Phenom X4 9750B vs Ryzen Threadripper 3990X

Primary details

Comparing Ryzen Threadripper 3990X and Phenom X4 9750B processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	33	2489
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	9.14	no data
Market segment	Desktop processor	Desktop processor
Series	AMD Ryzen Threadripper	no data
Power efficiency	17.00	0.95
Architecture codename	Matisse (2019−2020)	Agena (2007−2008)
Release date	7 February 2020 (4 years ago)	August 2008 (16 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 X4 9750B 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	2.4 GHz
Multiplier	29	no data
L1 cache	96K (per core)	128 KB (per core)
L2 cache	512K (per core)	512 KB (per core)
L3 cache	256 MB	2 MB (shared)
Chip lithography	7 nm, 12 nm	65 nm
Die size	74 mm2	285 mm2
Maximum case temperature (TCase)	95 °C	no data
Number of transistors	3,800 million	450 million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	+	-

Compatibility

Information on Ryzen Threadripper 3990X and Phenom X4 9750B 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	1
Socket	TR4	AM2+
Power consumption (TDP)	280 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen Threadripper 3990X and Phenom X4 9750B. You'll probably need this information if you require some particular technology.

AES-NI	+	-
AVX	+	-
Precision Boost 2	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen Threadripper 3990X and Phenom X4 9750B are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper 3990X and Phenom X4 9750B. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	no data
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 X4 9750B.

PCIe version

4.0

no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	52.20	0.99
Physical cores	64	4
Threads	128	4
Chip lithography	7 nm	65 nm
Power consumption (TDP)	280 Watt	95 Watt

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Should you still have questions on choice between Ryzen Threadripper 3990X and Phenom X4 9750B, ask them in Comments section, and we shall answer.

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