CPUs

Apple A19 Pro vs Apple A4 (iPad) Full Specs

6 Cores(2P+4E)
6 Threads(2P+4E)
4.26GHz
1 Cores
1 Threads
1GHz
TDP
5W
TDP
5W
Bandwidth
76.8GB/s
LPDDR5X
Bandwidth
3.2GB/s
LPDDR
iGPU
iGPU
··
4.98 TFLOPSFP16
··
2.13 GFLOPSFP32

A19 ProA19 Pro3,895
x1
A4 (iPad)A4 (iPad)-
-

6 Cores
2P
4E
1 Cores
1P
-
6 Threads
2P
4E
1 Threads
1P
-

Base Clock
4.26GHz
Base Clock
1GHz
Overclocking
Locked
Overclocking
Locked

L1i
192KB P
128KB E
L1i
32KB P
-
L1d
128KB P
64KB E
L1d
32KB P
-
L2
16MB P shared
6MB E shared
L2
512KB P
-
-
SLC Cache
32MB
SLC Cache
-

Type
LPDDR5X
Type
LPDDR
Max Memory
12GB
Max Memory
512MB
ECC
No
ECC
No
Channels
1
Channels
2
Bus Width
64-bit
Bus Width
64-bit
Speed
9600MT/s
Speed
400MT/s
Bandwidth
76.8GB/s
Bandwidth
3.2GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
76.8GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
3.2GB/s

TDP
5W
TDP
5W
Peak Power
12W
Peak Power
-

PCIe
PCIe 4.0 x5
9.8GB/sBandwidth
-

iGPU
iGPU
Shaders
768
Shaders
4
Boost Clock
1.62GHz
Boost Clock
266MHz
··
4.98 TFLOPSFP16
··
2.13 GFLOPSFP32

NPU Model
H18 Apollo
NPU Model
-
NPU Cores
16
NPU Cores
-
NPU Clock
2.17GHz
NPU Clock
-
Performance
35 TOPSINT8
Performance
-

Manufacturer
Manufacturer
ISA
AArch64
ISA
AArch32
Architecture
Architecture
Family
Family
Branding
A19 Pro  branding
Branding
A4  branding
Codename
Thera
A19 ProVariant
AS15PP-Core
AS15EE-Core
Codename
A4
-
Cortex-A8P-Core
-
Market Segment
Smartphone
Market Segment
Tablet
Release Date
Sep 9, 2025
Release Date
Apr 3, 2010

Foundry
TSMC
Foundry
Samsung
Fabrication Node
N3P
Fabrication Node
45nm
Die Size
99mm²
Die Size
53mm²
Transistor Count
17 Billion
Transistor Count
-
Transistor Density
172 MTr/mm²
Transistor Density
-

No images available
No images available

Smartphones
Smartphones
-
Tablets
-
Tablets