M1 Ultra 20C48G vs M1 Ultra 20C64G

M1 Ultra 20C48G
M1 Ultra 20C64G
20 Cores
20 Threads
3.23GHz Clock
20 Cores
20 Threads
3.23GHz Clock
Socket
Unknown
Socket
Unknown
iGPU
48-Core M1 Ultra
iGPU
64-Core M1 Ultra
GB6S 2,400
64%
GB6S 2,400
64%
GB6M 18,650
78%
GB6M 18,650
78%
CB23S 1,550
66%
CB23S 1,550
66%
CB23M 23,520
57%
CB23M 23,520
57%
Manufacturer
Apple
Manufacturer
Apple
Architecture
Apple Silicon 10
Architecture
Apple Silicon 10
Family
M Series
Family
M Series
Instruction Set (ISA)
ARMv8.5-A
Instruction Set (ISA)
ARMv8.5-A
Codename
Jade-2C
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M1 Ultra
P-Core
Firestorm
-
-
E-Core
Icestorm
Codename
Jade-2C
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M1 Ultra
P-Core
Firestorm
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-
E-Core
Icestorm
Market Segment
Desktop
Market Segment
Desktop
Release Date
3/8/2022
Release Date
3/8/2022
Foundry
TSMC
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-
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Foundry
TSMC
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-
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Node
N5
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-
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Node
N5
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-
-
Die Size
864 mm²
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-
-
Die Size
864 mm²
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-
-
Transistor Count
114 Billion
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-
-
Transistor Count
114 Billion
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-
-
Unknown
Unknown
20 Cores
16 P-Cores
-
4 E-Cores
20 Cores
16 P-Cores
-
4 E-Cores
20 Threads
16 P-Threads
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4 E-Threads
20 Threads
16 P-Threads
-
4 E-Threads
P-Core
3.23GHz
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-
P-Core
3.23GHz
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-
-
-
-
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E-Core
2.1GHz
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E-Core
2.1GHz
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Overclocking
Locked
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-
-
Overclocking
Locked
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-
-
Integrated Chipset
-
Integrated Chipset
-
-
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-
-
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-
-
-
-
-
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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
-
-
48MB Shared
12-way set associative
-
-
-
-
-
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4MB Shared (E-Core)
16-way set associative
L2
-
-
48MB Shared
12-way set associative
-
-
-
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4MB Shared (E-Core)
16-way set associative
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-
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96MB SLC Cache
-
-
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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
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-
-
Temp
100°C Max
-
Temp
100°C Max
-
Included Cooler
Not Included
Included Cooler
Not Included
PCIe 4.0 x24 Lanes
PCIe 4.0 x24 Lanes
48-Core M1 Ultra
6144 Shaders
1290MHz
64-Core M1 Ultra
8192 Shaders
1290MHz
-
-
-
32 Cores
-
32 Cores
22 TOPS
FP16
22 TOPS
FP16
-
-
-
-
No Cellular
No Cellular
Change Results