Phenom II X4 X940 BE vs Ryzen 7 1800X

Primary details

Comparing Ryzen 7 1800X and Phenom II X4 X940 BE processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	749	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.11	no data
Market segment	Desktop processor	Laptop
Series	AMD Ryzen 7	4x AMD Phenom II
Power efficiency	10.26	no data
Architecture codename	Zen (2017−2020)	Champlain (2010−2011)
Release date	2 March 2017 (7 years ago)	1 January 2011 (13 years ago)
Launch price (MSRP)	$499	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen 7 1800X and Phenom II X4 X940 BE basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	8 (Octa-Core)	4 (Quad-Core)
Threads	16	4
Base clock speed	3.6 GHz	no data
Boost clock speed	4 GHz	2.4 GHz
Bus rate	4 × 8 GT/s	3600 MHz
Multiplier	36	no data
L1 cache	768 KB	256 KB
L2 cache	4096 KB	2 MB
L3 cache	16384 KB	no data
Chip lithography	14 nm	45 nm
Die size	192 mm2	no data
Number of transistors	4,800 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on Ryzen 7 1800X and Phenom II X4 X940 BE compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1 (Uniprocessor)	no data
Socket	AM4	S1
Power consumption (TDP)	95 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 1800X and Phenom II X4 X940 BE. You'll probably need this information if you require some particular technology.

Instruction set extensions	XFR, FMA3, SSE 4.2, AVX2, SMT	HyperTransport 3.0, Enhanced Virus Protection, AMD64, SSE4A, unlocked multiplier
AES-NI	+	-
FMA	FMA3	-
AVX	+	-
VirusProtect	-	+
XFR	+	-
SenseMI	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 1800X and Phenom II X4 X940 BE are enumerated here.

AMD-V

+

-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 1800X and Phenom II X4 X940 BE. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR3
Maximum memory size	64 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	42.671 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 1800X and Phenom II X4 X940 BE.

PCIe version	n/a	no data
PCI Express lanes	20	no data

Pros & cons summary

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Recency	2 March 2017	1 January 2011
Physical cores	8	4
Threads	16	4
Chip lithography	14 nm	45 nm
Power consumption (TDP)	95 Watt	45 Watt

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Should you still have questions on choice between Ryzen 7 1800X and Phenom II X4 X940 BE, ask them in Comments section, and we shall answer.

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