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Celeron 3855U - Intel
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Celeron 3855U
skylake u (front; standard).png
General Info
DesignerIntel
ManufacturerIntel
Model Number3855U
Part NumberFJ8066201931008
S-SpecSR2EV
MarketMobile
IntroductionAugust 15, 2015 (announced)
December 27, 2015 (launched)
Release Price$107.00
General Specs
FamilyCeleron
Series3000
LockedYes
Frequency1,600 MHz
Bus typeOPI
Bus rate4 GT/s
Clock multiplier16
Microarchitecture
ISAx86-64 (x86)
MicroarchitectureSkylake
Core NameSkylake U
Core Family6
Core Model78
Core SteppingD1
Process14 nm
Transistors1,750,000,000
TechnologyCMOS
Die98.57 mm²
10.3 mm × 9.57 mm
MCPYes (2 dies)
Word Size64 bit
Cores2
Threads2
Max CPUs1 (Uniprocessor)
Max Memory32 GiB
Electrical
Vcore0.55 V-1.52 V
TDP15 W
cTDP down10 W
Tjunction0 °C – 100 °C
Tstorage-25 °C – 125 °C
Packaging
PackageFCBGA-1356 (BGA)
Dimension42 mm x 24 mm x 1.3 mm
Pitch0.65 mm
Ball Count1356
Ball CompSAC405
InterconnectBGA-1356

Celeron 3855U is a 64-bit dual-core budget x86 mobile microprocessor introduced by Intel in late 2015. Fabricated on a 14 nm process based on the Skylake microarchitecture, this processor operates at 1.6 GHz. The 3855U has a TDP of 15 W with a configurable TDP-down of 10 W. This chip incorporates the HD Graphics 510 GPU operating at 300 MHz with a burst frequency of 900 MHz. This processor supports up to 32 GiB of non-ECC dual-channel DDR4-2133 memory.

Cache[edit]

Main article: Skylake § Cache

[Edit/Modify Cache Info]

hierarchy icon.svg
Cache Organization
Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory.

The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC.

Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies.

Note: All units are in kibibytes and mebibytes.
L1$128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
L1I$64 KiB
0.0625 MiB
65,536 B
6.103516e-5 GiB
2x32 KiB8-way set associative 
L1D$64 KiB
0.0625 MiB
65,536 B
6.103516e-5 GiB
2x32 KiB8-way set associativewrite-back

L2$512 KiB
0.5 MiB
524,288 B
4.882812e-4 GiB
  2x256 KiB4-way set associativewrite-back

L3$2 MiB
2,048 KiB
2,097,152 B
0.00195 GiB
  2x1 MiB write-back

Memory controller[edit]

[Edit/Modify Memory Info]

ram icons.svg
Integrated Memory Controller
Max TypeDDR4-2133, LPDDR3-1866, DDR3L-1600
Supports ECCNo
Max Mem32 GiB
Controllers1
Channels2
Max Bandwidth31.79 GiB/s
Bandwidth
Single 15.89 GiB/s
Double 31.79 GiB/s

Expansions[edit]

[Edit/Modify Expansions Info]

ide icon.svg
Expansion Options
PCIe
Revision2.0
Max Lanes10
Configs1x4, 2x2, 1x2+2x1, 4x1

Graphics[edit]

[Edit/Modify IGP Info]

screen icon.svg
Integrated Graphics Information
GPUHD Graphics 510
DesignerIntelDevice ID0x1906
Execution Units12Max Displays3
Max Memory32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
Frequency300 MHz
0.3 GHz
300,000 KHz
Burst Frequency900 MHz
0.9 GHz
900,000 KHz
OutputDisplayPort, Embedded DisplayPort, HDMI, DVI

Max Resolution
HDMI4096x2304 @24 Hz
DP4096x2304 @60 Hz
eDP4096x2304 @60 Hz

Standards
DirectX12
OpenGL4.4
OpenCL2.0
DP1.2
eDP1.3
HDMI1.4a

Additional Features
Intel Quick Sync Video
Intel Clear Video HD

Features[edit]

[Edit/Modify Supported Features]

Cog-icon-grey.svg
Supported x86 Extensions & Processor Features
MMXMMX Extension
EMMXExtended MMX Extension
SSEStreaming SIMD Extensions
SSE2Streaming SIMD Extensions 2
SSE3Streaming SIMD Extensions 3
SSSE3Supplemental SSE3
SSE4.1Streaming SIMD Extensions 4.1
SSE4.2Streaming SIMD Extensions 4.2
ABMAdvanced Bit Manipulation
BMI1Bit Manipulation Instruction Set 1
BMI2Bit Manipulation Instruction Set 2
AESAES Encryption Instructions
RdRandHardware RNG
ADXMulti-Precision Add-Carry
CLMULCarry-less Multiplication Extension
F16C16-bit Floating Point Conversion
x86-1616-bit x86
x86-3232-bit x86
x86-6464-bit x86
RealReal Mode
ProtectedProtected Mode
SMMSystem Management Mode
FPUIntegrated x87 FPU
NXNo-eXecute
EISTEnhanced SpeedStep Technology
VT-xVT-x (Virtualization)
VT-dVT-d (I/O MMU virtualization)
EPTExtended Page Tables (SLAT)
SGXSoftware Guard Extensions
Secure KeySecure Key Technology
Flex MemoryFlex Memory Access
ISRTSmart Response Technology
MWTMy WiFi Technology
IPTIdentity Protection Technology
Facts about "Celeron 3855U - Intel"
Has subobject
"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
Celeron 3855U - Intel#package +
base frequency1,600 MHz (1.6 GHz, 1,600,000 kHz) +
bus rate4,000 MT/s (4 GT/s, 4,000,000 kT/s) +
bus typeOPI +
clock multiplier16 +
core count2 +
core family6 +
core model78 +
core nameSkylake U +
core steppingD1 +
core voltage (max)1.52 V (15.2 dV, 152 cV, 1,520 mV) +
core voltage (min)0.55 V (5.5 dV, 55 cV, 550 mV) +
designerIntel +
device id0x1906 +
die area98.57 mm² (0.153 in², 0.986 cm², 98,570,000 µm²) +
die count2 +
die length10.3 mm (1.03 cm, 0.406 in, 10,300 µm) +
die width9.57 mm (0.957 cm, 0.377 in, 9,570 µm) +
familyCeleron +
first announcedAugust 15, 2015 +
first launchedDecember 27, 2015 +
full page nameintel/celeron/3855u +
has ecc memory supportfalse +
has extended page tables supporttrue +
has featureAdvanced Encryption Standard Instruction Set Extension +, Enhanced SpeedStep Technology +, Intel VT-x +, Intel VT-d +, Secure Key Technology +, Flex Memory Access +, Smart Response Technology +, My WiFi Technology +, Identity Protection Technology +, Extended Page Tables + and Software Guard Extensions +
has intel enhanced speedstep technologytrue +
has intel flex memory access supporttrue +
has intel identity protection technology supporttrue +
has intel my wifi technology supporttrue +
has intel secure key technologytrue +
has intel smart response technology supporttrue +
has intel vt-d technologytrue +
has intel vt-x technologytrue +
has locked clock multipliertrue +
has second level address translation supporttrue +
has x86 advanced encryption standard instruction set extensiontrue +
instance ofmicroprocessor +
integrated gpuHD Graphics 510 +
integrated gpu base frequency300 MHz (0.3 GHz, 300,000 KHz) +
integrated gpu designerIntel +
integrated gpu max frequency900 MHz (0.9 GHz, 900,000 KHz) +
integrated gpu max memory32,768 MiB (33,554,432 KiB, 34,359,738,368 B, 32 GiB) +
is multi-chip packagetrue +
isax86-64 +
isa familyx86 +
l1$ size0.125 MiB (128 KiB, 131,072 B, 1.220703e-4 GiB) +
l1d$ description8-way set associative +
l1d$ size0.0625 MiB (64 KiB, 65,536 B, 6.103516e-5 GiB) +
l1i$ description8-way set associative +
l1i$ size0.0625 MiB (64 KiB, 65,536 B, 6.103516e-5 GiB) +
l2$ description4-way set associative +
l2$ size0.5 MiB (512 KiB, 524,288 B, 4.882812e-4 GiB) +
l3$ size2 MiB (2,048 KiB, 2,097,152 B, 0.00195 GiB) +
ldateDecember 27, 2015 +
main imageFile:skylake u (front; standard).png +
manufacturerIntel +
market segmentMobile +
max cpu count1 +
max junction temperature373.15 K (100 °C, 212 °F, 671.67 °R) +
max memory32,768 MiB (33,554,432 KiB, 34,359,738,368 B, 32 GiB, 0.0313 TiB) +
max memory channels2 +
max pcie lanes10 +
max storage temperature398.15 K (125 °C, 257 °F, 716.67 °R) +
microarchitectureSkylake +
min junction temperature273.15 K (0 °C, 32 °F, 491.67 °R) +
min storage temperature248.15 K (-25 °C, -13 °F, 446.67 °R) +
model number3855U +
nameCeleron 3855U +
packageFCBGA-1356 +
part numberFJ8066201931008 +
process14 nm (0.014 μm, 1.4e-5 mm) +
release price$ 107.00 (€ 96.30, £ 86.67, ¥ 11,056.31) +
s-specSR2EV +
series3000 +
supported memory typeDDR4-2133 +, LPDDR3-1866 + and DDR3L-1600 +
tdp15 W (15,000 mW, 0.0201 hp, 0.015 kW) +
tdp down10 W (10,000 mW, 0.0134 hp, 0.01 kW) +
technologyCMOS +
thread count2 +
transistor count1,750,000,000 +
word size64 bit (8 octets, 16 nibbles) +
x86/has software guard extensionstrue +