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AMD Ryzen 9 7945HX3D

AMD R9 7945HX3D

The AMD Ryzen 9 7945HX3D is a fast high-end laptop processor of the Dragon Range series. It offers 16 cores based on the Zen 4 architecture that supports hyperthreading (32 threads). The cores clock from 2.3 (base) up to 5.4 GHz (single core boost). Compared to the similar R9 7945HX, the 7945HX3D offers an additional 64 MB 3D V-Cache on one CCD-Cluster. This helps in some workloads that can use the additional fast cache (e.g. some games). The guaranteed base clock however was reduced from 2.5 to 2.3 GHz.

The performance of the R9 7945HX3D is similar to the R9 7945HX in workloads that wont make use of the bigger L3 cache. Most games however can use the additional memory. AMD e.g. was advertising the HX3D with 4% to 53% higher performance in 1080p high settings.

The Dragon Range series still uses a chiplet design with two CCD-clusters (each with 8 possible cores) in 5nm and an IO-die (including the memory controller and the Radeon 610M iGPU) in 6nm. The chip integrates 4x USB 3.2 Gen2 (10 Gbps) ports (no USB4), 28 PCIe 5.0 lanes (for GPU and SSDs) and a dual-channel DDR5-5200 memory controller.

The R9 7945HX3D is rated at a TDP of 55 Watt and can be configured up to 75 Watt (cTDP).

SeriesAMD Dragon Range (Zen 4, Ryzen 7045)
CodenameDragon Range-HX (Zen 4)

Series: Dragon Range (Zen 4, Ryzen 7045) Dragon Range-HX (Zen 4)

AMD Ryzen 9 7945HX3D « 2.3 - 5.4 GHz16 / 32 cores128 MB L3
AMD Ryzen 9 7945HX compare2.5 - 5.4 GHz16 / 32 cores64 MB L3
AMD Ryzen 9 7940HX compare2.4 - 5.2 GHz16 / 32 cores64 MB L3
AMD Ryzen 9 7845HX compare3 - 5.2 GHz12 / 24 cores64 MB L3
AMD Ryzen 9 7840HX compare2.9 - 5.1 GHz12 / 24 cores64 MB L3
Clock Rate2300 - 5400 MHz
Level 1 Cache1 MB
Level 2 Cache16 MB
Level 3 Cache128 MB
Number of Cores / Threads16 / 32
16 x 5.4 GHz AMD Zen 4
Power Consumption (TDP = Thermal Design Power)55 Watt
Manufacturing Technology5 nm
Max. Temperature89 °C
SocketFL1
GPUAMD Radeon 610M (400 - 2200 MHz)
64 Bit64 Bit support
Architecturex86
Announcement Date07/28/2023
Product Link (external)www.amd.com

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
57 pt (79%)
Cinebench R23 - Cinebench R23 Multi Core
32782 Points (30%)
Cinebench R20 - Cinebench R20 CPU (Multi Core)
13033 Points (32%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
5600 Points (35%)
02805608401120140016801960224025202800308033603640392042004480476050405320Tooltip
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
311 Points (94%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
61.9 Points (81%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
3.7 Points (92%)
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
136201 MIPS (78%)
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
7573 MIPS (91%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
36.4 fps (64%)
05101520253035Tooltip
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
337.8 s (2%)
3DMark 11 - 3DM11 Performance Physics
29707 Points (80%)
3DMark - 3DMark Fire Strike Standard Physics
38826 Points (69%)
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
19875 points (36%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
421.3 ms (0%)
WebXPRT 3 - WebXPRT 3 Score
480 Points (100%)
Power Consumption - Prime95 Power Consumption - external Monitor *
157.2 Watt (27%)
0102030405060708090100110120130140150160Tooltip
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
187.3 Watt (34%)
0102030405060708090100110120130140150160170180190Tooltip
Power Consumption - Idle Power Consumption - external Monitor *
28.9 Watt (19%)
0510152025303540Tooltip
Power Consumption - Idle Power Consumption 150cd 1min *
17.2 Watt (19%)
05101520Tooltip
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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show all (including archived), 2024, 2023
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Other CPUs of the series Dragon Range (Zen 4, Ryzen 7045)

» AMD Ryzen 9 7945HX3D
   16x 2.3 GHz - 5.4 GHz
» AMD Ryzen 9 7945HX
   16x 2.5 GHz - 5.4 GHz
» AMD Ryzen 9 7940HX
   16x 2.4 GHz - 5.2 GHz
» AMD Ryzen 9 7845HX
   12x 3 GHz - 5.2 GHz
» AMD Ryzen 9 7840HX
   12x 2.9 GHz - 5.1 GHz
» AMD Ryzen 7 7745HX
   8x 3.6 GHz - 5.1 GHz
» AMD Ryzen 5 7645HX
   6x 4 GHz - 5 GHz

Surrounding CPUs

» AMD Ryzen 9 7945HX3D
   16x 2.3 GHz - 5.4 GHz
- AMD Ryzen 9 7945HX
   16x 2.5 GHz - 5.4 GHz
- Intel Core i9-14900HX
   24x 1.6 GHz - 5.8 GHz
- Intel Core i9-13980HX
   24x 1.6 GHz - 5.6 GHz
- Intel Core i9-13950HX
   24x 1.6 GHz - 5.5 GHz
- Intel Core i9-13900HX
   24x 1.6 GHz - 5.4 GHz
> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Notebook Processors > AMD Ryzen 9 7945HX3D Processor - Benchmarks and Specs
Klaus Hinum (Update: 2023-08- 5)