CPUs

AMD Ryzen Threadripper 3960X vs Apple M3 Ultra (28C60G) Full Specs

24 Cores
48 Threads
3.8GHz
28 Cores(20P+8E)
28 Threads(20P+8E)
4.05GHz
TDP
280W
TDP
300W
Bandwidth
102.4GB/s
DDR4
Bandwidth
819.2GB/s
LPDDR5
iGPU
0
iGPU
··
-
··
21.2 TFLOPSFP16
Socket
Socket
-

Ryzen Threadripper 3960XRyzen Threadripper 3960X1,682
x1
M3 Ultra (28C60G)M3 Ultra (28C60G)3,221
x1.91

24 Cores
24P
-
28 Cores
20P
8E
48 Threads
48P
-
28 Threads
20P
8E

Base Clock
3.8GHz
Base Clock
4.05GHz
Boost Clock
4.5GHz
Boost Clock
-
Overclocking
Unlocked
Overclocking
Locked

L1i
32KB P
-
L1i
192KB P
128KB E
L1d
32KB P
-
L1d
128KB P
64KB E
L2
512KB P
-
-
L2
64MB P shared
4MB E shared
L3
128MB
L3
-
SLC Cache
-
SLC Cache
96MB

Type
DDR4
Type
LPDDR5
Max Memory
512GB
Max Memory
128GB
ECC
Yes
ECC
No
Channels
4
Channels
8
Bus Width
256-bit
Bus Width
1024-bit
Speed
3200MT/s
Speed
6400MT/s
Bandwidth
102.4GB/s
Bandwidth
819.2GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
102.4GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
819.2GB/s

TDP
280W
TDP
300W
Peak Power
280W
Peak Power
-
Max Operating Temp
95°C Max
Max Operating Temp
100°C Max
Included Cooler
0
Included Cooler
-

Bus Type
PCIe
Bus Type
-
Bus Config
8 lanes
Bus Config
-
Bus Speed
16GT/s
Bus Speed
-
Bus Bandwidth
16GB/s
Bus Bandwidth
-

PCIe
PCIe 4.0 x64
126GB/sBandwidth
PCIe
PCIe 4.0 x32
63GB/sBandwidth

iGPU
0
iGPU
Shaders
-
Shaders
7680
Boost Clock
-
Boost Clock
1.38GHz
··
-
··
21.2 TFLOPSFP16

NPU Model
-
NPU Model
H15 Erebus
NPU Cores
-
NPU Cores
32
NPU Clock
-
NPU Clock
2.36GHz
Performance
-
Performance
36 TOPSFP16

Manufacturer
Manufacturer
ISA
x86-64
ISA
AArch64
Architecture
Architecture
Family
Family
Branding
Ryzen Threadripper 2017 branding
Branding
M3 Ultra  branding
Codename
Castle Peak
Aspen HighlandsDie
Castle Peak 4CCDVariant
-
-
Codename
Palma-D
-
M3 UltraVariant
EverestP-Core
Sawtooth E-Core
Market Segment
Workstation
Market Segment
Workstation
Release Date
Nov 25, 2019
Release Date
Mar 5, 2025

Foundry
TSMC
Foundry
TSMC
Other Foundries
GlobalFoundriesIO
Other Foundries
-
Fabrication Node
N7
12LPIO
Fabrication Node
N3B
-
Die Size
296mm²
416mm²IO
Die Size
954mm²
-
Transistor Count
15.2 Billion
8.3 BillionIO
Transistor Count
184 Billion
-
Transistor Density
51 MTr/mm²
20 MTr/mm²IO
Transistor Density
193 MTr/mm²
-

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