Product comparison · 2 pcs/workstations

HP Compaq Elite A2K56ES PC Intel® Core™ i5 i5-650 vs Lenovo ThinkCentre M77

10specifications compared
7differ
3identical
113known for one product only

Key differences

Processor cache
- Compaq Elite A2K56ES PC Intel® Core™ i5 i5-650:4 MB
- ThinkCentre M77:1 MB
HDD capacity
- Compaq Elite A2K56ES PC Intel® Core™ i5 i5-650:500 GB
- ThinkCentre M77:320 GB
Graphics card family
- Compaq Elite A2K56ES PC Intel® Core™ i5 i5-650:Intel
- ThinkCentre M77:ATI
Power supply
- Compaq Elite A2K56ES PC Intel® Core™ i5 i5-650:240 W
- ThinkCentre M77:280 W
Width
- Compaq Elite A2K56ES PC Intel® Core™ i5 i5-650:378.5 mm
- ThinkCentre M77:175 mm
Depth
- Compaq Elite A2K56ES PC Intel® Core™ i5 i5-650:100 mm
- ThinkCentre M77:442 mm
Height
- Compaq Elite A2K56ES PC Intel® Core™ i5 i5-650:338 mm
- ThinkCentre M77:414 mm

Side by side

Differences highlightedShow differences only

Comparison of A2K56ES, ThinkCentre M77
123 specifications	A HP Compaq Elite A2K56ES PC Intel® Core™ i5 i5-650 Model A2K56ES View product	B Lenovo ThinkCentre M77 View product
Processor1 differ
Processor manufacturerKnown for one	Intel	Unknown — not stated by the source
Processor familyKnown for one	Intel® Core™ i5	Unknown — not stated by the source
Processor generationKnown for one	Intel® Core™ i5	Unknown — not stated by the source
Processor modelKnown for one	i5-650	Unknown — not stated by the source
Processor coresKnown for one	2	Unknown — not stated by the source
Processor threadsKnown for one	4	Unknown — not stated by the source
Processor boost frequencyKnown for one	3.46 GHz	Unknown — not stated by the source
Processor frequencyKnown for one	3.2 GHz	Unknown — not stated by the source
Processor cacheDiffers	4 MB	1 MB
Processor cache typeKnown for one	Smart Cache	Unknown — not stated by the source
Bus typeKnown for one	DMI	Unknown — not stated by the source
FSB ParityKnown for one	No	Unknown — not stated by the source
System bus rateKnown for one	2.5 GT/s	Unknown — not stated by the source
Processor lithographyKnown for one	32 nm	Unknown — not stated by the source
Processor operating modesKnown for one	64-bit	Unknown — not stated by the source
Processor seriesKnown for one	Intel Core i5-600 Desktop Series	Unknown — not stated by the source
Processor codenameKnown for one	Clarkdale	Unknown — not stated by the source
Thermal Design Power (TDP)Known for one	73 W	Unknown — not stated by the source
TcaseKnown for one	72.6 °C	Unknown — not stated by the source
Maximum number of PCI Express lanesKnown for one	16	Unknown — not stated by the source
PCI Express configurationsKnown for one	1x16, 2x8	Unknown — not stated by the source
PCI Express slots versionKnown for one	2.0	Unknown — not stated by the source
Number of processors installedKnown for one	1	Unknown — not stated by the source
Processor socketKnown for one	LGA 1156 (Socket H)	Unknown — not stated by the source
Number of Processing Die TransistorsKnown for one	382 M	Unknown — not stated by the source
Processing Die sizeKnown for one	81 mm²	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	24	Unknown — not stated by the source
PlatformKnown for one	PC	Unknown — not stated by the source
SteppingKnown for one	C2	Unknown — not stated by the source
Maximum internal memory supported by processorKnown for one	16 GB	Unknown — not stated by the source
Memory types supported by processorKnown for one	DDR3 1066/1333	Unknown — not stated by the source
Memory bandwidth supported by processor (max)Known for one	21 GB/s	Unknown — not stated by the source
ECC supported by processorKnown for one	No	Unknown — not stated by the source
Memoryidentical
Internal memory typeKnown for one	DDR3-SDRAM	Unknown — not stated by the source
Memory slotsKnown for one	4x DIMM	Unknown — not stated by the source
Memory channelsKnown for one	Dual-channel	Unknown — not stated by the source
Storage1 differ
Total storage capacityKnown for one	500 GB	Unknown — not stated by the source
Optical drive typeKnown for one	DVD-RW	Unknown — not stated by the source
Total HDDs capacityKnown for one	500 GB	Unknown — not stated by the source
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacityDiffers	500 GB	320 GB
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Graphics1 differ
On-board graphics cardKnown for one	Yes	Unknown — not stated by the source
On-board graphics card familyKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card modelKnown for one	Intel® HD Graphics	Unknown — not stated by the source
Number of displays supported (on-board graphics)Known for one	2	Unknown — not stated by the source
On-board graphics card base frequencyKnown for one	733 MHz	Unknown — not stated by the source
Graphics card familyDiffers	Intel	ATI
Performanceidentical
Motherboard chipsetKnown for one	Intel® Q57	Unknown — not stated by the source
Compatible processor seriesKnown for one	Intel® Core™ i5	Unknown — not stated by the source
Networkidentical
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Wi-FiKnown for one	No	Unknown — not stated by the source
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Ports & interfacesidentical
USB 2.0 ports quantityKnown for one	10	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsKnown for one	1	Unknown — not stated by the source
Headphone outputsKnown for one	1	Unknown — not stated by the source
Microphone inKnown for one	Yes	Unknown — not stated by the source
VGA (D-Sub) ports quantityKnown for one	1	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
PS/2 ports quantityKnown for one	2	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Serial ports quantityKnown for one	1	Unknown — not stated by the source
Expansion slotsidentical
PCI Express x1 slotsKnown for one	1	Unknown — not stated by the source
PCI Express x16 slotsKnown for one	2	Unknown — not stated by the source
PCI slotsKnown for one	1	Unknown — not stated by the source
Number of slotsKnown for one	Unknown — not stated by the source	2
Power1 differ
Power supply typeKnown for one	AC	Unknown — not stated by the source
Power supplyDiffers	240 W	280 W
Designidentical
Chassis typeKnown for one	SFF	Unknown — not stated by the source
Product colourKnown for one	Black	Unknown — not stated by the source
Country of originKnown for one	China	Unknown — not stated by the source
Softwareidentical
Operating system installedKnown for one	Windows 7 Professional	Unknown — not stated by the source
Operating system architectureKnown for one	64-bit	Unknown — not stated by the source
Mac compatibilityKnown for one	No	Unknown — not stated by the source
Displayidentical
Display includedKnown for one	No	Unknown — not stated by the source
Processor special featuresidentical
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Embedded options availableKnown for one	No	Unknown — not stated by the source
Enhanced Intel SpeedStep TechnologyKnown for one	Yes	Unknown — not stated by the source
Execute Disable BitKnown for one	Yes	Unknown — not stated by the source
Graphics & IMC lithographyKnown for one	45 nm	Unknown — not stated by the source
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Intel 64Known for one	Yes	Unknown — not stated by the source
Intel Clear Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel Demand Based SwitchingKnown for one	No	Unknown — not stated by the source
Intel Dual Display Capable TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Enhanced Halt StateKnown for one	Yes	Unknown — not stated by the source
Intel FDI TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Fast Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Flex Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	No	Unknown — not stated by the source
Intel Trusted Execution TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel VT-x with Extended Page Tables (EPT)Known for one	Yes	Unknown — not stated by the source
Intel Virtualization Technology (VT-x)Known for one	Yes	Unknown — not stated by the source
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Yes	Unknown — not stated by the source
Intel® AES New Instructions (Intel® AES-NI)Known for one	Yes	Unknown — not stated by the source
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	Yes	Unknown — not stated by the source
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	No	Unknown — not stated by the source
Intel® InTru™ 3D TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Insider™Known for one	No	Unknown — not stated by the source
Intel® Wireless Display (Intel® WiDi)Known for one	No	Unknown — not stated by the source
Physical Address Extension (PAE)Known for one	36 bit	Unknown — not stated by the source
Processor ARK IDKnown for one	43546	Unknown — not stated by the source
Processor package sizeKnown for one	37.5 x 37.5 mm	Unknown — not stated by the source
Supported instruction setsKnown for one	SSE4.2	Unknown — not stated by the source
Thermal Monitoring TechnologiesKnown for one	No	Unknown — not stated by the source
Intel® Turbo Boost TechnologyKnown for one	1.0	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Yes	Unknown — not stated by the source
Intel® Quick Sync Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel® My WiFi Technology (Intel® MWT)Known for one	No	Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Known for one	No	Unknown — not stated by the source
Conflict-Free processorKnown for one	No	Unknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers	378.5 mm	175 mm
DepthDiffers	100 mm	442 mm
HeightDiffers	338 mm	414 mm
Certificatesidentical
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	Unknown — not stated by the source

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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