M3 Ultra (28C60G) vs M1 Ultra (20C48G)

M3 Ultra (28C60G)
M1 Ultra (20C48G)
28 Cores
28 Threads
4.05GHz Clock
20 Cores
20 Threads
3.23GHz Clock
Socket
Unknown
Socket
Unknown
iGPU
60-Core M3 Ultra
21.47 TFLOPS FP32
iGPU
48-Core M1 Ultra
15.85 TFLOPS FP32
GB6S 3,220
79%
GB6S 2,400
59%
GB6M 27,750
104%
GB6M 18,650
70%
CB23S N/A
0%
CB23S 1,550
60%
CB23M N/A
0%
CB23M 23,520
55%
Manufacturer
Apple
Manufacturer
Apple
Architecture
Apple Silicon 13
Architecture
Apple Silicon 10
Family
M Series
Family
M Series
Instruction Set (ISA)
AArch64
Instruction Set (ISA)
AArch64
Codename
Palma
-
M3 Ultra
P-Core
AS13P
-
-
E-Core
AS13E
Codename
Jade-2C
-
M1 Ultra
P-Core
Firestorm
-
-
E-Core
Icestorm
Market Segment
Desktop
Market Segment
Desktop
Release Date
3/5/2025
Release Date
3/8/2022
Foundry
TSMC
-
-
-
Foundry
TSMC
-
-
-
Node
N3B
-
-
-
Node
N5
-
-
-
Die Size
1005 mm²
-
-
-
Die Size
864 mm²
-
-
-
Transistor Count
184 Billion
-
-
-
Transistor Count
114 Billion
-
-
-
Unknown
Unknown
28 Cores
20 P-Cores
-
8 E-Cores
20 Cores
16 P-Cores
-
4 E-Cores
28 Threads
20 P-Threads
-
8 E-Threads
20 Threads
16 P-Threads
-
4 E-Threads
P-Core
4.05GHz
-
-
P-Core
3.23GHz
-
-
-
-
-
-
-
-
E-Core
2.75GHz
-
E-Core
2.06GHz
-
Overclocking
Locked
-
-
-
Overclocking
Locked
-
-
-
Integrated Chipset
-
Integrated Chipset
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
L0 Instruction
-
-
L0 Instruction
-
-
L0 Data
-
-
L0 Data
-
-
L1 Instruction
192KB/P-Core
6-way set associative
-
-
128KB/E-Core
4-way set associative
L1 Instruction
192KB/P-Core
6-way set associative
-
-
128KB/E-Core
4-way set associative
L1 Data
128KB/P-Core
4-way set associative
-
-
64KB/E-Core
2-way set associative
L1 Data
128KB/P-Core
4-way set associative
-
-
64KB/E-Core
2-way set associative
L2
-
-
64MB Shared
16-way set associative
-
-
-
-
-
-
4MB Shared (E-Core)
16-way set associative
L2
-
-
48MB Shared
12-way set associative
-
-
-
-
-
-
4MB Shared (E-Core)
16-way set associative
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
96MB SLC Cache
-
-
-
96MB SLC Cache
Channels
8
Channels
8
Max Memory
128GB
Max Memory
128GB
ECC
Not Supported
ECC
Not Supported
Bus Width/Channel
128Bit
Bus Width
1024Bit
Bus Width/Channel
128Bit
Bus Width
1024Bit
Clock
3200MHz
Transfer Rate
6400MT/s
Clock
3200MHz
Transfer Rate
6400MT/s
Bandwidth/Channel
102.4GB/s
Bandwidth
819.2GB/s
Bandwidth/Channel
102.4GB/s
Bandwidth
819.2GB/s
TDP
180W
-
-
-
TDP
180W
-
-
-
Temp
100°C Max
-
Temp
100°C Max
-
Included Cooler
Not Included
Included Cooler
Not Included
No PCIe
PCIe 4.0 x24 Lanes
60-Core M3 Ultra
7680 Shaders
1398MHz
21.47 TFLOPS FP32
48-Core M1 Ultra
6144 Shaders
1290MHz
15.85 TFLOPS FP32
-
-
-
32 Cores
-
32 Cores
36 TOPS FP16
22 TOPS FP16
-
-
-
-
No Cellular
No Cellular
Change Comparison