AMD EPYC 9255 vs AMD EPYC 9254 vs AMD Ryzen 9 7950X
AMD EPYC 9255
$2,495
AMD EPYC 9254
$2,299
AMD Ryzen 9 7950X
$699
|
24 Cores
48 Threads
3.25GHz Clock
|
24 Cores
48 Threads
2.9GHz Clock
|
16 Cores
32 Threads
4.5GHz Clock
|
|
Socket
SP5
|
Socket
SP5
|
Socket
AM5
|
|
iGPU
No GPU
- -
|
iGPU
No GPU
- -
|
iGPU
Radeon 2CU 2200MHz RDNA 2
560 GFLOPS FP32
|
|
GB6S N/A
0%
|
GB6S 2,140
53%
|
GB6S 2,985
74%
|
|
GB6M N/A
0%
|
GB6M 17,740
66%
|
GB6M 19,485
73%
|
|
CB23S N/A
0%
|
CB23S N/A
0%
|
CB23S 2,055
79%
|
|
CB23M N/A
0%
|
CB23M N/A
0%
|
CB23M 37,520
87%
|
|
Manufacturer
AMD
|
Manufacturer
AMD
|
Manufacturer
AMD
|
|
Architecture
Zen 5
|
Architecture
Zen 4
|
Architecture
Zen 4
|
|
Family
EPYC 9005
|
Family
EPYC 9004
|
Family
Ryzen 7000
|
|
Instruction Set (ISA)
x86-64
|
Instruction Set (ISA)
x86-64
|
Instruction Set (ISA)
x86-64
|
|
Codename
Turin
Eldora
Turin 4CCD
-
-
-
-
-
-
|
Codename
Genoa
Durango
Genoa 4CCD
-
-
-
-
-
-
|
Codename
Raphael
Durango
Raphael 2CCD
-
-
-
-
-
-
|
|
Market Segment
Server
|
Market Segment
Server
|
Market Segment
Desktop
|
|
Release Date
10/10/2024
|
Release Date
11/10/2022
|
Release Date
9/27/2022
|
|
Foundry
TSMC
TSMC (IO Die)
-
-
|
Foundry
TSMC
TSMC (IO Die)
-
-
|
Foundry
TSMC
TSMC (IO Die)
-
-
|
|
Node
N4X
N6 (IO Die)
-
-
|
Node
N5
N6 (IO Die)
-
-
|
Node
N5
N6 (IO Die)
-
-
|
|
Die Size
4x 71 mm²
388 mm² (IO Die)
-
-
|
Die Size
4x 71 mm²
388 mm² (IO Die)
-
-
|
Die Size
2x 71 mm²
122 mm² (IO Die)
-
-
|
|
Transistor Count
4x 8.3 Billion
11 Billion (IO Die)
-
-
|
Transistor Count
4x 6.6 Billion
11 Billion (IO Die)
-
-
|
Transistor Count
2x 6.6 Billion
3.4 Billion (IO Die)
-
-
|
|
24 Cores
-
-
-
|
24 Cores
-
-
-
|
16 Cores
-
-
-
|
|
48 Threads
-
-
-
|
48 Threads
-
-
-
|
32 Threads
-
-
-
|
|
-
3.25GHz
4.3GHz Boost
-
|
-
2.9GHz
4.15GHz Boost
-
|
-
4.5GHz
5.7GHz Boost
-
|
|
-
-
-
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
-
-
-
|
|
Overclocking
Locked
-
-
-
|
Overclocking
Locked
-
-
-
|
Overclocking
Unlocked
-
-
-
|
|
Type
PCIe
|
Type
PCIe
|
Type
PCIe
|
|
-
-
|
-
-
|
-
-
|
|
-
-
|
-
-
|
-
-
|
|
Transfer Rate
32GT/s
|
Transfer Rate
32GT/s
|
Transfer Rate
32GT/s
|
|
-
-
|
-
-
|
-
-
|
|
Lanes
8
|
Lanes
8
|
Lanes
4
|
|
Bandwidth
32GB/s
|
Bandwidth
32GB/s
|
Bandwidth
16GB/s
|
|
Bi-directional
64GB/s
|
Bi-directional
64GB/s
|
Bi-directional
32GB/s
|
|
L0 Instruction
-
-
|
L0 Instruction
-
-
|
L0 Instruction
-
-
|
|
L0 Data
-
-
|
L0 Data
-
-
|
L0 Data
-
-
|
|
L1 Instruction
32KB/Core
8-way set associative
-
-
-
-
|
L1 Instruction
32KB/Core
8-way set associative
-
-
-
-
|
L1 Instruction
32KB/Core
8-way set associative
-
-
-
-
|
|
L1 Data
48KB/Core
12-way set associative
-
-
-
-
|
L1 Data
32KB/Core
8-way set associative
-
-
-
-
|
L1 Data
32KB/Core
8-way set associative
-
-
-
-
|
|
L2
1024KB/Core
16-way set associative
-
-
-
-
-
-
-
-
-
-
|
L2
1024KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
|
L2
1024KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
|
|
L3
-
128MB Shared
-
16-way set associative
-
-
-
-
-
|
L3
-
128MB Shared
-
16-way set associative
-
-
-
-
-
|
L3
-
64MB Shared
-
16-way set associative
-
-
-
-
-
|
|
-
-
-
-
|
-
-
-
-
|
-
-
-
-
|
|
Channels
12
|
Channels
12
|
Channels
2
|
|
Max Memory
6144GB
|
Max Memory
6144GB
|
Max Memory
192GB
|
|
ECC
Supported
|
ECC
Supported
|
ECC
Supported
|
|
Bus Width/Channel
64Bit
Bus Width
768Bit
|
Bus Width/Channel
64Bit
Bus Width
768Bit
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
|
Clock
3000MHz
Transfer Rate
6000MT/s
|
Clock
2400MHz
Transfer Rate
4800MT/s
|
Clock
2600MHz
Transfer Rate
5200MT/s
|
|
Bandwidth/Channel
48.0GB/s
Bandwidth
576.0GB/s
|
Bandwidth/Channel
38.4GB/s
Bandwidth
460.8GB/s
|
Bandwidth/Channel
41.6GB/s
Bandwidth
83.2GB/s
|
|
TDP
200W
200W cTDP Down
240W cTDP Up
-
|
TDP
200W
200W cTDP Down
240W cTDP Up
-
|
TDP
170W
-
-
230W Peak
|
|
Temp
-
-
|
-
-
-
|
Temp
95°C Max
-
|
|
Included Cooler
Not Included
|
Included Cooler
Not Included
|
Included Cooler
Not Included
|
|
PCIe 5.0 x128 Lanes
|
PCIe 5.0 x128 Lanes
|
PCIe 5.0 x24 Lanes
|
|
No GPU
-
-
- -
|
No GPU
-
-
- -
|
Radeon 2CU 2200MHz RDNA 2
128 Shaders
2200MHz
560 GFLOPS FP32
|
|
No NPU
-
|
No NPU
-
|
No NPU
-
|
|
-
-
|
-
-
|
-
-
|
|
-
|
-
|
-
|
|
-
-
|
-
-
|
-
-
|
|
No Cellular
|
No Cellular
|
No Cellular
|
Copy Link