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Product comparison · 2 laptops

ERAZER P6661 MD 99509 vs ERAZER X7843 (MD 99558)

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

Key differences

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

Side by side

Differences highlightedShow differences only
174 specifications
A

ERAZER

P6661 MD 99509View product
B

ERAZER

X7843 (MD 99558)View product
Designidentical
Market positioningKnown for oneGaming
Display1 differ
Display diagonalDiffers39.6 cm (15.6")43.9 cm (17.3")
Processor15 differ
Processor modelDiffersi7-6500Ui7-6700HQ
Processor coresDiffers24
Processor threadsDiffers48
Processor boost frequencyDiffers3.1 GHz3.5 GHz
Processor frequencyDiffers2.5 GHz2.6 GHz
System bus rateDiffers4 GT/s8 GT/s
Processor cacheDiffers4 MB6 MB
Processor socketDiffersLGA 1356 (Socket B2)BGA 1440
Processor seriesDiffersIntel Core i7-6500 Mobile seriesIntel Core i7-6700 Mobile series
Bus typeDiffersOPIDMI3
SteppingDiffersD1R0
Thermal Design Power (TDP)Differs15 W45 W
Configurable TDP-up frequencyKnown for one2.6 GHz
Configurable TDP-upKnown for one25 W
Configurable TDP-downDiffers7.5 W35 W
Configurable TDP-down frequencyKnown for one0.8 GHz
Maximum number of PCI Express lanesDiffers1216
PCI Express configurationsDiffers1x4, 4x11x16, 2x8, 1x8+2x4
Memory1 differ
Internal memory typeDiffersDDR3L-SDRAMDDR4-SDRAM
Storage1 differ
HDD sizeKnown for one2.5"
Optical drive typeDiffersDVD Super MultiNo
Graphics5 differ
Discrete graphics card modelDiffersNVIDIA® GeForce® GTX 950MNVIDIA® GeForce® GTX 980M
Discrete graphics card memoryKnown for one2 GB
Discrete graphics memory typeKnown for oneGDDR3
On-board graphics card modelDiffersIntel® HD Graphics 520Intel® HD Graphics 530
Maximum on-board graphics card memoryDiffers1.74 GB1.7 GB
On-board graphics card base frequencyDiffers300 MHz350 MHz
On-board graphics card IDDiffers19160x191B
CUDAKnown for oneYes
CUDA coresKnown for one640
NVIDIA G-SYNCKnown for oneNo
NVIDIA GameWorks VRKnown for oneNo
Audioidentical
Audio systemKnown for oneHD
Built-in subwooferKnown for oneYes
Network1 differ
Wi-Fi standardsDiffersWi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)Wi-Fi 5 (802.11ac)
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers20
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers24
DisplayPorts quantityKnown for one0
VGA (D-Sub) ports quantityDiffers10
Combo headphone/mic portKnown for oneYes
Mini DisplayPorts quantityKnown for one2
Headphone outputsKnown for one1
S/PDIF out portKnown for oneYes
Microphone inKnown for oneYes
Keyboardidentical
Full-size keyboardKnown for oneYes
Windows keysKnown for oneYes
Keyboard backlitKnown for oneYes
Software1 differ
Operating system installedDiffersWindows 10Windows 10 Home
Processor special features3 differ
Processor ARK IDDiffers8819488967
Processor codeDiffersSR2EZSR2FQ
Processor package sizeDiffers42 X 24 mm42 x 28 mm
Batteryidentical
Battery capacityKnown for one2950 mAh
Securityidentical
Password protectionKnown for oneYes
Cable lock slot typeKnown for oneKensington
Weight & dimensions4 differ
WeightDiffers2.27 kg3.5 kg
WidthDiffers380 mm418 mm
DepthDiffers260 mm287 mm
HeightDiffers25 mm34.2 mm
Packaging contentidentical
Power cord includedKnown for oneYes
Other featuresidentical
3DKnown for oneNo

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