Xeon Gold 6138P vs Core 2 Quad Q9400s

Primary details

Comparing Core 2 Quad Q9400s and Xeon Gold 6138P processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Series	no data	Intel Xeon Gold
Architecture codename	Yorkfield (2007−2009)	Skylake (server) (2017−2019)
Release date	January 2009 (15 years ago)	16 May 2018 (6 years ago)
Launch price (MSRP)	no data	$4,937
Current price	$120	no data

Detailed specifications

Core 2 Quad Q9400s and Xeon Gold 6138P 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	4 (Quad-Core)	20 (Icosa-Core)
Threads	4	40
Base clock speed	2.66 GHz	2 GHz
Boost clock speed	2.67 GHz	3.7 GHz
Bus support	no data	4 × 8 GT/s
L1 cache	64K (per core)	1.25 MB
L2 cache	6 MB (shared)	20 MB
L3 cache	0 KB	27.5 MB
Chip lithography	45 nm	14 nm
Die size	2x 81 mm2	no data
Maximum core temperature	76 °C	no data
Maximum case temperature (TCase)	76 °C	no data
Number of transistors	456 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	No
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Quad Q9400s and Xeon Gold 6138P 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	2
Socket	LGA775	FCLGA3647
Power consumption (TDP)	65 Watt	195 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9400s and Xeon Gold 6138P. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® AVX-512
AES-NI	-	+
AVX	no data	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	no data	+
Idle States	+	no data
Thermal Monitoring	+	no data
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	-
FSB parity	-	no data
Status	Discontinued	Discontinued

Security technologies

Core 2 Quad Q9400s and Xeon Gold 6138P technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q9400s and Xeon Gold 6138P are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9400s and Xeon Gold 6138P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4-2666
Maximum memory size	no data	768 GB
Max memory channels	no data	6
Maximum memory bandwidth	no data	128.001 GB/s
ECC memory support	no data	+

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q9400s and Xeon Gold 6138P.

PCIe version	no data	3.0
PCI Express lanes	no data	48

Pros & cons summary

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Physical cores	4	20
Threads	4	40
Chip lithography	45 nm	14 nm
Power consumption (TDP)	65 Watt	195 Watt

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Should you still have questions on choice between Core 2 Quad Q9400s and Xeon Gold 6138P, ask them in Comments section, and we shall answer.

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