FX-770K vs Xeon Gold 6138

Primary details

Comparing Xeon Gold 6138 and FX-770K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	444	1947
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.93	no data
Market segment	Server	Desktop processor
Series	Intel Xeon Gold	no data
Architecture codename	Skylake (server) (2017−2019)	Kaveri (2014−2015)
Release date	25 April 2017 (7 years ago)	December 2014 (9 years ago)
Launch price (MSRP)	$2,612	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Gold 6138 and FX-770K 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	20 (Icosa-Core)	4 (Quad-Core)
Threads	40	4
Base clock speed	2 GHz	3.5 GHz
Boost clock speed	3.7 GHz	3.9 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	20	no data
L1 cache	1.25 MB	256K
L2 cache	20 MB	4 MB
L3 cache	27.5 MB	no data
Chip lithography	14 nm	28 nm
Die size	no data	245 mm2
Maximum core temperature	86 °C	no data
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	no data	2,411 million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	-	+

Compatibility

Information on Xeon Gold 6138 and FX-770K 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	4 (Multiprocessor)	1
Socket	FCLGA3647	FM2+
Power consumption (TDP)	125 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Gold 6138 and FX-770K. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX-512	no data
AES-NI	+	+
FMA	-	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Turbo Boost Max 3.0	-	no data
Status	Launched	no data

Security technologies

Xeon Gold 6138 and FX-770K 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 Xeon Gold 6138 and FX-770K 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 Xeon Gold 6138 and FX-770K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR3-2133
Maximum memory size	768 GB	no data
Max memory channels	6	no data
Maximum memory bandwidth	128.001 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Xeon Gold 6138 and FX-770K.

PCIe version	3.0	3.0
PCI Express lanes	48	16

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.

Pros & cons summary

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Performance score	15.70	1.93
Physical cores	20	4
Threads	40	4
Chip lithography	14 nm	28 nm
Power consumption (TDP)	125 Watt	65 Watt

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Should you still have questions on choice between Xeon Gold 6138 and FX-770K, ask them in Comments section, and we shall answer.

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