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AMD Ryzen 7 7840U

AMD R7 7840U

The AMD Ryzen 7 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.

The performance of the R7 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 (28 Watt default).

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

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

AMD Ryzen 7 PRO 7840U compare3.3 - 5.1 GHz8 / 16 cores16 MB L3
AMD Ryzen 7 7840U « 3.3 - 5.1 GHz8 / 16 cores16 MB L3
AMD Ryzen Z1 Extreme compare3.3 - 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
Power Consumption (TDP = Thermal Design Power)15 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)AMD Phoenix (Zen 4, Ryzen 7040) R7 7840U

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
44.2 pt (65%)
AMD E1-2100
2.55 -94%
...
Intel Core i9-11950H
42.9 -3%
AMD Ryzen 9 5900HX
43.2 -2%
Intel Core i9-11900H
43.2 -2%
AMD Ryzen 9 5980HS
43.2 -2%
Intel Core i7-1365U
43.3 -2%
Intel Core i5-12500H
43.4 -2%
AMD Ryzen 7 6800H
43.7 -1%
Intel Core i7-12650H
43.8 -1%
Intel Core i7-1360P
44 0%
AMD Ryzen 7 7840U
44.2
AMD Ryzen 7 7735HS
44.2 0%
AMD Ryzen 9 6900HS
44.3 0%
AMD Ryzen 9 6900HX
44.5 1%
AMD Ryzen 9 PRO 7940HS
44.9 2%
Intel Core i5-13500H
45.1 2%
AMD Ryzen 5 7640HS
46.1 4%
Intel Core i7-13620H
46.3 5%
Intel Core i7-12800H
46.5 5%
Intel Core i7-12700H
46.6 5%
...
AMD Ryzen 9 7945HX3D
63.7 44%
0%
100%
Cinebench R23 - Cinebench R23 Multi Core
min: 11829     avg: 12107     median: 12107 (20%)     max: 12385 Points
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Cinebench R23 - Cinebench R23 Single Core
min: 1581     avg: 1651     median: 1651 (73%)     max: 1721 Points
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Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 611     avg: 640     median: 640 (74%)     max: 669 Points
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Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 4722     avg: 4788     median: 4787.5 (20%)     max: 4853 Points
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Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 1874     avg: 1934     median: 1934 (20%)     max: 1994 Points
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Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 250     avg: 257     median: 257 (78%)     max: 264 Points
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7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 53198     avg: 54758     median: 54757.5 (34%)     max: 56317 MIPS
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7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 5782     avg: 5873     median: 5873 (70%)     max: 5964 MIPS
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HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 14.6     avg: 14.7     median: 14.7 (32%)     max: 14.8 fps
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Blender - Blender 3.3 Classroom CPU *
min: 421     avg: 427.5     median: 427.5 (5%)     max: 434 Seconds
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Blender - Blender 2.79 BMW27 CPU *
min: 257     avg: 259.5     median: 259.5 (2%)     max: 262 Seconds
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R Benchmark 2.5 - R Benchmark 2.5 *
min: 0.4651     avg: 0.5     median: 0.5 (10%)     max: 0.48 sec
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3DMark 11 - 3DM11 Performance Physics
min: 14235     avg: 16337     median: 16337 (44%)     max: 18439 Points
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3DMark - 3DMark Cloud Gate Physics
13466 Points (34%)
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3DMark - 3DMark Fire Strike Standard Physics
min: 18379     avg: 20319     median: 20319 (37%)     max: 22259 Points
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3DMark - 3DMark Time Spy CPU
min: 6601     avg: 7526     median: 7525.5 (37%)     max: 8450 Points
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Geekbench 6.1 - 6.2 - Geekbench 6.2 Single-Core
min: 2283     avg: 2336     median: 2336 (76%)     max: 2389 points
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Geekbench 6.1 - 6.2 - Geekbench 6.2 Multi-Core
min: 7310     avg: 9146     median: 9146 (43%)     max: 10982 points
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Geekbench 5.2 - 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 1652     avg: 1688     median: 1687.5 (73%)     max: 1723 points
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Geekbench 5.2 - 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
min: 7399     avg: 8632     median: 8631.5 (30%)     max: 9864 points
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Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 516     avg: 533     median: 533 (1%)     max: 550 ms
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Octane V2 - Octane V2 Total Score
81820 Points (75%)
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WebXPRT 4 - WebXPRT 4 Score
min: 196.4     avg: 215.7     median: 215.7 (64%)     max: 235 Points
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WebXPRT 3 - WebXPRT 3 Score
min: 235     avg: 266.5     median: 266.5 (56%)     max: 298 Points
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CrossMark - CrossMark Overall
min: 1256     avg: 1400     median: 1400 (54%)     max: 1544 Points
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Power Consumption - Prime95 Power Consumption - external Monitor *
33.1 Watt (6%)
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Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
36.2 Watt (8%)
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Power Consumption - Idle Power Consumption - external Monitor *
3.4 Watt (3%)
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00.20.50.70.91.21.41.61.82.12.32.52.833.23.53.73.94.14.4Tooltip
Power Consumption - Idle Power Consumption 150cd 1min *
4.1 Watt (5%)
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Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
55.1 Points per Watt (41%)
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- 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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