From WikiChip
eMAG - Ampere
< ampere computing

Edit Values
ampere a1.png
General Info
DesignerAmpere Computing
Model NumbereMAG
IntroductionFebruary 5, 2018 (announced)
Release Price$950
General Specs
Frequency3,000 MHz
Turbo Frequency3,300 MHz
Process16 nm
Word Size64 bit
Max CPUs1 (Uniprocessor)
Max Memory1 TiB
Vcore0.85 V
VI/O1.8, 3.3
TDP125 W
Tjunction0 °C – 90 °C
PackageFCBGA-3211 (BGA)
Dimension50 mm x 50 mm

eMAG is a 64-bit 32-core ARM server microprocessor introduced by Ampere in 2018. Fabricated on TSMC's 16FF+ based on the Skylark microarchitecture, this processor operates at 3 GHz with a turbo frequency of up to 3.3 GHz and 125 W TDP. This processor supports up to 8 channels of DDR4-2666 ECC memory.

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.


Main article: Skylark § 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$2 MiB
2,048 KiB
2,097,152 B
0.00195 GiB
L1I$1 MiB
1,024 KiB
1,048,576 B
9.765625e-4 GiB
32x32 KiB  
L1D$1 MiB
1,024 KiB
1,048,576 B
9.765625e-4 GiB
32x32 KiB write-through

L2$4 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
  16x256 KiB  

L3$32 MiB
32,768 KiB
33,554,432 B
0.0313 GiB
  1x32 MiB  

Memory controller[edit]

[Edit/Modify Memory Info]

ram icons.svg
Integrated Memory Controller
Max TypeDDR4-2666, DDR4-2400
Supports ECCYes
Max Mem1 TiB
Max Bandwidth158.95 GiB/s
Single 19.89 GiB/s
Double 39.72 GiB/s
Quad 79.47 GiB/s
Hexa 119.21 GiB/s
Octa 158.95 GiB/s


[Edit/Modify Expansions Info]

ide icon.svg
Expansion Options
PCIeRevision: 3.0
Max Lanes: 42
Configuration: x16, x8, x4
USBRevision: 2.0
Max Ports: 2
SATARevision: 3
Max Ports: 4


[Edit/Modify Supported Features]

Supported ARM Extensions & Processor Features
NEONAdvanced SIMD extension
TrustZoneTrustZone Security Extensions
CryptoCryptographic Extension
FPFloating-point Extension

Block Diagram[edit]

ampere a1 block diagram.png

Facts about "eMAG - Ampere"
Has subobject
"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
eMAG - Ampere#package + and eMAG - Ampere#pcie +
base frequency3,000 MHz (3 GHz, 3,000,000 kHz) +
core count32 +
core voltage0.85 V (8.5 dV, 85 cV, 850 mV) +
designerAmpere Computing +
first announcedFebruary 5, 2018 +
full page nameampere computing/emag +
has ecc memory supporttrue +
instance ofmicroprocessor +
io voltage1.8 V (18 dV, 180 cV, 1,800 mV) + and 3.3 V (33 dV, 330 cV, 3,300 mV) +
isaARMv8 +
isa familyARM +
l1$ size2 MiB (2,048 KiB, 2,097,152 B, 0.00195 GiB) +
l1d$ size1 MiB (1,024 KiB, 1,048,576 B, 9.765625e-4 GiB) +
l1i$ size1 MiB (1,024 KiB, 1,048,576 B, 9.765625e-4 GiB) +
l2$ size4 MiB (4,096 KiB, 4,194,304 B, 0.00391 GiB) +
l3$ size32 MiB (32,768 KiB, 33,554,432 B, 0.0313 GiB) +
ldate3000 +
main imageFile:ampere a1.png +
manufacturerTSMC +
market segmentServer +
max cpu count1 +
max junction temperature363.15 K (90 °C, 194 °F, 653.67 °R) +
max memory1,048,576 MiB (1,073,741,824 KiB, 1,099,511,627,776 B, 1,024 GiB, 1 TiB) +
max sata ports4 +
max usb ports2 +
microarchitectureSkylark +
min junction temperature273.15 K (0 °C, 32 °F, 491.67 °R) +
model numbereMAG +
nameeMAG +
packageFCBGA-3211 +
process16 nm (0.016 μm, 1.6e-5 mm) +
release price$ 950.00 (€ 855.00, £ 769.50, ¥ 98,163.50) +
supported memory typeDDR4-2666 + and DDR4-2400 +
tdp125 W (125,000 mW, 0.168 hp, 0.125 kW) +
technologyCMOS +
thread count32 +
turbo frequency3,300 MHz (3.3 GHz, 3,300,000 kHz) +
word size64 bit (8 octets, 16 nibbles) +