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Core i5-8400B - Intel
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Core i5-8400B
General Info
DesignerIntel
ManufacturerIntel
Model Numberi5-8400B
ShopAmazon
General Specs
FamilyCore i5
Seriesi5-8000
LockedYes
Bus typeDMI 3.0
Bus rate4 × 8 GT/s
Microarchitecture
ISAx86-64 (x86)
MicroarchitectureCoffee Lake
Core NameCoffee Lake S
Process14 nm
TechnologyCMOS
Die126 mm²
Word Size64 bit
Cores6
Threads6
Max Memory64 GiB
Multiprocessing
Max SMP1-Way (Uniprocessor)

Core i5-8400B is a 64-bit hexa-core mid-range performance x86 microprocessor set to be introduced by Intel in 2018. This processor, which is based on the Coffee Lake microarchitecture, is manufactured on Intel's 3rd generation enhanced 14nm++ process.


DIL16 Blank.svg Preliminary Data! Information presented in this article deal with a microprocessor or chip that was recently announced or leaked, thus missing information regarding its features and exact specification. Information may be incomplete and can change by final release.


Cache

Main article: Coffee Lake § 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$386 KiB
395,264 B
0.377 MiB
L1I$192 KiB
196,608 B
0.188 MiB
6x32 KiB8-way set associative 
L1D$192 KiB
196,608 B
0.188 MiB
6x32 KiB8-way set associativewrite-back
L2$1.5 MiB
1,536 KiB
1,572,864 B
0.00146 GiB
  6x256 KiB4-way set associativewrite-back
L3$9 MiB
9,216 KiB
9,437,184 B
0.00879 GiB
  6x1.5 MiB12-way set associativewrite-back
Retrieved from "https://en.wikichip.org/w/index.php?title=intel/core_i5/i5-8400b&oldid=70680"
Facts about "Core i5-8400B - Intel"
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Core i5-8400B - Intel#pcie +
base frequency2,800 MHz (2.8 GHz, 2,800,000 kHz) +
bus links4 +
bus rate8,000 MT/s (8 GT/s, 8,000,000 kT/s) +
bus typeDMI 3.0 +
clock multiplier28 +
core count6 +
core nameCoffee Lake H +
designerIntel +
device id0x3E9B +
die area126 mm² (0.195 in², 1.26 cm², 126,000,000 µm²) +
familyCore i5 +
first announcedApril 2, 2018 +
first launchedApril 2, 2018 +
full page nameintel/core i5/i5-8400b +
has advanced vector extensionstrue +
has advanced vector extensions 2true +
has ecc memory supportfalse +
has extended page tables supporttrue +
has featureAdvanced Vector Extensions +, Advanced Vector Extensions 2 +, Advanced Encryption Standard Instruction Set Extension +, Turbo Boost Technology 2.0 +, Enhanced SpeedStep Technology +, Intel VT-x +, Intel VT-d +, Extended Page Tables +, Memory Protection Extensions +, Software Guard Extensions +, Secure Key Technology +, OS Guard + and Identity Protection Technology +
has intel enhanced speedstep technologytrue +
has intel identity protection technology supporttrue +
has intel secure key technologytrue +
has intel supervisor mode execution protectiontrue +
has intel turbo boost technology 2 0true +
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 gpuUHD Graphics 630 +
integrated gpu base frequency350 MHz (0.35 GHz, 350,000 KHz) +
integrated gpu designerIntel +
integrated gpu execution units24 +
integrated gpu max frequency1,050 MHz (1.05 GHz, 1,050,000 KHz) +
integrated gpu max memory65,536 MiB (67,108,864 KiB, 68,719,476,736 B, 64 GiB) +
isax86-64 +
isa familyx86 +
l1$ size384 KiB (393,216 B, 0.375 MiB) +
l1d$ description8-way set associative +
l1d$ size192 KiB (196,608 B, 0.188 MiB) +
l1i$ description8-way set associative +
l1i$ size192 KiB (196,608 B, 0.188 MiB) +
l2$ description4-way set associative +
l2$ size1.5 MiB (1,536 KiB, 1,572,864 B, 0.00146 GiB) +
l3$ description12-way set associative +
l3$ size9 MiB (9,216 KiB, 9,437,184 B, 0.00879 GiB) +
ldateApril 2, 2018 +
main imageFile:coffee lake h (front).png +
manufacturerIntel +
market segmentMobile +
max cpu count1 +
max memory65,536 MiB (67,108,864 KiB, 68,719,476,736 B, 64 GiB, 0.0625 TiB) +
max memory bandwidth39.74 GiB/s (40,693.76 MiB/s, 42.671 GB/s, 42,670.5 MB/s, 0.0388 TiB/s, 0.0427 TB/s) +
max memory channels2 +
microarchitectureCoffee Lake +
model numberi5-8400B +
nameCore i5-8400B +
process14 nm (0.014 μm, 1.4e-5 mm) +
release price$ 182.00 (€ 163.80, £ 147.42, ¥ 18,806.06) +
seriesi5-8000 +
smp max ways1 +
supported memory typeDDR4-2666 +
tdp65 W (65,000 mW, 0.0872 hp, 0.065 kW) +
technologyCMOS +
thread count6 +
turbo frequency (1 core)4,000 MHz (4 GHz, 4,000,000 kHz) +
word size64 bit (8 octets, 16 nibbles) +
x86/has memory protection extensionstrue +
x86/has software guard extensionstrue +