Product comparison · 2 servers

Acer Altos R520 M2 vs Acer Altos R720 M2

87specifications compared
5differ
82identical
2known for one product only

Key differences

HDD size
- Altos R520 M2:2.5"
- Altos R720 M2:3.5"
USB 2.0 ports quantity
- Altos R520 M2:5
- Altos R720 M2:6
VGA (D-Sub) ports quantity
- Altos R520 M2:1
- Altos R720 M2:2
Chassis type
- Altos R520 M2:Rack (1U)
- Altos R720 M2:Rack (2U)
Height
- Altos R520 M2:43.5 mm
- Altos R720 M2:87 mm

Side by side

Differences highlightedShow differences only

Comparison of Altos R520 M2, Altos R720 M2
89 specifications	A Acer Altos R520 M2 View product	B Acer Altos R720 M2 View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor model	E5504	E5504
Processor frequency	2 GHz	2 GHz
Processor cores	4	4
Processor cache	4 MB	4 MB
Motherboard chipset	Intel® 5520	Intel® 5520
Memory channels supported by processor	Triple	Triple
Number of processors installed	1	1
Thermal Design Power (TDP)	80 W	80 W
Processor cache type	Smart Cache	Smart Cache
System bus rate	4.8 GT/s	4.8 GT/s
Bus type	QPI	QPI
CPU multiplier (bus/core ratio)	15	15
ECC supported by processor	Yes	Yes
Embedded options available	Yes	Yes
Execute Disable Bit	Yes	Yes
FSB Parity	No	No
Idle States	Yes	Yes
Maximum internal memory supported by processor	144 GB	144 GB
Memory bandwidth supported by processor (max)	19.2 GB/s	19.2 GB/s
Memory clock speeds supported by processor	800 MHz	800 MHz
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Number of QPI links	2	2
Physical Address Extension (PAE)	Yes	Yes
Processor code	SLBF9	SLBF9
Processor codename	Nehalem EP	Nehalem EP
Processor lithography	45 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor package size	42.5 x 45 mm	42.5 x 45 mm
Processor series	Intel Xeon 5500 Series	Intel Xeon 5500 Series
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor system type	DP	DP
Processor threads	4	4
Stepping	D0	D0
Tcase	76 °C	76 °C
Thermal Monitoring Technologies	No	No
Conflict-Free processor	No	No
Memoryidentical
Internal memory	3 GB	3 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)	3 x 1 GB	3 x 1 GB
Memory slots	12x DIMM	12x DIMM
Maximum internal memory	48 GB	48 GB
Storage1 differ
Total storage capacity	0 GB	0 GB
HDD interface	Serial ATA	Serial ATA
HDD sizeDiffers	2.5"	3.5"
Hot-swap	Yes	Yes
Networkidentical
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces2 differ
Ethernet LAN (RJ-45) ports	2	2
USB 2.0 ports quantityDiffers	5	6
PS/2 ports quantity	2	2
Serial ports quantity	1	1
VGA (D-Sub) ports quantityDiffers	1	2
Design1 differ
Chassis typeDiffers	Rack (1U)	Rack (2U)
Softwareidentical
Compatible operating systems	Microsoft Windows Server 2008 Standard and Enterprise Edition (x86) Microsoft Windows Server 2008 Standard and Enterprise Edition (EM64T) Microsoft Windows Server 2003 Standard and Enterprise Edition (x86) Microsoft Windows Server 2003 Standard and Enterprise Edition (EM64T) Red Hat Enterprise Linux	Microsoft Windows Server 2008 Standard and Enterprise Edition (x86) Microsoft Windows Server 2008 Standard and Enterprise Edition (EM64T) Microsoft Windows Server 2003 Standard and Enterprise Edition (x86) Microsoft Windows Server 2003 Standard and Enterprise Edition (EM64T) Red Hat Enterprise Linux
Processor special featuresidentical
CPU configuration (max)	2	2
Enhanced Intel SpeedStep Technology	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 Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
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)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
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® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Quick Sync Video Technology	No	No
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost Technology	No	No
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK ID	40711	40711
Poweridentical
Redundant power supply (RPS) support	Yes	Yes
Weight & dimensions1 differ
Width	430 mm	430 mm
Depth	745 mm	745 mm
HeightDiffers	43.5 mm	87 mm
WeightKnown for one	12.4 kg	Unknown — not stated by the source
Graphicsidentical
Maximum graphics card memoryKnown for one	Unknown — not stated by the source	32 MB

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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