Product comparison · 2 pcs/workstations

Lenovo IdeaCentre K450 Intel® Core™ i7 i7-4770 vs Lenovo Erazer X700 Intel® Core™ i7 X-series i7-3930K

107specifications compared
50differ
57identical
42known for one product only

Key differences

Processor family
- IdeaCentre K450 Intel® Core™ i7 i7-4770:Intel® Core™ i7
- Erazer X700 Intel® Core™ i7 X-series i7-3930K:Intel® Core™ i7 X-series
Processor generation
- IdeaCentre K450 Intel® Core™ i7 i7-4770:4th gen Intel® Core™ i7
- Erazer X700 Intel® Core™ i7 X-series i7-3930K:3rd gen Intel® Core™ i7
Processor model
- IdeaCentre K450 Intel® Core™ i7 i7-4770:i7-4770
- Erazer X700 Intel® Core™ i7 X-series i7-3930K:i7-3930K
Processor cores
- IdeaCentre K450 Intel® Core™ i7 i7-4770:4
- Erazer X700 Intel® Core™ i7 X-series i7-3930K:6
Processor threads
- IdeaCentre K450 Intel® Core™ i7 i7-4770:8
- Erazer X700 Intel® Core™ i7 X-series i7-3930K:12
Processor boost frequency
- IdeaCentre K450 Intel® Core™ i7 i7-4770:3.9 GHz
- Erazer X700 Intel® Core™ i7 X-series i7-3930K:3.8 GHz
Processor frequency
- IdeaCentre K450 Intel® Core™ i7 i7-4770:3.4 GHz
- Erazer X700 Intel® Core™ i7 X-series i7-3930K:3.2 GHz
Processor cache
- IdeaCentre K450 Intel® Core™ i7 i7-4770:8 MB
- Erazer X700 Intel® Core™ i7 X-series i7-3930K:12 MB

Side by side

Differences highlightedShow differences only

Comparison of K450, X700
149 specifications	A Lenovo IdeaCentre K450 Intel® Core™ i7 i7-4770 Model K450 View product	B Lenovo Erazer X700 Intel® Core™ i7 X-series i7-3930K Model X700 View product
Processor21 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i7 X-series
Processor generationDiffers	4th gen Intel® Core™ i7	3rd gen Intel® Core™ i7
Processor modelDiffers	i7-4770	i7-3930K
Processor coresDiffers	4	6
Processor threadsDiffers	8	12
Processor boost frequencyDiffers	3.9 GHz	3.8 GHz
Processor frequencyDiffers	3.4 GHz	3.2 GHz
Processor cacheDiffers	8 MB	12 MB
Processor cache type	Smart Cache	Smart Cache
Bus typeDiffers	DMI2	DMI
FSB Parity	No	No
System bus rate	5 GT/s	5 GT/s
Processor lithographyDiffers	22 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-4700 Desktop series	Intel Core i7-3900 Desktop Series
Processor codenameDiffers	Haswell	Sandy Bridge E
Thermal Design Power (TDP)Differs	84 W	130 W
TcaseDiffers	72.72 °C	66.8 °C
Maximum number of PCI Express lanesDiffers	16	40
PCI Express configurationsKnown for one	1x16, 2x8, 1x8+2x4	Unknown — not stated by the source
PCI Express slots versionDiffers	3.0	2.0
Number of QPI linksKnown for one	1	Unknown — not stated by the source
Number of processors installed	1	1
Processor socketDiffers	LGA 1150 (Socket H3)	LGA 2011 (Socket R)
SteppingDiffers	C0	C2
Maximum internal memory supported by processorDiffers	32 GB	64 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	1333,1600 MHz	1066,1333,1600 MHz
Memory bandwidth supported by processor (max)Differs	25.6 GB/s	51.2 GB/s
ECC supported by processor	No	No
Memory voltage supported by processorKnown for one	1.5 V	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	32
Memory2 differ
Internal memoryDiffers	12 GB	16 GB
Maximum internal memory	32 GB	32 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory slotsKnown for one	4x DIMM	Unknown — not stated by the source
Memory clock speed	1600 MHz	1600 MHz
Memory channelsDiffers	Dual-channel	Quad-channel
Storage2 differ
Total storage capacityDiffers	2 TB	2.12 TB
Optical drive typeDiffers	DVD-RW	Blu-Ray DVD Combo
HDD speed	7200 RPM	7200 RPM
Card reader integrated	Yes	Yes
Compatible memory cardsKnown for one	CF, CF+, Memory Stick (MS), MicroDrive, MMC, MS PRO, SD, SDHC, SDXC	Unknown — not stated by the source
Storage mediaKnown for one	Unknown — not stated by the source	HDD,SSD
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD capacityKnown for one	Unknown — not stated by the source	2 TB
Number of SSDs installedKnown for one	Unknown — not stated by the source	1
SSD capacityKnown for one	Unknown — not stated by the source	128 GB
Graphics2 differ
On-board graphics cardDiffers	Yes	No
On-board graphics card familyKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card modelDiffers	Intel® HD Graphics 4600	Not available
Maximum on-board graphics card memoryKnown for one	2 GB	Unknown — not stated by the source
Number of displays supported (on-board graphics)Known for one	3	Unknown — not stated by the source
On-board graphics card base frequencyKnown for one	350 MHz	Unknown — not stated by the source
On-board graphics card dynamic frequency (max)Known for one	1200 MHz	Unknown — not stated by the source
On-board graphics card DirectX versionKnown for one	11.2/12	Unknown — not stated by the source
On-board graphics card IDKnown for one	0x412	Unknown — not stated by the source
On-board graphics card OpenGL versionKnown for one	4.3	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Unknown — not stated by the source	AMD Radeon HD 8950
Discrete graphics card memoryKnown for one	Unknown — not stated by the source	3 GB
Discrete graphics memory typeKnown for one	Unknown — not stated by the source	GDDR5
Performanceidentical
Product type	PC	PC
Audio output channels	7.1 channels	7.1 channels
Optical driveidentical
Optical drives quantity	1	1
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Wi-Fi	Yes	Yes
Top Wi-Fi standard	Wi-Fi 4 (802.11n)	Wi-Fi 4 (802.11n)
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	2	7
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	4	3
HDMI ports quantity	1	1
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Line-out	Yes	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	0	0
DVI portDiffers	No	Yes
PS/2 ports quantity	0	0
S/PDIF out portKnown for one	Yes	Unknown — not stated by the source
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
Line-inKnown for one	Unknown — not stated by the source	Yes
Design3 differ
Chassis typeDiffers	Desktop	Tower
Placement supportedKnown for one	Vertical	Unknown — not stated by the source
Liquid cooling systemDiffers	No	Yes
Product colourDiffers	Black	Black, Silver
Number of 5.25" baysKnown for one	Unknown — not stated by the source	2
Softwareidentical
Operating system installed	Windows 8	Windows 8
Operating system architecture	64-bit	64-bit
Displayidentical
Display included	No	No
Processor special features13 differ
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	22 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 Technology	No	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 Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Small Business Advantage (SBA) versionKnown for one	1.00	Unknown — not stated by the source
Intel Stable Image Platform Program (SIPP)Known for one	Yes	Unknown — not stated by the source
Intel Stable Image Platform Program (SIPP) versionKnown for one	1.00	Unknown — not stated by the source
Intel TSX-NIKnown for one	No	Unknown — not stated by the source
Intel TSX-NI versionKnown for one	0.00	Unknown — not stated by the source
Intel Trusted Execution TechnologyDiffers	Yes	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)	Yes	Yes
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 TechnologyDiffers	Yes	No
Intel® Insider™Differs	Yes	No
Intel® OS GuardKnown for one	Yes	Unknown — not stated by the source
Intel® Secure KeyKnown for one	Yes	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Wireless Display (Intel® WiDi)Differs	Yes	No
Processor ARK IDDiffers	75122	63697
Processor codeKnown for one	SR149	Unknown — not stated by the source
Processor package sizeDiffers	37.5 x 37.5 mm	52.5 x 45.0 mm
ScalabilityKnown for one	1S	Unknown — not stated by the source
Supported instruction setsDiffers	AVX 2.0, SSE4.1, SSE4.2	AVX, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Thermal solution specificationKnown for one	PCG 2013D	Unknown — not stated by the source
Intel® Turbo Boost Technology	2.0	2.0
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Quick Sync Video TechnologyDiffers	Yes	No
Intel® My WiFi Technology (Intel® MWT)Differs	Yes	No
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)Differs	Yes	No
Conflict-Free processorDiffers	Yes	No
Intel Smart Response Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel® Smart Response TechnologyKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions4 differ
WidthDiffers	180.8 mm	270 mm
DepthDiffers	456.4 mm	610 mm
HeightDiffers	400 mm	530 mm
WeightDiffers	12.7 kg	28 kg
Packaging contentidentical
Mouse included	No	No
Keyboard included	No	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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