Core 2 Extreme QX9775 vs Xeon E5-1620 v3

Primary details

Comparing Xeon E5-1620 v3 and Core 2 Extreme QX9775 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1333	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Desktop processor
Power efficiency	2.98	no data
Architecture codename	Haswell-EP (2014−2015)	Yorkfield (2007−2009)
Release date	8 September 2014 (10 years ago)	March 2008 (16 years ago)

Detailed specifications

Xeon E5-1620 v3 and Core 2 Extreme QX9775 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)	4 (Quad-Core)
Threads	8	4
Base clock speed	3.5 GHz	3.2 GHz
Boost clock speed	3.6 GHz	3.2 GHz
Bus rate	0 GT/s	1600 MHz
L1 cache	64K (per core)	64K (per core)
L2 cache	256K (per core)	12 MB (shared)
L3 cache	10 MB (shared)	0 KB
Chip lithography	22 nm	45 nm
Die size	356 mm2	2x 107 mm2
Maximum core temperature	66 °C	no data
Maximum case temperature (TCase)	no data	63 °C
Number of transistors	2,600 million	820 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	-	+
VID voltage range	no data	0.85V-1.35V

Compatibility

Information on Xeon E5-1620 v3 and Core 2 Extreme QX9775 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	LGA771
Power consumption (TDP)	140 Watt	150 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-1620 v3 and Core 2 Extreme QX9775. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX2	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	-	no data
Demand Based Switching	+	-
PAE	46 Bit	no data
FSB parity	no data	-

Security technologies

Xeon E5-1620 v3 and Core 2 Extreme QX9775 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+
Secure Key	+	no data
Identity Protection	+	-
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-1620 v3 and Core 2 Extreme QX9775 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-1620 v3 and Core 2 Extreme QX9775. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1333, DDR4-1600, DDR4-1866, DDR4-2133	DDR2
Maximum memory size	768 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	68 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Xeon E5-1620 v3 and Core 2 Extreme QX9775.

PCIe version	3.0	no data
PCI Express lanes	40	no data

Pros & cons summary

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Threads	8	4
Chip lithography	22 nm	45 nm
Power consumption (TDP)	140 Watt	150 Watt

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