AMD Ryzen 9 PRO 5945 vs AMD Ryzen 5 PRO 5645. Specifications, performance, tests

Comprehensive background on the processors being compared, detailing their series, generation, and targeted market segment.

• Family
  AMD Ryzen 5 AMD Ryzen 5
• CPU group
  AMD Ryzen 5000U AMD Ryzen 5000U
• Segment
  Mobile Mobile
• Generation
  4 4

Essential parameters including the number of cores, threads, base and turbo frequencies, and cache size. These metrics provide insight into the processor’s speed—higher values generally indicate better performance.

• CPU Cores / Threads
  12 / 24 6 / 12
• Core architecture
  normal normal
• Cores
  12x 6x
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  Yes Yes
• Frequency
  3.00 GHz 3.70 GHz
• Turbo Frequency (1 Core)
  4.70 GHz 4.60 GHz

The integrated graphics (iGPU) do not influence the CPU performance significantly; they serve as a substitute for a dedicated graphics card in the absence of one or are utilized in mobile devices.

• GPU name
  no iGPU no iGPU
• GPU (Turbo)
  No turbo No turbo

This section details the built-in codecs used for encoding and decoding media content, which significantly enhance processing speed and efficiency.

• h265 / HEVC (8 bit)
  No No
• h265 / HEVC (10 bit)
  No No
• h264
  No No
• VP8
  No No
• VP9
  No No
• AV1
  No No
• AVC
  No No
• VC-1
  No No
• JPEG
  No No

Overview of the types and quantities of RAM supported by AMD Ryzen 5 PRO 5645 and AMD Ryzen 9 PRO 5945. The supported memory frequencies may vary depending on the motherboard configuration.

• Memory type
  LPDDR4-3200 LPDDR4-3200
• Max. Memory
  64 GB 64 GB
• Memory channels
  2 (Dual Channel) 2 (Dual Channel)
• Bandwidth
  51.2 GB/s 51.2 GB/s
• ECC
  No No
• PCIe
  4.0 4.0
• AES-NI
  Yes Yes

Analyze the TDP (Thermal Design Power) requirements of AMD Ryzen 9 PRO 5945 and AMD Ryzen 5 PRO 5645 to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

• TDP (PL1 / PBP)
  65 W 65 W
• Tjunction max.
  95 °C 95 °C

Information on architecture, interfaces, and additional instructions supported by AMD Ryzen 9 PRO 5945 and AMD Ryzen 5 PRO 5645, including virtual machine technologies and fabrication processes.

• Technology
  7 nm 7 nm
• Chip design
  Chiplet Chiplet
• Socket
  AM4 (PGA 1331) AM4 (PGA 1331)
• L2-Cache
  6.00 MB 3.00 MB
• L3-Cache
  64.00 MB 32.00 MB
• Architecture
  Cezanne (Zen 3) Cezanne (Zen 3)
• Operating systems
  Windows 10, Windows 11, Linux Windows 10, Windows 11, Linux
• Virtualization
  AMD-V, SVM AMD-V, SVM
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• Release date
  Q3/2022 Q3/2022
• Part Number
  100-000000831 100-000000833
• Documents
  Technical data sheet Technical data sheet