Ryzen Threadripper PRO 3975WX vs Core i7-6800K

Primary details

Comparing Core i7-6800K and Ryzen Threadripper PRO 3975WX processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	949	57
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.29	18.26
Market segment	Desktop processor	Desktop processor
Series	no data	AMD Ryzen Threadripper
Architecture codename	Broadwell-E (2016)	Matisse (2019−2020)
Release date	31 May 2016 (8 years ago)	14 July 2020 (3 years ago)
Launch price (MSRP)	$345	no data
Current price	$196 (0.6x MSRP)	$2200

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen Threadripper PRO 3975WX has 455% better value for money than i7-6800K.

Detailed specifications

Core i7-6800K 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	6 (Hexa-Core)	32 (Dotriaconta-Core)
Threads	12	64
Base clock speed	3.4 GHz	3.5 GHz
Boost clock speed	3.8 GHz	4.2 GHz
L1 cache	32 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	512K (per core)
L3 cache	15 MB (shared)	128 MB
Chip lithography	14 nm	7 nm
Die size	no data	74 mm2
Maximum core temperature	67°	95 °C
Maximum case temperature (TCase)	72 °C	95 °C
Number of transistors	no data	3,800 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	Yes	Yes

Compatibility

Information on Core i7-6800K 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	1
Socket	FCLGA2011	sWRX8
Power consumption (TDP)	140 Watt	280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-6800K and Ryzen Threadripper PRO 3975WX. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	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
Idle States	+	no data
Smart Response	+	no data
Turbo Boost Max 3.0	+	no data
Status	Discontinued	no data

Security technologies

Core i7-6800K and Ryzen Threadripper PRO 3975WX technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-6800K and Ryzen Threadripper PRO 3975WX are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-6800K and Ryzen Threadripper PRO 3975WX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4-3200
Maximum memory size	128 GB	2 TiB
Max memory channels	4	no data
Maximum memory bandwidth	no data	204.8 GB/s
ECC memory support	-	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-6800K and Ryzen Threadripper PRO 3975WX.

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.

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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.

Ryzen Threadripper PRO 3975WX outperforms Core i7-6800K by 484% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	6.96	40.64
Recency	31 May 2016	14 July 2020
Physical cores	6	32
Threads	12	64
Chip lithography	14 nm	7 nm
Power consumption (TDP)	140 Watt	280 Watt

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Should you still have questions on choice between Core i7-6800K and Ryzen Threadripper PRO 3975WX, ask them in Comments section, and we shall answer.

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