Phenom II X4 P940 vs Xeon Silver 4208

Primary details

Comparing Xeon Silver 4208 and Phenom II X4 P940 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1003	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	18.06	no data
Market segment	Server	Laptop
Series	Intel Xeon Silver	4x AMD Phenom II
Power efficiency	7.86	no data
Architecture codename	Cascade Lake (2019−2020)	Champlain (2010−2011)
Release date	2 April 2019 (5 years ago)	4 October 2010 (14 years ago)
Launch price (MSRP)	$417	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Silver 4208 and Phenom II X4 P940 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	2.1 GHz	no data
Boost clock speed	3.2 GHz	1.7 GHz
Bus rate	no data	3600 MHz
Multiplier	21	no data
L1 cache	512 KB	512 KB
L2 cache	8 MB	2 MB
L3 cache	11 MB	no data
Chip lithography	14 nm	45 nm
Maximum core temperature	78 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	-

Compatibility

Information on Xeon Silver 4208 and Phenom II X4 P940 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	2 (Multiprocessor)	no data
Socket	FCLGA3647	S1 (S1g4)
Power consumption (TDP)	85 Watt	25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Silver 4208 and Phenom II X4 P940. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	MMX, 3DNow, SSE (1,2,3,4A), AMD64, Enhanced Virus Protection, Virtualization, HyperTransport 3.0
AES-NI	+	-
AVX	+	-
VirusProtect	-	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Turbo Boost Max 3.0	-	no data
Deep Learning Boost	+	-

Security technologies

Xeon Silver 4208 and Phenom II X4 P940 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Silver 4208 and Phenom II X4 P940 are enumerated here.

AMD-V	-	+
VT-d	+	no data
VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4208 and Phenom II X4 P940. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2400	DDR3
Maximum memory size	1 TB	no data
Max memory channels	6	no data
Maximum memory bandwidth	115.212 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Xeon Silver 4208 and Phenom II X4 P940.

PCIe version	3.0	no data
PCI Express lanes	48	no data

Pros & cons summary

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Recency	2 April 2019	4 October 2010
Physical cores	8	4
Threads	16	4
Chip lithography	14 nm	45 nm
Power consumption (TDP)	85 Watt	25 Watt

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Should you still have questions on choice between Xeon Silver 4208 and Phenom II X4 P940, ask them in Comments section, and we shall answer.

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