Ryzen Threadripper 3990X vs Pentium B940

Primary details

Comparing Pentium B940 and Ryzen Threadripper 3990X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2830	33
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	9.53
Market segment	Laptop	Desktop processor
Series	Intel Pentium	AMD Ryzen Threadripper
Power efficiency	1.46	17.00
Architecture codename	Sandy Bridge (2011−2013)	Matisse (2019−2020)
Release date	13 June 2011 (13 years ago)	7 February 2020 (4 years ago)
Launch price (MSRP)	$134	$3,999

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium B940 and Ryzen Threadripper 3990X 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	2 (Dual-core)	64 (Tetrahexaconta-Core)
Threads	2	128
Base clock speed	2 GHz	2.9 GHz
Boost clock speed	2 GHz	4.3 GHz
Bus type	DMI 2.0	no data
Bus rate	4 × 5 GT/s	no data
Multiplier	20	29
L1 cache	128 KB	96K (per core)
L2 cache	512 KB	512K (per core)
L3 cache	2 MB (shared)	256 MB
Chip lithography	32 nm	7 nm, 12 nm
Die size	131 mm2	74 mm2
Maximum core temperature	85 °C	no data
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	504 million	3,800 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Pentium B940 and Ryzen Threadripper 3990X 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)	1
Socket	PGA988	TR4
Power consumption (TDP)	35 Watt	280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium B940 and Ryzen Threadripper 3990X. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	-	+
FMA	+	-
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
My WiFi	-	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data
Precision Boost 2	no data	+

Security technologies

Pentium B940 and Ryzen Threadripper 3990X technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium B940 and Ryzen Threadripper 3990X are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium B940 and Ryzen Threadripper 3990X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-3200
Maximum memory size	16 GB	256 GB
Max memory channels	2	4
Maximum memory bandwidth	21.335 GB/s	102.403 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	-
Clear Video	-	-
Clear Video HD	-	-
Graphics max frequency	1.1 GHz	-
InTru 3D	-	-

Graphics interfaces

Available interfaces and connections of Pentium B940 and Ryzen Threadripper 3990X integrated GPUs.

Number of displays supported	2	-
eDP	+	-
DisplayPort	+	-
HDMI	+	-
SDVO	+	-
CRT	+	-

Peripherals

Specifications and connection of peripherals supported by Pentium B940 and Ryzen Threadripper 3990X.

PCIe version	2.0	4.0
PCI Express lanes	16	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	0.56	52.20
Recency	13 June 2011	7 February 2020
Physical cores	2	64
Threads	2	128
Chip lithography	32 nm	7 nm
Power consumption (TDP)	35 Watt	280 Watt

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Should you still have questions on choice between Pentium B940 and Ryzen Threadripper 3990X, ask them in Comments section, and we shall answer.

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