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AMD Ryzen 7 7840U

AMD R7 7840U

The Ryzen 7 7840U is a powerful laptop processor (APU) of the Phoenix product family. Its eight Zen 4 cores run at 3.3 GHz to 5.1 GHz and are SMT-enabled for a total of 16 processing threads. The great Radeon 780M is responsible for 3D processing and similar duties; the 7840U also features Ryzen AI which is AMD's answer to Intel's GNA and DL Boost.

Architecture & Features

Phoenix family chips are powered by the Zen 4 architecture, much like Dragon Range family chips are. The latter however lacks hardware AI workload acceleration capabilities that Phoenix has.

More importantly, Zen 4 introduces some rather solid AVX512 support (which Zen 3 chips did not have) and, thanks to a plethora of other improvements including larger caches/registers/buffers across the board, is set to bring a double-digit IPC improvement.

Elsewhere, the 7840U has 16 MB of L3 cache and support for super-fast DDR5-5600 and LPDDR5x-7500 RAM. The chip is compatible with USB 4 and thus with Thunderbolt. It comes with 20 PCIe 4 lanes for NVMe SSD speeds of up to 7.8 GB/s.

Systems built around the 7840U are designed to run 64-bit Windows 11, 64-bit Windows 10, or Linux. Please note that this processor is not overclockable and neither is it user-replaceable. It gets soldered down for good instead (FP7, FP7r2, FP8 socket interfaces).

Performance

The average 7840U in our extensive database is about as fast as the Core i7-12650H, as far as multi-thread benchmark scores are concerned. This means the Ryzen 7 APU packs quite a wallop, as of mid 2023.

Thanks to its decent cooling solution and a long-term CPU power limit of 35 W, the Framework Laptop 13.5 is among the fastest systems powered by the 7840U that we know of. It can be about 30% faster than the slowest system featuring the same chip in our database, as of December 2023.

Graphics

The Radeon 780M has 12 CUs (768 shaders) purring away at up to 2,700 MHz. This is exactly the right iGPU for people looking for a bit more horsepower than what Intel's aging Xe options can provide. The Radeon will let you use up to 4 monitors with resolutions as high as SUHD 4320p and it will also HW-decode and HW-encode the most widely used video codecs (including AV1, HEVC and AVC) without breaking a sweat. In terms of gaming, the thing is good enough for 1080p and medium-to-low settings, as of late 2023.

Your mileage may vary depending on how high the CPU power limits are, how competent the cooling solution of your system is, how fast the RAM of your system is (there is no dedicated VRAM here).

Power consumption

This Ryzen 7 series chip has a long-term power limit (default TDP) of 28 W. Laptop makers are free to change that value significantly, with values as low as 15 W and as high as 30 W greenlighted by AMD. Either way, an active cooling solution is a must for any system powered by this chip.

The 7840U is built with TSMC's 4 nm process for high, as of late 2023, energy efficiency.

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

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

AMD Ryzen 7 7840U « 3.3 - 5.1 GHz8 / 16 cores16 MB L3
AMD Ryzen 5 7640U compare3.5 - 4.9 GHz6 / 12 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
SocketFP7/FP7r2/FP8
FeaturesDDR5-5600/LPDDR5x-7500 RAM, PCIe 4, Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
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
42.1 pt (58%)
Cinebench R23 - Cinebench R23 Multi Core
min: 11739     avg: 12884     median: 12719 (12%)     max: 15074 Points
Cinebench R23 - Cinebench R23 Single Core
min: 1373     avg: 1646     median: 1677.5 (71%)     max: 1742 Points
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 533     avg: 644     median: 661.5 (74%)     max: 678 Points
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 4469     avg: 5039     median: 4967.5 (12%)     max: 5917 Points
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 1024.7     avg: 1946     median: 1990 (13%)     max: 2439 Points
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Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 217     avg: 256.3     median: 264 (80%)     max: 272 Points
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 20.46     avg: 22.6     median: 22.6 (29%)     max: 24.8 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 2.6     avg: 2.8     median: 2.8 (69%)     max: 2.97 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 5996     avg: 6669     median: 6669 (40%)     max: 7342 points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 36812     avg: 38490     median: 38489.5 (28%)     max: 40167 points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 59874     avg: 63534     median: 63533.5 (44%)     max: 67193 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 11172     avg: 12089     median: 12089 (15%)     max: 13006 Points
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 50087     avg: 55687     median: 55145 (32%)     max: 62156 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 4657     avg: 5816     median: 5952 (71%)     max: 6408 MIPS
X264 HD Benchmark 4.0 - x264 Pass 2
min: 105.52     avg: 108.8     median: 108.8 (38%)     max: 112.1 fps
X264 HD Benchmark 4.0 - x264 Pass 1
min: 232     avg: 237.3     median: 237.3 (55%)     max: 242.64 fps
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 14.4     avg: 15.7     median: 15.2 (27%)     max: 18.6 fps
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Blender - Blender 3.3 Classroom CPU *
min: 332     avg: 418.5     median: 421 (5%)     max: 503 Seconds
Blender - Blender 2.79 BMW27 CPU *
min: 208     avg: 250.7     median: 259.5 (2%)     max: 270 Seconds
R Benchmark 2.5 - R Benchmark 2.5 *
min: 0.4559     avg: 0.5     median: 0.5 (10%)     max: 0.581 sec
3DMark 06 - CPU - 3DMark 06 - CPU
min: 12402     avg: 12635     median: 12482 (27%)     max: 13021 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 7.238     avg: 8.3     median: 8.3 (2%)     max: 9.397 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 18.168     avg: 20.9     median: 20.9 (1%)     max: 23.633 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 626.26     avg: 706     median: 705.7 (3%)     max: 785.226 s
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 60726     avg: 63048     median: 63563 (56%)     max: 64340 Points
3DMark 11 - 3DM11 Performance Physics
min: 12375     avg: 16776     median: 16474 (45%)     max: 19923 Points
3DMark - 3DMark Ice Storm Physics
min: 64410     avg: 71391     median: 72497 (59%)     max: 76886 Points
3DMark - 3DMark Ice Storm Extreme Physics
min: 64515     avg: 70689     median: 72428 (59%)     max: 75123 Points
3DMark - 3DMark Ice Storm Unlimited Physics
min: 65423     avg: 72363     median: 74802 (63%)     max: 76863 Points
3DMark - 3DMark Cloud Gate Physics
min: 9655     avg: 15027     median: 15932.5 (40%)     max: 17714 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 17823     avg: 21701     median: 21733 (39%)     max: 25050 Points
3DMark - 3DMark Time Spy CPU
min: 6548     avg: 8147     median: 8030 (34%)     max: 9501 Points
Geekbench 6.2 - Geekbench 6.2 Single-Core
min: 1982     avg: 2367     median: 2394 (73%)     max: 2562 points
Geekbench 6.2 - Geekbench 6.2 Multi-Core
min: 7310     avg: 9791     median: 10584 (42%)     max: 11489 points
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 1355     avg: 1705     median: 1738 (73%)     max: 1933 points
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
min: 7399     avg: 9113     median: 9382 (17%)     max: 10558 points
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
min: 1411     avg: 1488     median: 1487.5 (6%)     max: 1564 points
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
min: 8055     avg: 8417     median: 8417 (27%)     max: 8779 points
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
min: 30359     avg: 32401     median: 32400.5 (36%)     max: 34442 points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 509     avg: 567     median: 550 (1%)     max: 746 ms
Octane V2 - Octane V2 Total Score
min: 81820     avg: 82676     median: 82676 (74%)     max: 83532 Points
WebXPRT 4 - WebXPRT 4 Score
min: 196.4     avg: 225.1     median: 231 (66%)     max: 256 Points
WebXPRT 3 - WebXPRT 3 Score
min: 188.4     avg: 262.1     median: 262 (55%)     max: 322 Points
CrossMark - CrossMark Overall
min: 1256     avg: 1513     median: 1544 (59%)     max: 1804 Points
Power Consumption - Prime95 Power Consumption - external Monitor *
min: 33.1     avg: 45.7     median: 47.2 (8%)     max: 54.7 Watt
0510152025303540455055Tooltip
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
min: 36.2     avg: 42.6     median: 41.4 (8%)     max: 50.4 Watt
05101520253035404550Tooltip
Power Consumption - Idle Power Consumption - external Monitor *
min: 3.38     avg: 8.7     median: 7.2 (5%)     max: 14.9 Watt
05101520253035Tooltip
Power Consumption - Idle Power Consumption 150cd 1min *
min: 3.99     avg: 7.9     median: 6.9 (8%)     max: 15.1 Watt
012345678910111213141516171819Tooltip
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
min: 42.1     avg: 48     median: 47.1 (35%)     max: 55.1 Points per Watt
- 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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Reviews for the AMD Ryzen 7 7840U processor

Minisforum Mercury Series EM780 review: Extremely compact mini-PC with AMD Ryzen 7 7840U, 32 GB of RAM and 1 TB SSD

Minisforum Mercury Series EM780 review: Extremely compact mini-PC with AMD Ryzen 7 7840U, 32 GB of RAM and 1 TB SSD

The Mercury Series is Minisforum’s line of mini-PCs that are tiny and yet offer compelling performance. The latest model, known as the EM780, comes with an AMD ...
AMD Ryzen 7 7840U | AMD Radeon 780M | | 238 g
OneXPlayer 2 Pro Gaming-Handheld, Tablet oder Detachable im Test

OneXPlayer 2 Pro gaming handheld, tablet or detachable in review: multifaceted device with strong Ryzen 7

With its clever accessories, the OneXPlay defies classification. The strong AMD Ryzen 7 7840 is great for gaming, but also performs well in many other tasks. On...
AMD Ryzen 7 7840U | AMD Radeon 780M | 8.40" | 876 g
Ayaneo Kun gaming handheld in review: Performance beast for individualists

Ayaneo Kun gaming handheld in review: Performance beast for individualists

The Ayaneo Kun feels extremely high-quality, weighs considerably more than other handhelds, but it has a long-lasting battery and the most powerful Ryzen 7 7840...
AMD Ryzen 7 7840U | AMD Radeon 780M | 8.40" | 942 g
HP Pavilion Plus 14 Ryzen 7 laptop review: Changes in all the right places

HP Pavilion Plus 14 Ryzen 7 laptop review: Changes in all the right places

Last year's Core i7-12700H was fast, but the switch to Zen 4 has done wonders to battery life and efficiency without needing to sacrifice performance. The OLED ...
AMD Ryzen 7 7840U | AMD Radeon 780M | 14.00" | 1.4 kg
Lenovo ThinkPad T14s G4 review: Business laptop is better with AMD Zen4

Lenovo ThinkPad T14s G4 review: Business laptop is better with AMD Zen4

We've already reviewed the current ThinkPad T14s G4 with the Intel processor and high-resolution OLED panel, and now we have the AMD model with the Ryzen 7 7840...
AMD Ryzen 7 7840U | AMD Radeon 780M | 14.00" | 1.4 kg

Ayaneo Air 1S Retro Power : AMD Radeon 780M, 5.50", 0.4 kg
  Review » Ayaneo Air 1S Retro Power gaming handheld in test - Zen4 Power for your pocket

Acer Swift Edge SFE16 Ryzen 7 7840U: AMD Radeon 780M, 16.00", 1.2 kg
  Review » Acer Swift Edge 16 Ryzen 7 7840U laptop review: Zen 4 CPU and 3.2K 120 Hz OLED boost

Framework Laptop 13.5 Ryzen 7 7840U: AMD Radeon 780M, 13.50", 1.3 kg
  Review » Framework Laptop 13.5 Ryzen 7 7840U review: So much better than the Intel version

HP EliteBook 845 G10 5Z4X0ES: AMD Radeon 780M, 14.00", 1.5 kg
  Review » HP EliteBook 845 G10 review: Business laptop impresses with AMD Ryzen 7 7840U and unbeatable price

  External Review » HP EliteBook 845 G10 5Z4X0ES

Lenovo ThinkPad T14s G4-21F8002TGE: AMD Radeon 780M, 14.00", 1.4 kg
  External Review » Lenovo ThinkPad T14s G4-21F8002TGE

HP Pavilion Plus 14-ey0095cl: AMD Radeon 780M, 14.00", 1.4 kg
  External Review » HP Pavilion Plus 14-ey0095cl

Acer Swift Edge SFE16 Ryzen 7 7840U: AMD Radeon 780M, 16.00", 1.2 kg
  External Review » Acer Swift Edge SFE16 Ryzen 7 7840U

Acer Swift Edge SFE16-43: AMD Radeon 780M, 16.00", 1.3 kg
  External Review » Acer Swift Edge SFE16-43

Lenovo Yoga Slim 6 14APU8: AMD Radeon 780M, 14.00", 1.3 kg
  External Review » Lenovo Yoga Slim 6

Minisforum Mercury Series EM780: AMD Radeon 780M, 0.2 kg
   » Minisforum Mercury Series EM780 packs an AMD Ryzen 7 7840U and 32 GB of DDR5 RAM in a 1/4 L chassis

HP EliteBook 845 G10 5Z4X0ES: AMD Radeon 780M, 14.00", 1.5 kg
   » HP's EliteBook 845 G10 is the better choice with the slower AMD Zen4 processor

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» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Phoenix (Zen 4, Ryzen 7040)

» AMD Ryzen 9 7940HS
   8x 4 GHz - 5.2 GHz
» AMD Ryzen 9 PRO 7940HS
   8x 4 GHz - 5.2 GHz
» AMD Ryzen 7 7840HS
   8x 3.8 GHz - 5.1 GHz
» AMD Ryzen 7 7840S
   8x 3.8 GHz - 5.1 GHz
» AMD Ryzen 7 PRO 7840HS
   8x 3.8 GHz - 5.1 GHz
» AMD Ryzen Z1 Extreme
   8x 3.3 GHz - 5.1 GHz
» AMD Ryzen 5 7640HS
   6x 4.3 GHz - 5 GHz
» AMD Ryzen 5 PRO 7640HS
   6x 4.3 GHz - 5 GHz
» AMD Ryzen 7 PRO 7840U
   8x 3.3 GHz - 5.1 GHz
» AMD Ryzen 7 7840U
   8x 3.3 GHz - 5.1 GHz
» AMD Ryzen Z1
   6x 3.2 GHz - 4.9 GHz
» AMD Ryzen 5 PRO 7640U
   6x 3.5 GHz - 4.9 GHz
» AMD Ryzen 5 7640U
   6x 3.5 GHz - 4.9 GHz
» AMD Ryzen 5 PRO 7540U
   6x 3.2 GHz - 4.9 GHz
» AMD Ryzen 5 7545U
   6x 3.2 GHz - 4.9 GHz
» AMD Ryzen 5 7540U
   6x 3.2 GHz - 4.9 GHz
» AMD Ryzen 3 7440U
   4x 3 GHz - 4.7 GHz

Surrounding CPUs

+ AMD Ryzen Z1 Extreme
   8x 3.3 GHz - 5.1 GHz
+ AMD Ryzen 5 7640HS
   6x 4.3 GHz - 5 GHz
+ AMD Ryzen 5 PRO 7640HS
   6x 4.3 GHz - 5 GHz
+ AMD Ryzen 7 PRO 7840U
   8x 3.3 GHz - 5.1 GHz
+ AMD Ryzen 7 8840U
   8x 3.3 GHz - 5.1 GHz
» AMD Ryzen 7 7840U
   8x 3.3 GHz - 5.1 GHz
- Intel Core Ultra 7 155U
   12x 3.8 GHz - 4.8 GHz
- Intel Core Ultra 7 164U
   12x 3.8 GHz - 4.8 GHz
- Intel Core i7-11850H
   8x 2.5 GHz - 4.8 GHz
- Intel Core 7 150U
   10x 1.2 GHz - 5.4 GHz
- Intel Core i7-1365U
   10x 1.3 GHz - 5.2 GHz
> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Notebook Processors > AMD Ryzen 7 7840U Processor - Benchmarks and Specs
Klaus Hinum (Update: 2023-05-10)