CPUs

Apple A16 (iPad) vs UNISOC W517 Full Specs

5 Cores(2P+3E)
5 Threads(2P+3E)
3.44GHz
4 Cores(1P+3E)
4 Threads(1P+3E)
2GHz
TDP
5W
TDP
3W
Bandwidth
51.2GB/s
LPDDR5
Bandwidth
9.6GB/s
·
iGPU
iGPU
··
1.37 TFLOPSFP16
··
51.2 GFLOPSFP16

A16 (iPad)A16 (iPad)2,586
x1
W517W517-
-

5 Cores
2P
3E
4 Cores
1P
3E
5 Threads
2P
3E
4 Threads
1P
3E

Base Clock
3.44GHz
Base Clock
2GHz
Overclocking
Locked
Overclocking
Locked

L1i
192KB P
128KB E
L1i
32KB P
32KB E
L1d
128KB P
64KB E
L1d
32KB P
32KB E
L2
16MB P shared
4MB E shared
L2
512KB P
128KB E
-
-
SLC Cache
24MB
SLC Cache
-

Type
LPDDR5
Type
·
Max Memory
8GB
Max Memory
-
ECC
No
ECC
No
Channels
1
Channels
2
Bus Width
64-bit
Bus Width
32-bit
Speed
6400MT/s
Speed
2400MT/s
Bandwidth
51.2GB/s
Bandwidth
9.6GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
51.2GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
9.6GB/s

TDP
5W
TDP
3W

PCIe
PCIe 4.0 x4
7.9GB/sBandwidth
-

iGPU
iGPU
Shaders
512
Shaders
16
Boost Clock
1.34GHz
Boost Clock
800MHz
··
1.37 TFLOPSFP16
··
51.2 GFLOPSFP16

NPU Model
H15 Themis
NPU Model
-
NPU Cores
16
NPU Cores
-
NPU Clock
2.06GHz
NPU Clock
-
Performance
17 TOPSFP16
Performance
-

Modem Model
-
Modem Model
UNISOC LTE 4
Peak Down
-
Peak Down
Up to 150Mbps
Peak Up
-
Peak Up
Up to 50Mbps

Manufacturer
Manufacturer
ISA
AArch64
ISA
AArch64
Architecture
Architecture
Family
Family
-
Branding
A16  branding
Branding
W517  branding
Codename
Crete
A16Variant
EverestP-Core
Sawtooth E-Core
Codename
-
-
Cortex-A75P-Core
Cortex-A55E-Core
Market Segment
Smartphone
Market Segment
Smartphone
Release Date
Mar 4, 2025
Release Date
Sep 6, 2022

Foundry
TSMC
Foundry
TSMC
Fabrication Node
N4P
Fabrication Node
N7
Die Size
115mm²
Die Size
-
Transistor Count
16 Billion
Transistor Count
-
Transistor Density
139 MTr/mm²
Transistor Density
-

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