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AMD Ryzen 9 7845HX

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).

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 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
Clock Rate3000 - 5200 MHz
Level 1 Cache768 KB
Level 2 Cache12 MB
Level 3 Cache64 MB
Number of Cores / Threads12 / 24
Power Consumption (TDP = Thermal Design Power)55 Watt
Transistor Count9900 Million
Manufacturing TechnologyCCD = 5 nm, I/O = 6 nm
Max. Temperature100 °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
GPUAMD Radeon 610M (400 - 2200 MHz)
64 Bit64 Bit support
Architecturex86
Announcement Date01/05/2023
Product Link (external)www.amd.com

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
51.8 pt (72%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
4320 Points (27%)
0220440660880110013201540176019802200242026402860308033003520374039604180Tooltip
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
106033 MIPS (61%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
29.7 fps (52%)
0510152025Tooltip
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
475 ms (1%)
Power Consumption - Prime95 Power Consumption - external Monitor *
190.6 Watt (33%)
0153045607590105120135150165180195Tooltip
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
207 Watt (38%)
0153045607590105120135150165180195Tooltip
Power Consumption - Idle Power Consumption - external Monitor *
39.7 Watt (29%)
051015202530354045505560Tooltip
Power Consumption - Idle Power Consumption 150cd 1min *
41.9 Watt (46%)
05101520253035404550556065Tooltip
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
20.9 Points per Watt (16%)
- 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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