Product comparison · 2 laptops

ERAZER P6661 MD 99509 vs ERAZER X7843 (MD 99558)

147specifications compared
35differ
112identical
27known for one product only

Key differences

Display diagonal
- P6661 MD 99509:39.6 cm (15.6")
- X7843 (MD 99558):43.9 cm (17.3")
Processor model
- P6661 MD 99509:i7-6500U
- X7843 (MD 99558):i7-6700HQ
Processor cores
- P6661 MD 99509:2
- X7843 (MD 99558):4
Processor threads
- P6661 MD 99509:4
- X7843 (MD 99558):8
Processor boost frequency
- P6661 MD 99509:3.1 GHz
- X7843 (MD 99558):3.5 GHz
Processor frequency
- P6661 MD 99509:2.5 GHz
- X7843 (MD 99558):2.6 GHz
System bus rate
- P6661 MD 99509:4 GT/s
- X7843 (MD 99558):8 GT/s
Processor cache
- P6661 MD 99509:4 MB
- X7843 (MD 99558):6 MB

Side by side

Differences highlightedShow differences only

Comparison of P6661 MD 99509, X7843 (MD 99558)
174 specifications	A ERAZER P6661 MD 99509 View product	B ERAZER X7843 (MD 99558)View product
Designidentical
Product type	Laptop	Laptop
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Market positioningKnown for one	Unknown — not stated by the source	Gaming
Display1 differ
Display diagonalDiffers	39.6 cm (15.6")	43.9 cm (17.3")
Display resolution	1920 x 1080 pixels	1920 x 1080 pixels
Touchscreen	No	No
HD type	Full HD	Full HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surface	Matt	Matt
Processor15 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i7	Intel® Core™ i7
Processor generation	6th gen Intel® Core™ i7	6th gen Intel® Core™ i7
Processor modelDiffers	i7-6500U	i7-6700HQ
Processor coresDiffers	2	4
Processor threadsDiffers	4	8
Processor boost frequencyDiffers	3.1 GHz	3.5 GHz
Processor frequencyDiffers	2.5 GHz	2.6 GHz
System bus rateDiffers	4 GT/s	8 GT/s
Processor cacheDiffers	4 MB	6 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketDiffers	LGA 1356 (Socket B2)	BGA 1440
Processor lithography	14 nm	14 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-6500 Mobile series	Intel Core i7-6700 Mobile series
Processor codename	Skylake	Skylake
Bus typeDiffers	OPI	DMI3
FSB Parity	No	No
SteppingDiffers	D1	R0
Thermal Design Power (TDP)Differs	15 W	45 W
Configurable TDP-up frequencyKnown for one	2.6 GHz	Unknown — not stated by the source
Configurable TDP-upKnown for one	25 W	Unknown — not stated by the source
Configurable TDP-downDiffers	7.5 W	35 W
Configurable TDP-down frequencyKnown for one	0.8 GHz	Unknown — not stated by the source
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanesDiffers	12	16
PCI Express configurationsDiffers	1x4, 4x1	1x16, 2x8, 1x8+2x4
PCI Express slots version	3.0	3.0
ECC supported by processor	No	No
Memory1 differ
Internal memory	16 GB	16 GB
Internal memory typeDiffers	DDR3L-SDRAM	DDR4-SDRAM
Memory clock speed	1600 MHz	1600 MHz
Storage1 differ
Total storage capacity	1.25 TB	1.25 TB
Storage media	HDD+SSD	HDD+SSD
Number of HDDs installed	1	1
HDD capacity	1 TB	1 TB
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Number of SSDs installed	1	1
SSD capacity	256 GB	256 GB
Optical drive typeDiffers	DVD Super Multi	No
Card reader integrated	Yes	Yes
Compatible memory cards	SD, SDHC, SDXC	SD, SDHC, SDXC
Graphics5 differ
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	NVIDIA® GeForce® GTX 950M	NVIDIA® GeForce® GTX 980M
Discrete graphics card memoryKnown for one	2 GB	Unknown — not stated by the source
Discrete graphics memory typeKnown for one	GDDR3	Unknown — not stated by the source
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics 520	Intel® HD Graphics 530
Maximum on-board graphics card memoryDiffers	1.74 GB	1.7 GB
On-board graphics card base frequencyDiffers	300 MHz	350 MHz
On-board graphics card dynamic frequency (max)	1050 MHz	1050 MHz
On-board graphics card DirectX version	12.0	12.0
On-board graphics card OpenGL version	4.4	4.4
On-board graphics card IDDiffers	1916	0x191B
Graphics card Open GL support	Yes	Yes
CUDAKnown for one	Yes	Unknown — not stated by the source
CUDA coresKnown for one	640	Unknown — not stated by the source
NVIDIA G-SYNCKnown for one	No	Unknown — not stated by the source
NVIDIA GameWorks VRKnown for one	No	Unknown — not stated by the source
Audioidentical
Audio systemKnown for one	HD	Unknown — not stated by the source
Number of built-in speakers	2	2
Built-in microphone	Yes	Yes
Built-in subwooferKnown for one	Unknown — not stated by the source	Yes
Cameraidentical
Front camera	Yes	Yes
Network1 differ
Wi-Fi	Yes	Yes
Wi-Fi standardsDiffers	Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)	Wi-Fi 5 (802.11ac)
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	4.0	4.0
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	2	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	2	4
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	1	1
DisplayPorts quantityKnown for one	0	Unknown — not stated by the source
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	1	0
Thunderbolt ports quantity	0	0
Combo headphone/mic portKnown for one	Yes	Unknown — not stated by the source
Docking connector	No	No
Mini DisplayPorts quantityKnown for one	Unknown — not stated by the source	2
Headphone outputsKnown for one	Unknown — not stated by the source	1
S/PDIF out portKnown for one	Unknown — not stated by the source	Yes
Microphone inKnown for one	Unknown — not stated by the source	Yes
Keyboardidentical
Pointing device	Touchpad	Touchpad
Numeric keypad	Yes	Yes
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Windows keysKnown for one	Yes	Unknown — not stated by the source
Keyboard backlitKnown for one	Unknown — not stated by the source	Yes
Software1 differ
Operating system installedDiffers	Windows 10	Windows 10 Home
Operating system architecture	64-bit	64-bit
Drivers included	Yes	Yes
Processor special features3 differ
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithography	14 nm	14 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	Yes	Yes
Intel Demand Based Switching	No	No
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	Yes	Yes
Intel HD Graphics	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology version	1.00	1.00
Intel Small Business Advantage (SBA) version	1.00	1.00
Intel Smart Response Technology version	1.00	1.00
Intel Software Guard Extensions (Intel SGX)	Yes	Yes
Intel Stable Image Platform Program (SIPP)	No	No
Intel Stable Image Platform Program (SIPP) version	0.00	0.00
Intel TSX-NI	No	No
Intel TSX-NI version	1.00	1.00
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)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)	No	No
Intel® Built-in Visuals Technology	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	Yes	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® OS Guard	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)	Yes	Yes
Intel® Smart Cache	Yes	Yes
Intel® Smart Response Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	88194	88967
Processor codeDiffers	SR2EZ	SR2FQ
Processor package sizeDiffers	42 X 24 mm	42 x 28 mm
Supported instruction sets	SSE4.1, SSE4.2, AVX 2.0	SSE4.1, SSE4.2, AVX 2.0
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	Yes	Yes
Batteryidentical
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cells	4	4
Battery capacityKnown for one	2950 mAh	Unknown — not stated by the source
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Password protectionKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Weight & dimensions4 differ
WeightDiffers	2.27 kg	3.5 kg
WidthDiffers	380 mm	418 mm
DepthDiffers	260 mm	287 mm
HeightDiffers	25 mm	34.2 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Manual	Yes	Yes
Power cord includedKnown for one	Yes	Unknown — not stated by the source
Quick start guide	Yes	Yes
Warranty card	Yes	Yes
Other featuresidentical
3DKnown for one	No	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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