Xeon Gold 6438N vs Pentium D 920

Primary details

Comparing Pentium D 920 and Xeon Gold 6438N processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	117
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	25.72
Market segment	Desktop processor	Server
Power efficiency	no data	15.34
Architecture codename	Presler (2005−2007)	Sapphire Rapids (2023−2024)
Release date	16 January 2006 (18 years ago)	10 January 2023 (1 year ago)
Launch price (MSRP)	$241	$3,351

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium D 920 and Xeon Gold 6438N 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	2	64
Base clock speed	2.8 GHz	2 GHz
Boost clock speed	2.8 GHz	3.6 GHz
L1 cache	16 KB (per core)	80K (per core)
L2 cache	2 MB (per die)	2 MB (per core)
L3 cache	0 KB	60 MB
Chip lithography	65 nm	Intel 7 nm
Die size	2x 81 mm2	no data
Maximum case temperature (TCase)	63 °C	85 °C
Number of transistors	376 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	1.2V-1.3375V	no data

Compatibility

Information on Pentium D 920 and Xeon Gold 6438N 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,PLGA775	FCLGA4677
Power consumption (TDP)	95 Watt	205 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 920 and Xeon Gold 6438N. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	-	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	+	no data
Demand Based Switching	-	no data
PAE	32 Bit	no data
FSB parity	-	no data
Deep Learning Boost	-	+

Security technologies

Pentium D 920 and Xeon Gold 6438N technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
SGX	no data	Yes with Intel® SPS
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium D 920 and Xeon Gold 6438N are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 920 and Xeon Gold 6438N. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR5-4800, DDR5-4400
Maximum memory size	no data	4 TB
Max memory channels	no data	8
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Peripherals

Specifications and connection of peripherals supported by Pentium D 920 and Xeon Gold 6438N.

PCIe version	no data	5
PCI Express lanes	no data	80

Pros & cons summary

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Recency	16 January 2006	10 January 2023
Physical cores	2	32
Threads	2	64
Power consumption (TDP)	95 Watt	205 Watt

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Should you still have questions on choice between Pentium D 920 and Xeon Gold 6438N, ask them in Comments section, and we shall answer.

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