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AMD Ryzen 9 7845HX vs AMD Ryzen 5 7645HX

AMD Ryzen 9 7845HX

► remove from comparison AMD R9 7845HX

The AMD Ryzen 9 7845HX is a fast high-end laptop processor of the Dragon Range series. It offers 12 of the 16 cores based on the Zen 4 architecture that supports hyperthreading (24 threads). The cores clock from 3 (base) up to 5.2 GHz (single core boost). The 7845HX is the second-fastest mobile Ryzen CPU at launch and derived from the desktop Ryzen 9 7900X.

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.

Performance

The average 7845HX in our database is in the same league as the Core i9-13900HX, as far as multi-thread benchmark scores are concerned. This is a super-fast chip, as of mid 2023; of course, your mileage may vary depending on how competent the cooling solution of your laptop is and how high the CPU power limits are.

The R9 7845HX is rated at a TDP of 55 Watt and can be configured from 45 to 75 Watt (cTDP).

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).

ModelAMD Ryzen 9 7845HXAMD Ryzen 5 7645HX
SeriesAMD Dragon Range (Zen 4, Ryzen 7045)AMD Dragon Range (Zen 4, Ryzen 7045)
CodenameDragon Range-HX (Zen 4)Dragon Range (Zen4)
Series: Dragon Range (Zen 4, Ryzen 7045) Dragon Range-HX (Zen 4)
AMD Ryzen 9 7945HX3D compare2.3 - 5.4 GHz16 / 32 cores128 MB L3
AMD Ryzen 9 7945HX compare2.5 - 5.4 GHz16 / 32 cores64 MB L3
AMD Ryzen 9 7845HX « 3 - 5.2 GHz12 / 24 cores64 MB L3
Clock3000 - 5200 MHz4000 - 5000 MHz
L1 Cache768 KB384 KB
L2 Cache12 MB6 MB
L3 Cache64 MB32 MB
Cores / Threads12 / 246 / 12
TDP55 Watt55 Watt
Transistors9900 Million9900000 Million
TechnologyCCD = 5 nm, I/O = 6 nm5 nm
max. Temp.100 °C100 °C
SocketFL1
FeaturesDDR5-5200 RAM, PCIe 5, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
iGPUAMD Radeon 610M (400 - 2200 MHz)AMD Radeon 610M (400 - 2200 MHz)
Architecturex86x86
Announced
Manufacturerwww.amd.comwww.amd.com

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - R9 7845HX
51.8 pt (72%)
Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - R5 7645HX
45.7 pt (63%)
Cinebench R23 - Cinebench R23 Multi Core
26876 Points (25%)
13985 Points (13%)
Cinebench R23 - Cinebench R23 Single Core
1852 Points (79%)
1809 Points (77%)
Cinebench R20 - Cinebench R20 CPU (Single Core)
719 Points (80%)
699 Points (78%)
Cinebench R20 - Cinebench R20 CPU (Multi Core)
10492 Points (26%)
5467 Points (13%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
4320 Points (27%)
2276 Points (14%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
295 Points (89%)
289 Points (87%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
25.7 Points (33%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
7717 Points (47%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
44716 Points (32%)
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%)
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
106033 MIPS (61%)
60373 MIPS (35%)
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
7018 MIPS (84%)
7124 MIPS (85%)
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
29.7 fps (52%)
18.6 fps (33%)
TrueCrypt - TrueCrypt Serpent
1 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
1.7 GB/s (29%)
TrueCrypt - TrueCrypt AES
12.6 GB/s (33%)
Blender - Blender 3.3 Classroom CPU *
185 Seconds (2%)
360 Seconds (5%)
Blender - Blender 2.79 BMW27 CPU *
117 Seconds (1%)
224 Seconds (2%)
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%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
17.2 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
410.8 s (2%)
3DMark 11 - 3DM11 Performance Physics
22073 Points (60%)
20726 Points (56%)
3DMark - 3DMark Cloud Gate Physics
16892 Points (43%)
3DMark - 3DMark Fire Strike Standard Physics
36557 Points (65%)
26756 Points (48%)
3DMark - 3DMark Time Spy CPU
11961 Points (50%)
8601 Points (36%)
Geekbench 6.2 - Geekbench 6.2 Single-Core
2729 Points (83%)
2717 Points (82%)
Geekbench 6.2 - Geekbench 6.2 Multi-Core
12585 Points (50%)
11717 Points (46%)
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
2008 Points (85%)
1971 Points (83%)
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
15068 Points (27%)
10145 Points (18%)
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 (46%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
475 ms (1%)
481 ms (1%)
Octane V2 - Octane V2 Total Score
87916 Points (79%)
WebXPRT 4 - WebXPRT 4 Score
282 Points (81%)
273 Points (78%)
WebXPRT 3 - WebXPRT 3 Score
357 Points (74%)
331 Points (69%)
CrossMark - CrossMark Overall
1992 Points (76%)
1939 Points (74%)
Power Consumption - Prime95 Power Consumption - external Monitor *
190.6 Watt (33%)
124 Watt (21%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
207 Watt (38%)
128 Watt (23%)
Power Consumption - Idle Power Consumption - external Monitor *
39.7 Watt (26%)
19.4 Watt (13%)
Power Consumption - Idle Power Consumption 150cd 1min *
41.9 Watt (46%)
24.6 Watt (27%)
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
20.9 Points per Watt (16%)

Average Benchmarks AMD Ryzen 9 7845HX → 100% n=23

Average Benchmarks AMD Ryzen 5 7645HX → 85% n=23

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