Ryzen Threadripper PRO 3975WX vs Pentium 4405U

Primary details

Comparing Pentium 4405U and Ryzen Threadripper PRO 3975WX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2249	68
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Pentium	AMD Ryzen Threadripper
Power efficiency	8.39	13.29
Architecture codename	Skylake (2015−2016)	Matisse (2019−2020)
Release date	1 September 2015 (9 years ago)	14 July 2020 (4 years ago)
Launch price (MSRP)	$161	no data

Detailed specifications

Pentium 4405U and Ryzen Threadripper PRO 3975WX 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)	32 (Dotriaconta-Core)
Threads	4	64
Base clock speed	2.1 GHz	3.5 GHz
Boost clock speed	2.1 GHz	4.2 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	no data
Multiplier	21	35
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	512K (per core)
L3 cache	2 MB	128 MB
Chip lithography	14 nm	7 nm, 12 nm
Die size	98.57 mm2	74 mm2
Maximum core temperature	100 °C	95 °C
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	1750 Million	3,800 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Pentium 4405U and Ryzen Threadripper PRO 3975WX 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	FCBGA1356	sWRX8
Power consumption (TDP)	15 Watt	280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 4405U and Ryzen Threadripper PRO 3975WX. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, AVX2, BMI1, BMI2, SHA, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT, Precision Boost 2, XFR 2
AES-NI	+	+
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
Smart Response	+	no data
Precision Boost 2	no data	+

Security technologies

Pentium 4405U and Ryzen Threadripper PRO 3975WX technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data
Secure Key	+	no data
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 4405U and Ryzen Threadripper PRO 3975WX 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 Pentium 4405U and Ryzen Threadripper PRO 3975WX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR4-3200
Maximum memory size	32 GB	2 TiB
Max memory channels	2	no data
Maximum memory bandwidth	34.134 GB/s	204.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 510	-
Max video memory	32 GB	-
Quick Sync Video	+	-
Clear Video	+	-
Clear Video HD	+	-
Graphics max frequency	950 MHz	-

Graphics interfaces

Available interfaces and connections of Pentium 4405U and Ryzen Threadripper PRO 3975WX integrated GPUs.

Number of displays supported	3	-
eDP	+	-
DisplayPort	+	-
HDMI	+	-
DVI	+	-

Graphics image quality

Maximum display resolutions supported by Pentium 4405U and Ryzen Threadripper PRO 3975WX integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	-
Max resolution over HDMI 1.4	4096x2304@24Hz	-
Max resolution over eDP	4096x2304@60Hz	-
Max resolution over DisplayPort	4096x2304@60Hz	-
Max resolution over VGA	N/A	-

Graphics API support

APIs supported by Pentium 4405U and Ryzen Threadripper PRO 3975WX integrated GPUs, sometimes API versions are included.

DirectX	12	-
OpenGL	4.4	-

Peripherals

Specifications and connection of peripherals supported by Pentium 4405U and Ryzen Threadripper PRO 3975WX.

PCIe version	2.0	4.0
PCI Express lanes	10	128

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	1.33	39.33
Recency	1 September 2015	14 July 2020
Physical cores	2	32
Threads	4	64
Chip lithography	14 nm	7 nm
Power consumption (TDP)	15 Watt	280 Watt

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Should you still have questions on choice between Pentium 4405U and Ryzen Threadripper PRO 3975WX, ask them in Comments section, and we shall answer.

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