Intel Core i9-7940X vs AMD Phenom X4 9850B

Comparative analysis of Intel Core i9-7940X and AMD Phenom X4 9850B processors for all known characteristics in the following categories: Essentials, Performance, Memory, 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, 3DMark Fire Strike - Physics Score.

Intel Core i9-7940X

AMD Phenom X4 9850B

Differences

Reasons to consider the Intel Core i9-7940X

CPU is newer: launch date 9 year(s) 1 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
10 more cores, run more applications at once: 14 vs 4
Around 72% higher clock speed: 4.30 GHz vs 2.5 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 65 nm
Around 75% more L1 cache; more data can be stored in the L1 cache for quick access later
7x more L2 cache, more data can be stored in the L2 cache for quick access later
9.6x more L3 cache, more data can be stored in the L3 cache for quick access later
2.5x better performance in PassMark - Single thread mark: 2490 vs 992
13.2x better performance in PassMark - CPU mark: 25656 vs 1946

Specifications (specs)
Launch date	September 2017 vs August 2008
Unlocked	Unlocked vs Locked
Number of cores	14 vs 4
Maximum frequency	4.30 GHz vs 2.5 GHz
Manufacturing process technology	14 nm vs 65 nm
L1 cache	64 KB (per core) vs 128 KB (per core)
L2 cache	1024 KB (per core) vs 512 KB (per core)
L3 cache	19712 KB (shared) vs 2048 KB (shared)
Benchmarks
PassMark - Single thread mark	2490 vs 992
PassMark - CPU mark	25656 vs 1946

Reasons to consider the AMD Phenom X4 9850B

Around 74% lower typical power consumption: 95 Watt vs 165 Watt

Thermal Design Power (TDP)	95 Watt vs 165 Watt

Compare benchmarks

CPU 1: Intel Core i9-7940X
CPU 2: AMD Phenom X4 9850B

PassMark - Single thread mark

CPU 1

CPU 2

2490

992

PassMark - CPU mark

CPU 1

CPU 2

25656

1946

Name	Intel Core i9-7940X	AMD Phenom X4 9850B
PassMark - Single thread mark	2490	992
PassMark - CPU mark	25656	1946
Geekbench 4 - Single Core	1153
Geekbench 4 - Multi-Core	12928
3DMark Fire Strike - Physics Score	10950

Compare specifications (specs)

	Intel Core i9-7940X	AMD Phenom X4 9850B
Essentials
Architecture codename	Skylake	Agena
Launch date	September 2017	August 2008
Launch price (MSRP)	$1,399
Place in performance rating	718	2282
Price now	$1,129.99
Processor Number	i9-7940X
Series	Intel® Core™ X-series Processors
Status	Launched
Value for money (0-100)	6.63
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.10 GHz
Bus Speed	8 GT/s DMI3
L1 cache	64 KB (per core)	128 KB (per core)
L2 cache	1024 KB (per core)	512 KB (per core)
L3 cache	19712 KB (shared)	2048 KB (shared)
Manufacturing process technology	14 nm	65 nm
Maximum core temperature	102°C
Maximum frequency	4.30 GHz	2.5 GHz
Number of cores	14	4
Number of QPI Links	0
Number of threads	28
Unlocked
Die size		285 mm
Transistor count		450 million
Memory
Max memory channels	4
Maximum memory size	128 GB
Supported memory types	DDR4-2666
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Sockets supported	FCLGA2066	AM2+
Thermal Design Power (TDP)	165 Watt	95 Watt
Thermal Solution	PCG 2017X
Peripherals
Max number of PCIe lanes	44
PCI Express revision	3.0
Scalability	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
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)
AMD Virtualization (AMD-V™)