Ryzen Threadripper PRO 3995WX vs i7-5820K

Primary details

Comparing Core i7-5820K and Ryzen Threadripper PRO 3995WX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1076	27
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.13	6.03
Market segment	Desktop processor	Server
Series	no data	AMD Ryzen Threadripper
Power efficiency	4.19	17.81
Architecture codename	Haswell-E (2014)	Matisse (2019−2020)
Release date	1 September 2014 (10 years ago)	14 July 2020 (4 years ago)
Launch price (MSRP)	$410	$5,500

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen Threadripper PRO 3995WX has 434% better value for money than i7-5820K.

Detailed specifications

Core i7-5820K and Ryzen Threadripper PRO 3995WX 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	6 (Hexa-Core)	64 (Tetrahexaconta-Core)
Threads	12	128
Base clock speed	3.3 GHz	2.7 GHz
Boost clock speed	3.6 GHz	4.2 GHz
Bus rate	0 GT/s	no data
Multiplier	no data	27
L1 cache	64 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	512K (per core)
L3 cache	15 MB (shared)	256 MB
Chip lithography	22 nm	7 nm, 12 nm
Die size	356 mm2	74 mm2
Maximum core temperature	67 °C	95 °C
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	2,600 million	3,800 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	+	+

Compatibility

Information on Core i7-5820K and Ryzen Threadripper PRO 3995WX 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	FCLGA2011	sWRX8
Power consumption (TDP)	140 Watt	280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-5820K and Ryzen Threadripper PRO 3995WX. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX2	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
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Idle States	+	no data
Thermal Monitoring	+	-
Smart Response	+	no data
Demand Based Switching	-	no data
Precision Boost 2	no data	+

Security technologies

Core i7-5820K and Ryzen Threadripper PRO 3995WX technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Identity Protection	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-5820K and Ryzen Threadripper PRO 3995WX 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 Core i7-5820K and Ryzen Threadripper PRO 3995WX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4-3200
Maximum memory size	64 GB	2 TiB
Max memory channels	4	no data
Maximum memory bandwidth	68 GB/s	204.8 GB/s

Peripherals

Specifications and connection of peripherals supported by Core i7-5820K and Ryzen Threadripper PRO 3995WX.

PCIe version	3.0	4.0
PCI Express lanes	28	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.

---

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.

---

Pros & cons summary

---

Performance score	6.20	52.69
Recency	1 September 2014	14 July 2020
Physical cores	6	64
Threads	12	128
Chip lithography	22 nm	7 nm
Power consumption (TDP)	140 Watt	280 Watt

---

Should you still have questions on choice between Core i7-5820K and Ryzen Threadripper PRO 3995WX, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---