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AMD Ryzen 7 PRO 7840U

AMD R7 PRO 7840U

The AMD Ryzen 7 PRO 7840U is a fast high-end laptop processor of the Phoenix series and fastest model of the U-series. It offers 8 cores (octa core) based on the Zen 4 architecture that supports hyperthreading (16 threads). The cores clock from 3.3 (base) up to 5.1 GHz (single core boost). The processor includes 8 MB L2 cache and 16 MB L3 cache.

Compared to the consumer Ryzen 7 7840U, the PRO models offer additional security, manageability, and reliability features designed for professional users and workstation environments.

The performance of the R7 PRO 7840U is, depending on the workload, only slightly below the Ryzen 7 7840HS (higher base clock speed and TDP). Compared to the previous generation Ryzen 7 PRO 6850U, the 7840U is clearly faster thanks to the Zen 4 architecture and higher clock speeds.

The chip integrates a modern and fasts RDNA 3 graphics card (iGPU) called Radeon 780M with 12 CUs and up to 2.7 GHz clock speed. Furthermore, the Phoenix series include a video engine with AV1 de- and encoding, a new Xilinx FPGA based XDNA AI accelerator (Ryzen AI) that should be faster than the AI engine in the Apple M2 SOC and a dual-channel DDR5-5600 / LPDDR5x-7500 memory controller (with ECC support). The connectivity features includes 2 possible USB 4 (40 Gbps) ports and 20 PCIe 4.0 lanes for a GPU and SSDs.

The Phoenix series uses a single monolithic design (unlike the chiplet design of the 7045HX series) and is manufactured in the modern 4nm process at TSMC. The TDP can be configured between 15 and 30 Watt.

SeriesAMD Phoenix (Zen 4, Ryzen 7040)
CodenamePhoenix (Zen 4)

Series: Phoenix (Zen 4, Ryzen 7040) Phoenix (Zen 4)

AMD Ryzen Z1 Extreme compare3.3 - 5.1 GHz8 / 16 cores16 MB L3
AMD Ryzen 7 PRO 7840U « 3.3 - 5.1 GHz8 / 16 cores16 MB L3
Clock Rate3300 - 5100 MHz
Level 1 Cache512 KB
Level 2 Cache8 MB
Level 3 Cache16 MB
Number of Cores / Threads8 / 16
8 x 5.1 GHz AMD Zen 4
Power Consumption (TDP = Thermal Design Power)28 Watt
Manufacturing Technology4 nm
Die Size178 mm2
Max. Temperature100 °C
GPUAMD Radeon 780M ( - 2700 MHz)
64 Bit64 Bit support
Architecturex86
Announcement Date05/03/2023
Product Link (external)www.amd.com

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
42.7 pt (59%)
Cinebench R23 - Cinebench R23 Multi Core
min: 10576     avg: 13277     median: 13767 (13%)     max: 15142 Points
Cinebench R23 - Cinebench R23 Single Core
min: 1703     avg: 1719     median: 1716 (73%)     max: 1747 Points
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 652     avg: 666     median: 669 (74%)     max: 684 Points
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 4210     avg: 5202     median: 5377 (13%)     max: 5981 Points
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 1590     avg: 2096     median: 2218 (14%)     max: 2418 Points
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Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 247     avg: 263     median: 265 (80%)     max: 273 Points
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 34490     avg: 54214     median: 58386 (34%)     max: 62320 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 5633     avg: 5871     median: 5900 (71%)     max: 5988 MIPS
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 13.6     avg: 16.1     median: 16.5 (29%)     max: 17.8 fps
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Blender - Blender 3.3 Classroom CPU *
min: 354     avg: 440.6     median: 390 (5%)     max: 664 Seconds
Blender - Blender 2.79 BMW27 CPU *
min: 217     avg: 263.4     median: 237 (2%)     max: 380 Seconds
R Benchmark 2.5 - R Benchmark 2.5 *
min: 0.4658     avg: 0.5     median: 0.5 (10%)     max: 0.4807 sec
3DMark 11 - 3DM11 Performance Physics
min: 16111     avg: 17318     median: 17331.5 (47%)     max: 18499 Points
3DMark - 3DMark Cloud Gate Physics
min: 16274     avg: 17360     median: 17641 (45%)     max: 18165 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 21327     avg: 23216     median: 23745 (42%)     max: 24045 Points
3DMark - 3DMark Time Spy CPU
min: 8245     avg: 8428     median: 8405.5 (35%)     max: 8657 Points
Geekbench 6.2 - Geekbench 6.2 Single-Core
min: 1896     avg: 2366     median: 2479 (67%)     max: 2508 points
Geekbench 6.2 - Geekbench 6.2 Multi-Core
min: 7596     avg: 10709     median: 11130 (44%)     max: 12069 points
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 1740     avg: 1824     median: 1853 (78%)     max: 1895 points
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
min: 9663     avg: 10246     median: 9968 (18%)     max: 10920 points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 523     avg: 550     median: 562 (1%)     max: 571 ms
Octane V2 - Octane V2 Total Score
min: 85772     avg: 87443     median: 87442.5 (77%)     max: 89113 Points
WebXPRT 4 - WebXPRT 4 Score
min: 234     avg: 239.5     median: 239.5 (69%)     max: 245 Points
WebXPRT 3 - WebXPRT 3 Score
min: 259     avg: 283.4     median: 283 (59%)     max: 317 Points
CrossMark - CrossMark Overall
min: 1533     avg: 1606     median: 1595 (61%)     max: 1669 Points
Power Consumption - Prime95 Power Consumption - external Monitor *
min: 39.7     avg: 49.9     median: 53.1 (9%)     max: 57.9 Watt
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Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
55.5 Watt (10%)
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Power Consumption - Idle Power Consumption - external Monitor *
min: 5.18     avg: 7     median: 6.9 (5%)     max: 8.88 Watt
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Power Consumption - Idle Power Consumption 150cd 1min *
min: 4.4     avg: 5.4     median: 5.2 (6%)     max: 7.1 Watt
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Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
40 Points per Watt (30%)
- 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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