AMD Ryzen 9 7845HX vs AMD Ryzen 5 7645HX. Specifications, performance, tests

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

• Family
  AMD Ryzen 9 AMD Ryzen 5
• CPU group
  AMD Ryzen 7045 AMD Ryzen 7045
• Segment
  Mobile Mobile
• Generation
  6 6

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 Zen 4 6x Zen 4
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  Yes Yes
• Frequency
  3.00 GHz 4.00 GHz
• Turbo Frequency (1 Core)
  5.20 GHz 5.00 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
  AMD Radeon 610M Graphics AMD Radeon 610M Graphics
• GPU frequency
  0.40 GHz 0.40 GHz
• GPU (Turbo)
  2.20 GHz 2.20 GHz
• Execution units
  2 2
• Shader
  128 128
• Max. GPU Memory
  8 GB 8 GB
• Max. displays
  3 3
• Generation
  9 9
• Direct X
  12 12
• Technology
  6 nm 6 nm
• Release date
  Q3/2022 Q3/2022

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)
  Decode / Encode Decode / Encode
• h265 / HEVC (10 bit)
  Decode / Encode Decode / Encode
• h264
  Decode / Encode Decode / Encode
• VP8
  Decode / Encode Decode / Encode
• VP9
  Decode / Encode Decode / Encode
• AV1
  Decode Decode
• AVC
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• JPEG
  Decode / Encode Decode / Encode

Overview of the types and quantities of RAM supported by AMD Ryzen 5 7645HX and AMD Ryzen 9 7845HX. The supported memory frequencies may vary depending on the motherboard configuration.

• Memory type
  DDR5-5200 DDR5-5200
• Max. Memory
  128 GB 128 GB
• Memory channels
  2 (Dual Channel) 2 (Dual Channel)
• Bandwidth
  83.2 GB/s 83.2 GB/s
• ECC
  Yes Yes
• PCIe
  5.0 x 28 5.0 x 28
• AES-NI
  Yes Yes

Analyze the TDP (Thermal Design Power) requirements of AMD Ryzen 9 7845HX and AMD Ryzen 5 7645HX to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

• TDP (PL1 / PBP)
  55 W 55 W
• TDP up
  75 W 75 W
• TDP down
  45 W 45 W
• Tjunction max.
  100 °C 100 °C

Information on architecture, interfaces, and additional instructions supported by AMD Ryzen 9 7845HX and AMD Ryzen 5 7645HX, including virtual machine technologies and fabrication processes.

• Technology
  5 nm 5 nm
• Chip design
  Chiplet Chiplet
• Socket
  FL1 FL1
• L2-Cache
  12.00 MB 6.00 MB
• L3-Cache
  64.00 MB 32.00 MB
• Architecture
  Dragon Range (Zen 4) Dragon Range (Zen 4)
• 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,FMA3, AVX2, AVX512 SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
• Release date
  Q1/2023 Q1/2023
• Part Number
  100-000000871 100-000000872
• Documents
  Technical data sheet Technical data sheet