Cores: 6L3 cache: 32MB (shared)TDP: 65 W Transistor size: 4 nm
Ryzen 5 Pro 9645 - desktop processor produced by Amd for socket AM5 that has 6 cores and 12 threads. The base clock frequency of the CPU is 3900 MHz, but due to Turbo Core technology, it can perform up to 5400 MHz. The size of the L3 cache is 32 MB. Please note that this chip has integrated graphics Radeon Graphics.
Single-Core Performance
90
Multi-Core Performance
49
NanoReview Final Score
72
Compare AMD Ryzen 5 Pro 9645 with other CPUs
Test in Benchmarks
Performance test of AMD Ryzen 5 Pro 9645 in benchmarks
Cinebench
Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
132
Cinebench 2024 (Multi)
1082
GeekBench v6
The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
3288
Geekbench 6 (Multi-Core)
13522
File compression
1170 MB/sec
Clang compilation
105.3 Klines/sec
HTML 5 Browser
232.7 pages/sec
PDF Renderer
361 Mpixels/sec
Text processing
358.7 pages/sec
Background blur
73.7 images/sec
Photo processing
92.3 images/sec
Ray tracing
22.3 Mpixels/sec
PassMark
Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
4636
Passmark CPU (Multi-Core)
31433
Integer math
93 GOps/sec
Floating point math
62.7 GOps/sec
Find prime numbers
235M Primes/sec
Random string sorting
38.4M Strings/sec
Data encryption
17.6 GBytes/sec
Data compression
363.7 MBytes/sec
Physics
1945 Frames/sec
Extended instructions
29.7B Matrices/sec
Sources:
PassMark
[3]
–
1132
samples
Performance Per Watt
Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt
16.6 PPW
Geekbench 6 Multi / Watt
208 PPW
Passmark CPU Mark / Watt
483.6 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Specifications
Ryzen 5 Pro 9645 technical specifications
Vendor
Amd
Released
January 5, 2026
Type
Desktop
Instruction Set
x86-64
Codename
Zen 5 (Granite Ridge)
Model number
9645
Integrated GPU
Radeon Graphics
Performance Cores
P-Cores
6
P-Threads
12
Base Frequency (P)
3.9 GHz
Turbo Boost Frequency (P)
5.4 GHz
Total
Total Cores
6
Total Threads
12
Bus Frequency
100 MHz
Multiplier
39x
L1 Cache
80K (per core)
L2 Cache
1MB (per core)
L3 Cache
32MB (shared)
Unlocked Multiplier
Yes
Fabrication Process
4 nm
TDP (PL1)
65 W
Socket
AM5
Peak Temperature
95°C
Integrated Graphics
Radeon Graphics
GPU Base Clock
400 MHz
GPU Boost Clock
2200 MHz
Shading Units
128
TMUs
8
ROPs
4
Execution Units
2
TGP
15 W
Memory Types
- DDR5-5600
Max. Memory Size
192 GB
Memory Channels
2
Max. Memory Bandwidth
89.6 GB/s
ECC Support
Yes
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