AMD Ryzen 5 Pro 9645 vs AMD Ryzen Threadripper 3990X
CPU · Specs Compare
General Parameters
Release Date
Jan 2026
Jan 2020
Manufacturer
Amd
AMD
Type
Desktop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Zen 5 (Granite Ridge)
Zen 2
Processor Number
9645
—
Integrated Graphics
Radeon Graphics
N/A
Package
Manufacturing Process
4 nm
7 nm
Socket
AM5
sTRX4
Power Consumption
65 W
280 W
Peak Operating Temperature
95 °C
95 °C
Transistor Count
—
19.2 billions
CPU Performance
Performance Cores
6
64
Performance Core Threads
12
128
Performance Core Base Frequency
3.9 GHz
2.9 GHz
Performance Core Turbo Frequency
5.4 GHz
4.3 GHz
Total Core Count
6
64
Total Thread Count
12
128
Bus Frequency
100 MHz
100 MHz
Multiplier
39
29x
L1 Cache
80 K per core
96 K per core
L2 Cache
1 MB per core
512 K per core
L3 Cache
32 MB shared
128 MB shared
Unlocked Multiplier
Yes
Yes
Memory Parameters
Memory Types
DDR5-5600
DDR4-3200
ECC Memory Support
Yes
Yes
Max Memory Size
—
256 GB
Max Memory Channels
—
4
Max Memory Bandwidth
—
95.37 GB/s
Graphics Card Parameters
Integrated Graphics
true
—
GPU Base Frequency
400 MHz
—
GPU Max Dynamic Frequency
2200 MHz
—
Shader Units
128
—
Texture Units
8
—
Raster Operation Units
4
—
Execution Units
2
—
Power Consumption
15
—
Miscellaneous
PCIe Version
5.0
4.0
PCIe Lanes
28
64
Benchmark
Cinebench R23
2,150
1,262
Cinebench R23
17,163
75,671
Geekbench 6
3,285
1,138
Geekbench 6
13,515
11,211
Cinebench 2024
132
—
Cinebench 2024
969
—
Passmark CPU
4,641
2,564
Passmark CPU
31,474
80,316
Geekbench 5
—
1,265
Geekbench 5
—
27,453
▲ Specs Compare
Data sourced from official specifications and benchmark tests.