Phenom II X4 P940 vs Ryzen Threadripper 3990X

Primary details

Comparing Ryzen Threadripper 3990X and Phenom II X4 P940 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	34	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	9.21	no data
Market segment	Desktop processor	Laptop
Series	AMD Ryzen Threadripper	4x AMD Phenom II
Power efficiency	17.00	no data
Architecture codename	Matisse (2019−2020)	Champlain (2010−2011)
Release date	7 February 2020 (4 years ago)	4 October 2010 (14 years ago)
Launch price (MSRP)	$3,999	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen Threadripper 3990X 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	64 (Tetrahexaconta-Core)	4 (Quad-Core)
Threads	128	4
Base clock speed	2.9 GHz	no data
Boost clock speed	4.3 GHz	1.7 GHz
Bus rate	no data	3600 MHz
Multiplier	29	no data
L1 cache	96K (per core)	512 KB
L2 cache	512K (per core)	2 MB
L3 cache	256 MB	no data
Chip lithography	7 nm, 12 nm	45 nm
Die size	74 mm2	no data
Maximum case temperature (TCase)	95 °C	no data
Number of transistors	3,800 million	no data
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	+	-

Compatibility

Information on Ryzen Threadripper 3990X 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	1	no data
Socket	TR4	S1 (S1g4)
Power consumption (TDP)	280 Watt	25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen Threadripper 3990X and Phenom II X4 P940. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	MMX, 3DNow, SSE (1,2,3,4A), AMD64, Enhanced Virus Protection, Virtualization, HyperTransport 3.0
AES-NI	+	-
AVX	+	-
VirusProtect	-	+
Precision Boost 2	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen Threadripper 3990X and Phenom II X4 P940 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper 3990X and Phenom II X4 P940. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR3
Maximum memory size	256 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	102.403 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Ryzen Threadripper 3990X and Phenom II X4 P940.

PCIe version

4.0

no data

Pros & cons summary

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Recency	7 February 2020	4 October 2010
Physical cores	64	4
Threads	128	4
Chip lithography	7 nm	45 nm
Power consumption (TDP)	280 Watt	25 Watt

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