CPUs

NVIDIA Grace Blackwell GB10 vs AMD EPYC 3451 Full Specs

20 Cores(10P+10E)
20 Threads(10P+10E)
3GHz
16 Cores
32 Threads
2.15GHz
TDP
150W
TDP
100W
Bandwidth
273.1GB/s
LPDDR5X
Bandwidth
85.3GB/s
DDR4
iGPU
GB10
iGPU
-
··
992.9 TFLOPSFP4 Tensor Sparse
··
-
Socket
-
Socket
SP4

20 Cores
10P
10E
16 Cores
16P
-
20 Threads
10P
10E
32 Threads
32P
-

Base Clock
3GHz
Base Clock
2.15GHz
Boost Clock
-
Boost Clock
3GHz
Overclocking
Locked
Overclocking
Locked

L1i
64KB P
L1i
64KB P
L1d
64KB P
L1d
32KB P
L2
1MB P
L2
512KB P
L3
-
L3
32MB

Type
LPDDR5X
Type
DDR4
Max Memory
128GB
Max Memory
64GB
ECC
No
ECC
Yes
Channels
4
Channels
4
Bus Width
256-bit
Bus Width
256-bit
Speed
8533MT/s
Speed
2666MT/s
Bandwidth
273.1GB/s
Bandwidth
85.3GB/s
Bandwidth Calculator
Channels
Transfer Rate
··
273.1GB/s
Bandwidth Calculator
Channels
Transfer Rate
··
85.3GB/s

TDP
150W
TDP
100W
cTDP-down
-
cTDP-down
80W
Max Operating Temp
-
Max Operating Temp
105°C Max

Bus Type
-
Bus Type
PCIe
Bus Config
-
Bus Config
4 lanes
Bus Speed
-
Bus Speed
8GT/s
Bus Bandwidth
-
Bus Bandwidth
4GB/s

-
PCIe
PCIe 3.0 x64
63GB/sBandwidth

iGPU
GB10
iGPU
-
Shaders
6144
Shaders
-
Boost Clock
2.52GHz
Boost Clock
-
··
992.9 TFLOPSFP4 Tensor Sparse
··
-

Manufacturer
NVIDIA
Manufacturer
AMD
ISA
AArch64
ISA
x86-64
Architecture
ARMv9.2-A
Architecture
Zen
Family
-
Family
EPYC 3001
Branding
Grace Blackwell GB10 branding
Branding
EPYC 2017 branding
Codename
Grace Blackwell
GB10Die
Grace Blackwell GB10Variant
Cortex-X925P-Core
Cortex-A725E-Core
Codename
Snowy Owl
ZeppelinDie
Snowy Owl 16CVariant
-
-
Market Segment
Embedded
Market Segment
Embedded
Release Date
Jan 6, 2025
Release Date
Feb 1, 2018

Foundry
TSMC
Foundry
GlobalFoundries
Fabrication Node
N3E
Fabrication Node
14LP
Die Size
-
Die Size
426mm²
Transistor Count
-
Transistor Count
9.6 Billion
Transistor Density
-
Transistor Density
23 MTr/mm²

Desktops
DGX Spark(Late 2025)
Desktops
-