AMD Ryzen 7 PRO 5845

AMD Ryzen 7 PRO 5845

AMD Ryzen 7 PRO 5845: Power and Efficiency for Professionals and Enthusiasts

April 2025


Key Features: Zen 3 Architecture and More

The AMD Ryzen 7 PRO 5845 is part of the PRO lineup, aimed at the corporate sector but popular among enthusiasts due to its balance of price and capabilities.

Architecture and Process Technology

- Zen 3 is the foundation of the processor. This architecture provides high IPC (instructions per clock), which is critical for gaming and work tasks.

- TSMC 7nm FinFET is the manufacturing process that ensures energy efficiency (TDP 65W) and stability under load.

- Cache Memory: 32 MB L3 is advantageous for multithreaded tasks like rendering or code compilation.

Performance

- Geekbench 6: 2034 (single-core) / 8729 (multi-core). In comparison, the Ryzen 7 5800X scores around ~1950/8100, making the PRO 5845 about 5-7% faster in multithreading.

- Key Features: Support for PRO technologies (AMD Memory Guard, Secure Processor), which are important for data protection. Also includes Precision Boost Overdrive for manual overclocking.


Compatible Motherboards: AM4 Socket and Chipset Selection

The processor uses the AM4 socket, which remains relevant even in 2025 due to backward compatibility.

Recommended Chipsets

- B550: The optimal choice for most users. Examples of motherboards: MSI B550 Tomahawk ($130–150), ASUS TUF Gaming B550-Plus ($140). PCIe 4.0 support for SSDs and graphics cards.

- X570: For enthusiasts needing advanced features (e.g., ASUS ROG Strix X570-E Gaming, $200–220). More PCIe 4.0 lanes and USB ports.

Selection Features

- BIOS Update: Some motherboards require a firmware update to work with Ryzen 5000 PRO. Check the BIOS version before purchasing.

- VRM: For stable operation of the 8-core CPU, choose motherboards with VRM heatsinks (e.g., Gigabyte B550 AORUS Elite).


Supported Memory: DDR4 and Its Potential

The Ryzen 7 PRO 5845 works only with DDR4, which may disappoint DDR5 fans but helps save on budget.

Recommendations

- Frequencies: Optimal is 3200–3600 MHz. For instance, Kingston Fury Renegade DDR4-3600 (32 GB, ~$90) shows minimal latency.

- Dual-Channel Mode: Be sure to use 2 or 4 modules for maximum bandwidth.

Why Not DDR5?

AM4 chipsets physically do not support DDR5. This is a compromise, but for most tasks, DDR4-3600 is more than sufficient.


Power Supply: Calculating for 65W TDP

With a TDP of 65W, the processor does not require a powerful PSU, but it's important to consider other components.

Recommendations

- Without discrete GPU: A 400W supply is sufficient (e.g., be quiet! Pure Power 11 400W, $60).

- With an NVIDIA RTX 4070 level graphics card: It’s better to choose 600–650W (Corsair RM650x, $100).

- Certification: 80 Plus Gold or higher for efficiency and reliability.

User Experience

A build with an RTX 4060 Ti and Ryzen 7 PRO 5845 consumes about 300W at peak. A 550W PSU (EVGA SuperNOVA 550 G5) handles it without overheating.


Pros and Cons: What is Liked and What is Annoying

Pros

- Energy efficiency: 65W TDP compared to 105W for the Ryzen 7 5800X.

- Support for PRO technologies for security.

- High multithreaded performance for $300–350.

Cons

- No PCIe 5.0 and DDR5.

- Price is higher than non-PRO counterparts (e.g., Ryzen 7 5700X costs $250).


Usage Scenarios: Who is the Processor Made For

1. Work Tasks

- Video editing in DaVinci Resolve: Rendering a 4K project is 30% faster than with the Core i5-12400.

- Programming: Compiling the Linux kernel takes 85 seconds versus 110 with the Ryzen 5 5600X.

2. Gaming

- Paired with RTX 4070: 144 FPS in Full HD (Cyberpunk 2077, high settings).

- More suitable for streaming than the Core i7-12700KF due to 16 threads.

3. Multimedia

- Video transcoding in HandBrake: 20% faster than the previous generation.


Comparison with Competitors

- Intel Core i7-12700 ($320):

- Pros: DDR5 support, higher single-thread performance (~2150 in Geekbench 6).

- Cons: TDP 180W, requires expensive motherboards (LGA 1700).

- Ryzen 7 5800X3D ($350):

- Pros: 96MB L3 cache for gaming.

- Cons: No PRO features, TDP 105W.

Conclusion: The PRO 5845 excels in scenarios where security and energy efficiency are crucial.


Practical Tips for Building a System

1. Cooling

- The stock cooler will suffice, but for quiet operation, choose a tower cooler (DeepCool AK400, $35).

2. BIOS

- Update the BIOS via USB Flashback before installation if the motherboard does not support the CPU out of the box.

3. Case

- A minimum of 2 fans for intake is advised. Example: Fractal Design Meshify C ($90).


Final Conclusion: Who Should Choose the Ryzen 7 PRO 5845

This processor is ideal if:

- You need a balance between performance and power consumption.

- You require PRO features for data protection.

- Your budget is limited to $1000 for the entire build (example: CPU + B550 + 32GB DDR4 + RTX 4060).

Target Audience: IT professionals, streamers, engineers, and those building a PC to last for years without hardware upgrades.


Prices are as of April 2025. Listed prices are for new devices in the USA.

Basic

Label Name
AMD
Platform
Desktop

CPU Specifications

Total Cores
?
Cores is a hardware term that describes the number of independent central processing units in a single computing component (die or chip).
8
Total Threads
?
Where applicable, Intel® Hyper-Threading Technology is only available on Performance-cores.
16
Basic Frequency
3.4GHz
Max Turbo Frequency
?
Max Turbo Frequency is the maximum single-core frequency at which the processor is capable of operating using Intel® Turbo Boost Technology and, if present, Intel® Turbo Boost Max Technology 3.0 and Intel® Thermal Velocity Boost. Frequency is typically measured in gigahertz (GHz), or billion cycles per second.
Up to 4.6GHz
L1 Cache
512KB
L2 Cache
4MB
L3 Cache
32MB
Unlocked for Overclocking
?
AMD`s product warranty does not cover damages caused by overclocking, even when overclocking is enabled via AMD hardware and/or software. GD-26.
No
CPU Socket
?
The socket is the component that provides the mechanical and electrical connections between the processor and motherboard.
AM4
Technology
?
Lithography refers to the semiconductor technology used to manufacture an integrated circuit, and is reported in nanometer (nm), indicative of the size of features built on the semiconductor.
TSMC 7nm FinFET
TDP
65W
Max. Operating Temperature
?
Junction Temperature is the maximum temperature allowed at the processor die.
95°C
PCI Express Version
?
PCI Express Revision is the supported version of the PCI Express standard. Peripheral Component Interconnect Express (or PCIe) is a high-speed serial computer expansion bus standard for attaching hardware devices to a computer. The different PCI Express versions support different data rates.
PCIe 4.0

Memory Specifications

Memory Type
?
Intel® processors come in four different types: Single Channel, Dual Channel, Triple Channel, and Flex Mode. Maximum supported memory speed may be lower when populating multiple DIMMs per channel on products that support multiple memory channels.
DDR4
Memory Channels
?
The number of memory channels refers to the bandwidth operation for real world application.
2
Bus Speed
Up to 3200MT/s

Miscellaneous

OS Support
Windows 11 - 64-Bit Edition, Windows 10 - 64-Bit Edition *Operating System (OS) support will vary by manufacturer.

Benchmarks

Geekbench 6
Single Core Score
2034
Geekbench 6
Multi Core Score
8729
Passmark CPU
Single Core Score
3441
Passmark CPU
Multi Core Score
26057

Compared to Other CPU

Geekbench 6 Single Core
2220 +9.1%
2137 +5.1%
1934 -4.9%
1835 -9.8%
Geekbench 6 Multi Core
9788 +12.1%
9267 +6.2%
8323 -4.7%
7864 -9.9%
Passmark CPU Single Core
3599 +4.6%
3512 +2.1%
3355 -2.5%
3294 -4.3%
Passmark CPU Multi Core
28851 +10.7%
27432 +5.3%
25039 -3.9%
23680 -9.1%