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AMD Ryzen 5 7645HX vs AMD Ryzen 9 7945HX3D

AMD Ryzen 5 7645HX

► remove from comparison AMD R5 7645HX

The AMD Ryzen 5 7645HX is a fast high-end laptop processor of the Dragon Range series. It offers 6 cores based on the Zen 4 architecture that supports hyperthreading (12 threads). The cores clock from 4 (base) up to 5 GHz (single core boost).

The performance of the R5 7645HX should be significantly higher than the fastest 6-core CPU of the Ryzen 6000 mobile series the Ryzen 5 6600H. Especially single threaded performance should be very good thanks to the new Zen 4 cores and relatively high clock speeds. This means even the old Ryzen 9 6980HX (also 5 GHz, but Zen 3) should be slightly slower in single threaded workloads.

The Dragon Range series still uses a chiplet design with two CCD-clusters (each with 8 possible cores, the 7645HX only uses one CCD with 6 of the 8 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 R5 7645HX is rated at a TDP of 55 Watt and can be configured up to 75 Watt (cTDP).

AMD Ryzen 9 7945HX3D

► remove from comparison 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).

ModelAMD Ryzen 5 7645HXAMD Ryzen 9 7945HX3D
SeriesAMD Dragon Range (Zen 4, Ryzen 7045)AMD Dragon Range (Zen 4, Ryzen 7045)
CodenameDragon Range (Zen4)Dragon Range-HX (Zen 4)
Clock4000 - 5000 MHz2300 - 5400 MHz
L1 Cache384 KB1 MB
L2 Cache6 MB16 MB
L3 Cache32 MB128 MB
Cores / Threads6 / 1216 / 32
16 x 5.4 GHz AMD Zen 4
TDP55 Watt55 Watt
Transistors9900000 Million
Technology5 nm5 nm
max. Temp.100 °C89 °C
iGPUAMD Radeon 610M (400 - 2200 MHz)AMD Radeon 610M (400 - 2200 MHz)
Architecturex86x86
Announced
Manufacturerwww.amd.comwww.amd.com
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
SocketFL1

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - R5 7645HX
45.7 pt (63%)
Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - R9 7945HX3D
57 pt (79%)
Cinebench 2024 - CB24 CPU Single Core
115 Points (80%)
Cinebench 2024 - CB24 CPU Multi Core
1772 Points (33%)
Cinebench R23 - Cinebench R23 Multi Core
13985 Points (13%)
32782 Points (30%)
Cinebench R23 - Cinebench R23 Single Core
1809 Points (77%)
1935 Points (82%)
Cinebench R20 - Cinebench R20 CPU (Single Core)
699 Points (78%)
755 Points (84%)
Cinebench R20 - Cinebench R20 CPU (Multi Core)
5467 Points (13%)
13033 Points (32%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
2276 Points (14%)
5600 Points (35%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
289 Points (87%)
311 Points (94%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
25.7 Points (33%)
61.9 Points (81%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
3.7 Points (92%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
7717 Points (47%)
8478 Points (51%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
44716 Points (32%)
70414 Points (51%)
wPrime 2.10 - wPrime 2.0 1024m *
249.9 s (3%)
wPrime 2.10 - wPrime 2.0 32m *
5.9 s (1%)
wPrime 1.55 - wPrime 1.55 1024m *
81.7 s (0%)
wPrime 1.55 - wPrime 1.55 32m *
2.9 s (2%)
WinRAR - WinRAR 4.0
13352 Points (21%)
51122 Points (81%)
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
60373 MIPS (35%)
136201 MIPS (78%)
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
7124 MIPS (85%)
7573 MIPS (91%)
X264 HD Benchmark 4.0 - x264 Pass 2
135.9 fps (47%)
X264 HD Benchmark 4.0 - x264 Pass 1
328.4 fps (76%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
18.6 fps (33%)
36.4 fps (64%)
TrueCrypt - TrueCrypt Serpent
1 GB/s (0%)
2.5 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
1.7 GB/s (29%)
3.8 GB/s (66%)
TrueCrypt - TrueCrypt AES
12.6 GB/s (33%)
23.4 GB/s (61%)
Blender - Blender 3.3 Classroom CPU *
360 Seconds (5%)
150 Seconds (2%)
Blender - Blender 2.79 BMW27 CPU *
224 Seconds (2%)
95 Seconds (1%)
R Benchmark 2.5 - R Benchmark 2.5 *
0.4 sec (9%)
0.4 sec (9%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
8 s (2%)
6.4 s (1%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
17.2 s (1%)
13.9 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
410.8 s (2%)
337.8 s (2%)
3DMark 11 - 3DM11 Performance Physics
20726 Points (56%)
29707 Points (80%)
3DMark - 3DMark Cloud Gate Physics
16892 Points (43%)
3DMark - 3DMark Fire Strike Standard Physics
26756 Points (48%)
38826 Points (69%)
3DMark - 3DMark Time Spy CPU
8601 Points (36%)
14131 Points (60%)
Geekbench 6.2 - Geekbench 6.2 Single-Core
2717 Points (82%)
2916 Points (89%)
Geekbench 6.2 - Geekbench 6.2 Multi-Core
11717 Points (46%)
16957 Points (67%)
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
1971 Points (83%)
2133 Points (90%)
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
10145 Points (18%)
19875 Points (36%)
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
1924 Points (8%)
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
10185 Points (32%)
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
7927 Points (79%)
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
41241 Points (45%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
481 ms (1%)
421.3 ms (0%)
Octane V2 - Octane V2 Total Score
87916 Points (79%)
97066 Points (87%)
WebXPRT 4 - WebXPRT 4 Score
273 Points (78%)
328 Points (94%)
WebXPRT 3 - WebXPRT 3 Score
331 Points (69%)
480 Points (100%)
CrossMark - CrossMark Overall
1939 Points (74%)
2086 Points (80%)
Power Consumption - Prime95 Power Consumption - external Monitor *
124 Watt (21%)
157.2 Watt (27%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
128 Watt (23%)
187.3 Watt (34%)
Power Consumption - Idle Power Consumption - external Monitor *
19.4 Watt (13%)
28.9 Watt (19%)
Power Consumption - Idle Power Consumption 150cd 1min *
24.6 Watt (27%)
17.2 Watt (19%)
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
29.9 Points per Watt (22%)

Average Benchmarks AMD Ryzen 5 7645HX → 100% n=34

Average Benchmarks AMD Ryzen 9 7945HX3D → 156% n=34

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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v1.26
log 13. 02:48:46

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#3 did not recreate cache, as it is less than 5 days old! Created at Fri, 10 May 2024 05:37:21 +0200 +0.001s ... 0.001s

#4 composed specs +0.021s ... 0.023s

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#6 getting avg benchmarks for device 14942 +0.022s ... 0.045s

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#9 got single benchmarks 15073 +0.012s ... 0.086s

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#11 min, max, avg, median took s +0.302s ... 0.387s

#12 return log +0.03s ... 0.417s

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Redaktion, 2017-09- 8 (Update: 2023-07- 1)