Intel Core i5-9400T vs Intel Core i9-7920X

Comparative analysis of Intel Core i5-9400T and Intel Core i9-7920X processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization, Peripherals. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Core i5-9400T

Intel Core i9-7920X

Differences

Reasons to consider the Intel Core i5-9400T

CPU is newer: launch date 1 year(s) 0 month(s) later
4x lower typical power consumption: 35 Watt vs 140 Watt

Launch date	September 2018 vs September 2017
Thermal Design Power (TDP)	35 Watt vs 140 Watt

Reasons to consider the Intel Core i9-7920X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
6 more cores, run more applications at once: 12 vs 6
Around 139% higher clock speed: 4.30 GHz vs 1.8 GHz
2x 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
Around 56% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 19% better performance in PassMark - Single thread mark: 2496 vs 2100
2.8x better performance in PassMark - CPU mark: 23558 vs 8278

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	12 vs 6
Maximum frequency	4.30 GHz vs 1.8 GHz
L1 cache	64 KB (per core) vs 64K (per core)
L2 cache	256 KB (per core) vs 256K (per core)
L3 cache	14336 KB (shared) vs 9 MB (shared)
Benchmarks
PassMark - Single thread mark	2496 vs 2100
PassMark - CPU mark	23558 vs 8278

Compare benchmarks

CPU 1: Intel Core i5-9400T
CPU 2: Intel Core i9-7920X

PassMark - Single thread mark

CPU 1

CPU 2

2100

2496

PassMark - CPU mark

CPU 1

CPU 2

8278

23558

Name	Intel Core i5-9400T	Intel Core i9-7920X
PassMark - Single thread mark	2100	2496
PassMark - CPU mark	8278	23558
Geekbench 4 - Single Core		1115
Geekbench 4 - Multi-Core		11596
3DMark Fire Strike - Physics Score		10240
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		16.372
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		69.055
CompuBench 1.5 Desktop - T-Rex (Frames/s)		1.234
CompuBench 1.5 Desktop - Video Composition (Frames/s)		8.881
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		22.723

Compare specifications (specs)

	Intel Core i5-9400T	Intel Core i9-7920X
Essentials
Architecture codename	Coffee Lake	Skylake
Launch date	September 2018	September 2017
Place in performance rating	1168	1170
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$1,200
Price now		$1,019.99
Processor Number		i9-7920X
Series		Intel® Core™ X-series Processors
Status		Launched
Value for money (0-100)		6.71
Performance
64 bit support
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	256 KB (per core)
L3 cache	9 MB (shared)	14336 KB (shared)
Manufacturing process technology	14 nm	14 nm
Maximum case temperature (TCase)	72 °C	72 °C
Maximum frequency	1.8 GHz	4.30 GHz
Number of cores	6	12
Base frequency		2.90 GHz
Bus Speed		8 GT/s DMI3
Maximum core temperature		95°C
Number of QPI Links		0
Number of threads		24
Unlocked
Memory
Supported memory types	DDR4	DDR4-2666
Max memory channels		4
Maximum memory size		128 GB
Compatibility
Max number of CPUs in a configuration	1	1
Thermal Design Power (TDP)	35 Watt	140 Watt
Low Halogen Options Available
Sockets supported		FCLGA2066
Thermal Solution		PCG 2017X
Security & Reliability
Intel® Trusted Execution technology (TXT)
Execute Disable Bit (EDB)
Advanced Technologies
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Enhanced Intel SpeedStep® technology
Instruction set extensions		Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Turbo Boost technology
Number of AVX-512 FMA Units		2
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Peripherals
Max number of PCIe lanes		44
PCI Express revision		3.0
Scalability		1S Only