i5-8400T processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

AMD Athlon X4 850

Intel Core i5-8400T

Differences

Reasons to consider the AMD Athlon X4 850

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 18% higher clock speed: 3.9 GHz vs 3.30 GHz

Unlocked	Unlocked vs Locked
Maximum frequency	3.9 GHz vs 3.30 GHz

Reasons to consider the Intel Core i5-8400T

CPU is newer: launch date 2 year(s) 9 month(s) later
2 more cores, run more applications at once: 6 vs 4
2 more threads: 6 vs 4
Around 11% higher maximum core temperature: 100°C vs 90°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 28 nm
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
393216x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 86% lower typical power consumption: 35 Watt vs 65 Watt
Around 22% better performance in PassMark - Single thread mark: 1920 vs 1575
2.2x better performance in PassMark - CPU mark: 7432 vs 3366

Specifications (specs)
Launch date	April 2018 vs Jul 2015
Number of cores	6 vs 4
Number of threads	6 vs 4
Maximum core temperature	100°C vs 90°C
Manufacturing process technology	14 nm vs 28 nm
L1 cache	64 KB (per core) vs 256K
L2 cache	256 KB (per core) vs 4MB
Thermal Design Power (TDP)	35 Watt vs 65 Watt
Benchmarks
PassMark - Single thread mark	1920 vs 1575
PassMark - CPU mark	7432 vs 3366

Compare benchmarks

CPU 1: AMD Athlon X4 850
CPU 2: Intel Core i5-8400T

PassMark - Single thread mark

CPU 1

CPU 2

1575

1920

PassMark - CPU mark

CPU 1

CPU 2

3366

7432

Name	AMD Athlon X4 850	Intel Core i5-8400T
PassMark - Single thread mark	1575	1920
PassMark - CPU mark	3366	7432
Geekbench 4 - Single Core		861
Geekbench 4 - Multi-Core		3657

Compare specifications (specs)

	AMD Athlon X4 850	Intel Core i5-8400T
Essentials
Architecture codename	Godaveri	Coffee Lake
Launch date	Jul 2015	April 2018
Place in performance rating	1512	1502
Price now		$179
Processor Number		i5-8400T
Series		8th Generation Intel® Core™ i5 Processors
Status		Launched
Value for money (0-100)		15.83
Vertical segment		Desktop
Performance
Base frequency	3.2 GHz	1.70 GHz
Die size	245 mm²
L1 cache	256K	64 KB (per core)
L2 cache	4MB	256 KB (per core)
Manufacturing process technology	28 nm	14 nm
Maximum core temperature	90°C	100°C
Maximum frequency	3.9 GHz	3.30 GHz
Number of cores	4	6
Number of threads	4	6
Transistor count	2,411 million
Unlocked
64 bit support
Bus Speed		8 GT/s DMI3
L3 cache		9216 KB (shared)
Maximum case temperature (TCase)		72 °C
Memory
ECC memory support
Supported memory types	DDR3-2133 MHz, Dual-channel	DDR4-2666
Max memory channels		2
Maximum memory bandwidth		41.6 GB/s
Maximum memory size		128 GB
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	FM2+	FCLGA1151
Thermal Design Power (TDP)	65 Watt	35 Watt
Configurable TDP-down		25 W
Configurable TDP-down Frequency		1.20 GHz
Low Halogen Options Available
Package Size		37.5mm x 37.5mm
Thermal Solution		PCG 2015A (35W)
Peripherals
PCIe configurations	Gen 3, 16 Lanes, (CPU only)	Up to 1x16, 2x8, 1x8+2x4
Max number of PCIe lanes		16
PCI Express revision		3.0
Scalability		1S Only
Graphics
Device ID		0x3E92
Graphics base frequency		350 MHz
Graphics max dynamic frequency		1.05 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
Graphics interfaces
Number of displays supported		3
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
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 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
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)