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AMD Ryzen 7 7840HS

AMD R7 7840HS

The Ryzen 7 7840HS is a powerful Phoenix family chip that saw the light of day in H1 2023. The processor features 8 cores (16 threads thanks to SMT support) running at 3.8 GHz. The highest Boost clock speed achievable is 5.1 GHz.

Not only does this APU has full might of the Zen 4 architecture at its disposal, it also comes with the new Ryzen AI technology that's set to make generative AI more ubiquitous than ever before. Last but not the least, the Radeon 780M serves as the integrated GPU.

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. Ryzen AI is coming after Intel's DL Boost and GNA technologies; time will tell if this move by AMD is a good idea.

Perhaps more importantly, Zen 4 introduces 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 7840HS has 16 MB of L3 cache and a seriously fast RAM controller (up to LPDDR5x-7500 and up to DDR5-5600, ECC-enabled memory included). PCI-Express speeds are capped at 1.97 GB/s per lane which corresponds to the 4.0 spec.

This Ryzen 7 series chip is designed to run 64-bit Windows 11, 64-bit Windows 10 or Linux; please note that it isn't overclockable and neither is it user-replaceable. It gets soldered down for good instead (FP7, FP7r2, FP8 socket interfaces).

Performance

The average 7840HS in our database is in the same league as the Core i7-12700H, Core i7-12850HX, Core i9-12900H, Core i9-13900H and also the Ryzen 9 7940HS, as far as multi-thread benchmark scores are concerned. This is a very fast chip, as of Q3 2023.

Your mileage may vary depending on how high the CPU power limits are and how competent the cooling solution of your system is.

Graphics

The Radeon 780M (12 CUs / 768 shaders, up to 2,700 MHz) is capable of powering 4 monitors simultaneously with resolutions as high as SUHD 4320p. It will also have little issue hardware-encoding and hardware-decoding the most widely used video codecs (AV1, HEVC, AVC). As far as gaming is concerned, the thing will let you play most games at 1080p as long as you are fine with moderate quality settings. Long story short, this is the best iGPU money can buy, as of H2 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 35 W to 54 W, giving system makers a choice between improving battery life and making the system they're designing insanely fast. Either way, an active cooling solution is a must for a laptop or a mini-PC built around this APU.

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

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

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

AMD Ryzen 9 7940HS compare4 - 5.2 GHz8 / 16 cores16 MB L3
AMD Ryzen 9 PRO 7940HS compare4 - 5.2 GHz8 / 16 cores16 MB L3
AMD Ryzen 7 7840HS « 3.8 - 5.1 GHz8 / 16 cores16 MB L3
AMD Ryzen 7 7840S compare3.8 - 5.1 GHz8 / 16 cores16 MB L3
AMD Ryzen 7 PRO 7840HS compare3.8 - 5.1 GHz8 / 16 cores16 MB L3
AMD Ryzen 5 7640HS compare4.3 - 5 GHz6 / 12 cores16 MB L3
Clock Rate3800 - 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)35 Watt
Manufacturing Technology4 nm
Die Size178 mm2
Max. Temperature100 °C
SocketFP7/FP7r2/FP8
FeaturesDDR5-5600/LPDDR5x-7500 RAM (incl. ECC), PCIe 4, Ryzen AI, 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 780M ( - 2700 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
45.7 pt (63%)
Cinebench 2024 - CB24 CPU Single Core
min: 101     avg: 104.5     median: 105 (73%)     max: 107 Points
Cinebench R23 - Cinebench R23 Multi Core
min: 15515     avg: 16432     median: 16282.5 (15%)     max: 17214 Points
Cinebench R23 - Cinebench R23 Single Core
min: 1737     avg: 1771     median: 1775 (75%)     max: 1812 Points
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 661     avg: 686     median: 689 (77%)     max: 705 Points
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 6061     avg: 6418     median: 6361.5 (16%)     max: 6744 Points
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 2473     avg: 2592     median: 2565 (16%)     max: 2729 Points
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Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 270     avg: 277.9     median: 279 (84%)     max: 286 Points
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 29.7     avg: 30     median: 30 (39%)     max: 30.25 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 3.29     avg: 3.3     median: 3.3 (82%)     max: 3.33 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 7574     avg: 7642     median: 7641.5 (46%)     max: 7709 points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 45602     avg: 47933     median: 47933 (35%)     max: 50264 points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 83726     avg: 85395     median: 85395 (59%)     max: 87064 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 14015     avg: 14096     median: 14096 (17%)     max: 14177 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 71.922     avg: 72.4     median: 72.4 (1%)     max: 72.819 s
wPrime 2.10 - wPrime 2.0 32m *
min: 2.626     avg: 2.6     median: 2.6 (1%)     max: 2.658 s
WinRAR - WinRAR 4.0
min: 6428     avg: 7064     median: 7063.5 (11%)     max: 7699 points
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 59538     avg: 69052     median: 70243 (40%)     max: 73035 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 6049     avg: 6559     median: 6632 (79%)     max: 6754 MIPS
X264 HD Benchmark 4.0 - x264 Pass 2
min: 144.1     avg: 146.7     median: 146.7 (51%)     max: 149.3 fps
X264 HD Benchmark 4.0 - x264 Pass 1
min: 281.5     avg: 289.8     median: 289.8 (67%)     max: 298 fps
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 11.7     avg: 19.8     median: 20.4 (36%)     max: 21.8 fps
05101520253035Tooltip
TrueCrypt - TrueCrypt AES
min: 14.7     avg: 14.8     median: 14.8 (39%)     max: 14.9 GB/s
Blender - Blender 3.3 Classroom CPU *
min: 298     avg: 324.8     median: 318 (4%)     max: 463 Seconds
Blender - Blender 2.79 BMW27 CPU *
min: 185     avg: 198.7     median: 196 (1%)     max: 229 Seconds
R Benchmark 2.5 - R Benchmark 2.5 *
min: 0.4184     avg: 0.4     median: 0.4 (9%)     max: 0.4739 sec
3DMark 06 - CPU - 3DMark 06 - CPU
min: 15312     avg: 15685     median: 15663 (33%)     max: 16073 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 7.112     avg: 7.9     median: 7.9 (2%)     max: 8.774 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 17.697     avg: 19.5     median: 19.5 (1%)     max: 21.271 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 655.388     avg: 690     median: 689.9 (3%)     max: 724.411 s
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 76708     avg: 82457     median: 83358.5 (73%)     max: 85884 Points
3DMark 11 - 3DM11 Performance Physics
min: 17320     avg: 22184     median: 22615 (61%)     max: 25584 Points
3DMark - 3DMark Ice Storm Physics
min: 77280     avg: 89035     median: 91414 (74%)     max: 93910 Points
3DMark - 3DMark Ice Storm Extreme Physics
min: 84349     avg: 89853     median: 91645 (74%)     max: 93208 Points
3DMark - 3DMark Ice Storm Unlimited Physics
min: 84416     avg: 91454     median: 92596 (78%)     max: 95508 Points
3DMark - 3DMark Cloud Gate Physics
min: 13602     avg: 19711     median: 20681 (52%)     max: 21602 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 24338     avg: 27680     median: 27921 (50%)     max: 29343 Points
3DMark - 3DMark Time Spy CPU
min: 9433     avg: 11035     median: 11145 (47%)     max: 12218 Points
Geekbench 6.2 - Geekbench 6.2 Single-Core
min: 2585     avg: 2662     median: 2670 (72%)     max: 2721 points
Geekbench 6.2 - Geekbench 6.2 Multi-Core
min: 12111     avg: 12974     median: 13100 (52%)     max: 13498 points
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 1837     avg: 1968     median: 1967 (83%)     max: 2017 points