Product comparison · 2 pcs/workstations

HP Pavilion p6635uk Intel® Core™ i3 i3-550 vs HP Pavilion p6658uk Intel® Pentium® D 820

128specifications compared
40differ
88identical
29known for one product only

Key differences

The HP Pavilion p6635uk Intel® Core™ i3 i3-550 has 2 more processor threads than the HP Pavilion p6658uk Intel® Pentium® D 820 (4 vs 2). The HP Pavilion p6635uk Intel® Core™ i3 i3-550 has 0.4 GHz more processor frequency than the HP Pavilion p6658uk Intel® Pentium® D 820 (3.2 GHz vs 2.8 GHz). The HP Pavilion p6658uk Intel® Pentium® D 820 has 2 MB more processor cache than the HP Pavilion p6635uk Intel® Core™ i3 i3-550 (6 MB vs 4 MB). Only the HP Pavilion p6658uk Intel® Pentium® D 820 has Wi-Fi. Only the HP Pavilion p6635uk Intel® Core™ i3 i3-550 has enhanced Intel SpeedStep Technology.

Processor family
- Pavilion p6635uk Intel® Core™ i3 i3-550:Intel® Core™ i3
- Pavilion p6658uk Intel® Pentium® D 820:Intel® Pentium® D
Processor model
- Pavilion p6635uk Intel® Core™ i3 i3-550:i3-550
- Pavilion p6658uk Intel® Pentium® D 820:820
Processor threads
- Pavilion p6635uk Intel® Core™ i3 i3-550:4
- Pavilion p6658uk Intel® Pentium® D 820:2
Processor frequency
- Pavilion p6635uk Intel® Core™ i3 i3-550:3.2 GHz
- Pavilion p6658uk Intel® Pentium® D 820:2.8 GHz
Processor cache
- Pavilion p6635uk Intel® Core™ i3 i3-550:4 MB
- Pavilion p6658uk Intel® Pentium® D 820:6 MB
Bus type
- Pavilion p6635uk Intel® Core™ i3 i3-550:DMI
- Pavilion p6658uk Intel® Pentium® D 820:FSB
Processor lithography
- Pavilion p6635uk Intel® Core™ i3 i3-550:32 nm
- Pavilion p6658uk Intel® Pentium® D 820:90 nm
Processor codename
- Pavilion p6635uk Intel® Core™ i3 i3-550:Clarkdale
- Pavilion p6658uk Intel® Pentium® D 820:Smithfield

Side by side

Differences highlightedShow differences only

Comparison of p6635uk, p6658uk
157 specifications	A HP Pavilion p6635uk Intel® Core™ i3 i3-550 Model p6635uk View product	B HP Pavilion p6658uk Intel® Pentium® D 820 Model p6658uk View product
Processor15 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Pentium® D
Processor generationKnown for one	Intel® Core™ i3	Unknown — not stated by the source
Processor modelDiffers	i3-550	820
Processor cores	2	2
Processor threadsDiffers	4	2
Processor frequencyDiffers	3.2 GHz	2.8 GHz
Processor cacheDiffers	4 MB	6 MB
Processor cache type	L3	L3
Bus typeDiffers	DMI	FSB
FSB Parity	No	No
System bus rateKnown for one	2.5 GT/s	Unknown — not stated by the source
Processor lithographyDiffers	32 nm	90 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i3-500 Desktop Series	Intel Pentium D 800 Series
Processor codenameDiffers	Clarkdale	Smithfield
Thermal Design Power (TDP)Differs	73 W	95 W
TcaseDiffers	72.6 °C	64.1 °C
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 installed	1	1
Processor socketDiffers	LGA 1156 (Socket H)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	382 M	230 M
Processing Die sizeDiffers	81 mm²	206 mm²
CPU multiplier (bus/core ratio)Differs	24	14
SteppingKnown for one	K0	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-SDRAM	Unknown — not stated by the source
Memory clock speeds supported by processorKnown for one	1066,1333 MHz	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 processor	No	No
Processor front side busKnown for one	Unknown — not stated by the source	800 MHz
Processor core voltage (AC)Known for one	Unknown — not stated by the source	1.25 - 1.40 V
Memory1 differ
Internal memoryDiffers	3 GB	4 GB
Maximum internal memory	16 GB	16 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory slots	4x DIMM	4x DIMM
Memory clock speed	1333 MHz	1333 MHz
Memory channelsKnown for one	Dual-channel	Unknown — not stated by the source
Non-ECC	Yes	Yes
Storage3 differ
Total storage capacityDiffers	500 GB	1 TB
Optical drive typeDiffers	DVD Super Multi DL	Blu-Ray DVD Combo
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	500 GB	1 TB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
Card reader integrated	Yes	Yes
Compatible memory cards	CF, CF+, Memory Stick (MS), MicroDrive, MiniSD, MMC, MMC Mobile, MMC+, MS Duo, MS PRO, MS PRO Duo, RS-MMC, SD, SmartMedia, xD	CF, CF+, Memory Stick (MS), MicroDrive, MiniSD, MMC, MMC Mobile, MMC+, MS Duo, MS PRO, MS PRO Duo, RS-MMC, SD, SmartMedia, xD
Graphics4 differ
On-board graphics card	Yes	Yes
Discrete graphics card modelDiffers	Not available	NVIDIA® GeForce® GT 320
Number of discrete graphics cardsDiffers	0	1
On-board graphics card familyDiffers	Intel® HD Graphics	AMD Radeon HD 3000
On-board graphics card modelDiffers	Intel® HD Graphics	AMD Radeon HD 3000
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
Discrete graphics card memoryKnown for one	Unknown — not stated by the source	1 GB
Performance2 differ
Product type	PC	PC
Motherboard chipsetDiffers	Intel® H57	AMD 760G
Motherboard form factor	micro ATX	micro ATX
Password protection	Yes	Yes
Audio output channelsDiffers	5.1 channels	7.1 channels
Optical driveidentical
Optical drives quantity	1	1
Network2 differ
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesDiffers	10,100,1000 Mbit/s	10,100 Mbit/s
Wi-FiDiffers	No	Yes
Top Wi-Fi standardKnown for one	Unknown — not stated by the source	Wi-Fi 4 (802.11n)
Wi-Fi standardsKnown for one	Unknown — not stated by the source	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers	8	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
HDMI ports quantityDiffers	0	1
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Line-out	Yes	Yes
Line-in	Yes	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantityDiffers	1	2
DVI port	Yes	Yes
PS/2 ports quantity	0	0
Firewire (IEEE 1394) portsDiffers	1	0
S/PDIF out port	Yes	Yes
Expansion slotsidentical
Number of 3.5" bays	3	3
Poweridentical
Power supply	300 W	300 W
Power supply input voltage	100 - 240 V	100 - 240 V
Power supply input frequency	50 - 60 Hz	50 - 60 Hz
Designidentical
Chassis type	Mini Tower	Mini Tower
Placement supported	Vertical	Vertical
Number of 5.25" bays	2	2
Liquid cooling system	No	No
Product colour	Black	Black
Country of origin	China	China
Softwareidentical
Operating system installed	Windows 7 Home Premium	Windows 7 Home Premium
Operating system architecture	64-bit	64-bit
Drivers included	Yes	Yes
Displayidentical
Display included	No	No
Processor special features9 differ
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Embedded options available	No	No
Enhanced Intel SpeedStep TechnologyDiffers	Yes	No
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	45 nm	Unknown — not stated by the source
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable TechnologyDiffers	Yes	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	Yes	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)Differs	Yes	No
Intel Virtualization Technology (VT-x)Differs	Yes	No
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	Yes	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® Small Business Advantage (Intel® SBA)	No	No
Intel® Wireless Display (Intel® WiDi)	No	No
Physical Address Extension (PAE)Differs	Yes	32 bit
Processor ARK IDDiffers	48505	27512
Processor codeKnown for one	SLBUD	Unknown — not stated by the source
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction setsKnown for one	SSE4.2	Unknown — not stated by the source
Thermal Monitoring Technologies	No	No
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Quick Sync Video Technology	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Conflict-Free processor	No	No
Intel® Active Management Technology (Intel® AMT)Known for one	Unknown — not stated by the source	No
Intel® High Definition Audio (Intel® HD Audio)Known for one	Unknown — not stated by the source	No
Intel® Matrix Storage Technology (Intel® MST)Known for one	Unknown — not stated by the source	No
Intel® Smart Response TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Rapid Start TechnologyKnown for one	Unknown — not stated by the source	No
Intel Smart Connect TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	No
Audioidentical
Audio system	HD	HD
Weight & dimensionsidentical
Width	175 mm	175 mm
Depth	414 mm	414 mm
Height	387 mm	387 mm
Weight	9.6 kg	9.6 kg
Packaging dataidentical
Package width	498 mm	498 mm
Package depth	599 mm	599 mm
Package height	245 mm	245 mm
Package weight	14 kg	14 kg
Packaging contentidentical
Mouse included	Yes	Yes
Keyboard included	Yes	Yes
Numeric keypad	Yes	Yes
Cables included	AC	AC
Manual	Yes	Yes
Keyboardidentical
Windows keys	Yes	Yes

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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