AMD Ryzen 9 3900 vs Intel Core i7-7820X

Comparative analysis of AMD Ryzen 9 3900 and Intel Core i7-7820X processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Advanced Technologies, Virtualization, Security & Reliability. Benchmark processor performance analysis: 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), PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score.

AMD Ryzen 9 3900

Intel Core i7-7820X

Differences

Reasons to consider the AMD Ryzen 9 3900

CPU is newer: launch date 2 year(s) 3 month(s) later
4 more cores, run more applications at once: 12 vs 8
8 more threads: 24 vs 16
Around 99900% higher clock speed: 4300 MHz vs 4.30 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm vs 14 nm
Around 50% 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
5.8x more L3 cache, more data can be stored in the L3 cache for quick access later
2.2x lower typical power consumption: 65 Watt vs 140 Watt
2.9x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 30.97 vs 10.666
Around 90% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 1.748 vs 0.92
Around 16% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 19.043 vs 16.376

Specifications (specs)
Launch date	24 Sep 2019 vs June 2017
Number of cores	12 vs 8
Number of threads	24 vs 16
Maximum frequency	4300 MHz vs 4.30 GHz
Manufacturing process technology	7 nm vs 14 nm
L1 cache	768 KB vs 64 KB (per core)
L2 cache	6 MB vs 256 KB (per core)
L3 cache	64 MB vs 11264 KB (shared)
Thermal Design Power (TDP)	65 Watt vs 140 Watt
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	30.97 vs 10.666
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.748 vs 0.92
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	19.043 vs 16.376

Reasons to consider the Intel Core i7-7820X

Around 4% higher maximum core temperature: 99°C vs 95 °C
2.2x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 159.198 vs 70.972
Around 21% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 5.968 vs 4.924

Specifications (specs)
Maximum core temperature	99°C vs 95 °C
Benchmarks
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	159.198 vs 70.972
CompuBench 1.5 Desktop - Video Composition (Frames/s)	5.968 vs 4.924

Compare benchmarks

CPU 1: AMD Ryzen 9 3900
CPU 2: Intel Core i7-7820X

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

30.97

10.666

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

70.972

159.198

CompuBench 1.5 Desktop - T-Rex (Frames/s)

CPU 1

CPU 2

1.748

0.92

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

4.924

5.968

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

19.043

16.376

Name	AMD Ryzen 9 3900	Intel Core i7-7820X
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	30.97	10.666
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	70.972	159.198
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.748	0.92
CompuBench 1.5 Desktop - Video Composition (Frames/s)	4.924	5.968
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	19.043	16.376
PassMark - Single thread mark		2521
PassMark - CPU mark		17194
Geekbench 4 - Single Core		1138
Geekbench 4 - Multi-Core		8814
3DMark Fire Strike - Physics Score		5958

Compare specifications (specs)

	AMD Ryzen 9 3900	Intel Core i7-7820X
Essentials
Architecture codename	Zen 2	Skylake
Launch date	24 Sep 2019	June 2017
OPN Tray	100-000000070
Place in performance rating	1371	1361
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$679
Price now		$499.99
Processor Number		i7-7820X
Series		Intel® Core™ X-series Processors
Status		Launched
Value for money (0-100)		10.93
Performance
64 bit support
Base frequency	3100 MHz	3.60 GHz
L1 cache	768 KB	64 KB (per core)
L2 cache	6 MB	256 KB (per core)
L3 cache	64 MB	11264 KB (shared)
Manufacturing process technology	7 nm	14 nm
Maximum core temperature	95 °C	99°C
Maximum frequency	4300 MHz	4.30 GHz
Number of cores	12	8
Number of threads	24	16
Unlocked
Bus Speed		8 GT/s DMI3
Maximum case temperature (TCase)		72 °C
Number of QPI Links		0
Memory
Max memory channels	2	4
Maximum memory bandwidth	47.68 GB/s
Maximum memory size	128 GB	128 GB
Supported memory types	DDR4-3200	DDR4-2666
Compatibility
Sockets supported	AM4	FCLGA2066
Thermal Design Power (TDP)	65 Watt	140 Watt
Low Halogen Options Available
Max number of CPUs in a configuration		1
Thermal Solution		PCG 2017X
Peripherals
Max number of PCIe lanes	20	28
PCI Express revision	4.0	3.0
PCIe configurations	1x16+x4, 2x8+x4, 1x8+2x4+x4
Scalability		1S Only
Advanced Technologies
Enhanced Virus Protection (EVP)
Fused Multiply-Add 3 (FMA3)
Intel® Advanced Vector Extensions (AVX)
Intel® Advanced Vector Extensions 2 (AVX2)
Enhanced Intel SpeedStep® technology
Instruction set extensions		Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Turbo Boost technology
Number of AVX-512 FMA Units		2
Virtualization
AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)