Product comparison · 2 pcs/workstations

HP 620 Intel® Xeon® E5 Family E5-2620 vs HP 820 Intel® Xeon® E5 Family E5-2643

124specifications compared
28differ
96identical
19known for one product only

Key differences

Processor model
- 620 Intel® Xeon® E5 Family E5-2620:E5-2620
- 820 Intel® Xeon® E5 Family E5-2643:E5-2643
Processor cores
- 620 Intel® Xeon® E5 Family E5-2620:6
- 820 Intel® Xeon® E5 Family E5-2643:4
Processor threads
- 620 Intel® Xeon® E5 Family E5-2620:12
- 820 Intel® Xeon® E5 Family E5-2643:8
Processor boost frequency
- 620 Intel® Xeon® E5 Family E5-2620:2.5 GHz
- 820 Intel® Xeon® E5 Family E5-2643:3.5 GHz
Processor frequency
- 620 Intel® Xeon® E5 Family E5-2620:2 GHz
- 820 Intel® Xeon® E5 Family E5-2643:3.3 GHz
Processor cache
- 620 Intel® Xeon® E5 Family E5-2620:15 MB
- 820 Intel® Xeon® E5 Family E5-2643:10 MB
System bus rate
- 620 Intel® Xeon® E5 Family E5-2620:7.2 GT/s
- 820 Intel® Xeon® E5 Family E5-2643:8 GT/s
Thermal Design Power (TDP)
- 620 Intel® Xeon® E5 Family E5-2620:95 W
- 820 Intel® Xeon® E5 Family E5-2643:130 W

Side by side

Differences highlightedShow differences only

Comparison of 620, 820
143 specifications	A HP 620 Intel® Xeon® E5 Family E5-2620 Model 620 View product	B HP 820 Intel® Xeon® E5 Family E5-2643 Model 820 View product
Processor13 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Xeon® E5 Family	Intel® Xeon® E5 Family
Processor modelDiffers	E5-2620	E5-2643
Processor coresDiffers	6	4
Processor threadsDiffers	12	8
Processor boost frequencyDiffers	2.5 GHz	3.5 GHz
Processor frequencyDiffers	2 GHz	3.3 GHz
Processor cacheDiffers	15 MB	10 MB
Processor cache type	Smart Cache	Smart Cache
Bus type	QPI	QPI
FSB Parity	No	No
System bus rateDiffers	7.2 GT/s	8 GT/s
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Xeon E5-2600	Intel Xeon E5-2600
Processor codename	Sandy Bridge EP	Sandy Bridge EP
Thermal Design Power (TDP)Differs	95 W	130 W
TcaseDiffers	77.4 °C	73 °C
Maximum number of PCI Express lanes	40	40
PCI Express configurations	x4, x8, x16	x4, x8, x16
PCI Express slots version	3.0	3.0
Number of QPI links	2	2
Number of processors installed	2	2
Processor socket	LGA 2011 (Socket R)	LGA 2011 (Socket R)
CPU multiplier (bus/core ratio)Differs	25	35
SteppingDiffers	C2	M1
Maximum internal memory supported by processor	750 GB	750 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	800,1066,1333 MHz	800,1066,1333,1600 MHz
Memory bandwidth supported by processor (max)Differs	42.6 GB/s	51.2 GB/s
ECC supported by processor	Yes	Yes
Memory3 differ
Internal memoryDiffers	16 GB	32 GB
Maximum internal memoryDiffers	192 GB	512 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory slotsDiffers	12x DIMM	16x DIMM
Memory clock speed	1600 MHz	1600 MHz
Memory channels	Quad-channel	Quad-channel
ECCKnown for one	Yes	Unknown — not stated by the source
Storageidentical
Total storage capacity	1 TB	1 TB
Optical drive type	DVD Super Multi	DVD Super Multi
Storage media	HDD	HDD
Total HDDs capacity	1 TB	1 TB
Number of HDDs installed	1	1
HDD capacity	1 TB	1 TB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integrated	Yes	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC, SD, SDXC, SDHC
RAID supportKnown for one	Yes	Unknown — not stated by the source
RAID levelsKnown for one	0, 1, 10	Unknown — not stated by the source
Graphicsidentical
On-board graphics card	No	No
Discrete graphics card model	Not available	Not available
On-board graphics card model	Not available	Not available
Performanceidentical
Product type	Workstation	Workstation
Motherboard chipset	Intel® C602	Intel® C602
Optical driveidentical
Optical drives quantity	1	1
LightScribeKnown for one	Unknown — not stated by the source	No
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	10,100,1000 Mbit/s
Wi-Fi	No	No
Wi-Fi standardsKnown for one	Unknown — not stated by the source	Not supported
Ports & interfaces1 differ
USB 2.0 ports quantity	5	5
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	4	4
HDMI ports quantityKnown for one	Unknown — not stated by the source	0
Ethernet LAN (RJ-45) ports	2	2
Combo headphone/mic portKnown for one	Unknown — not stated by the source	No
Headphone outputs	1	1
Line-out	Yes	Yes
Line-in	Yes	Yes
Microphone in	Yes	Yes
DVI portKnown for one	Unknown — not stated by the source	No
PS/2 ports quantityDiffers	0	2
Firewire (IEEE 1394) ports	2	2
S/PDIF out portKnown for one	Unknown — not stated by the source	No
DC-in jackKnown for one	Unknown — not stated by the source	No
SmartCard slotKnown for one	Unknown — not stated by the source	No
Serial ports quantityKnown for one	Unknown — not stated by the source	1
Expansion slots2 differ
Number of 3.5" baysDiffers	3	4
PCI Express x4 (Gen 2.x) slots	1	1
PCI Express x4 (Gen 3.x) slotsKnown for one	Unknown — not stated by the source	1
PCI Express x8 (Gen 3.x) slots	1	1
PCI Express x16 (Gen 3.x) slotsDiffers	2	3
PCI slots	1	1
PCI Express x8 (Gen 2.x) slotsKnown for one	1	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	800 W	1125 W
Design1 differ
Chassis typeDiffers	Minitower	Mini Tower
Number of 5.25" bays	3	3
Product colour	Black	Black
Country of origin	China	China
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Displayidentical
Display included	No	No
Processor special features3 differ
CPU configuration (max)	2	2
Embedded options availableDiffers	Yes	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithography	32 nm	32 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	Yes	Yes
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	No	No
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Identity Protection Technology version	0.00	0.00
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology version	1.00	1.00
Intel TSX-NI version	0.00	0.00
Intel Trusted Execution Technology	Yes	Yes
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	No	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	No
Intel® Wireless Display (Intel® WiDi)	No	No
Physical Address Extension (PAE)	46 bit	46 bit
Processor ARK IDDiffers	64594	64587
Processor package size	52.5 x 45.0 mm	52.5 x 45.0 mm
Scalability	2S	2S
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Intel® Smart Response TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Turbo Boost TechnologyDiffers	1.0	2.0
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Quick Sync Video Technology	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Identity Protection Technology (Intel® IPT)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Conflict-Free processor	No	No
Weight & dimensions4 differ
WidthDiffers	171.5 mm	203 mm
DepthDiffers	464.8 mm	525 mm
HeightDiffers	444.5 mm	444 mm
WeightDiffers	15.5 kg	19.5 kg
Packaging contentidentical
Mouse included	Yes	Yes
Keyboard included	Yes	Yes
AC adapter includedKnown for one	Unknown — not stated by the source	No

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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