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AMD Ryzen 7 7840S

AMD R7 7840S

AMD Ryzen 7 7840S är en snabb high-end processor för bärbara datorer i Phoenix-serien. Den erbjuder 8 kärnor (octa core) baserade på Zen 4-arkitekturen som stöder hyperthreading (16 trådar). Kärnorna klockar från 3,8 (bas) upp till 5,1 GHz (single core boost). Processorn har 8 MB L2-cache och 16 MB L3-cache. Processorn är exklusivt tillgänglig i Lenovo-bärbara datorer men specifikationerna liknar den vanliga Ryzen 7 7840HS.

Prestandan för R7 7840S ligger bara något under den snabbaste modellen, R9 7940HS, eftersom skillnaden i klockhastighet bara är minimal (t.ex. -100 MHz / 2% långsammare single core boost). Därför bör processorn också prestera något högre än den gamla toppmodellen Ryzen 9 6980HX (8 Zen 3-kärnor med upp till 4,9 GHz) vid 54W TDP och Ryzen 9 6980HS på 35W TDP. Jämfört med den högre Dragon Range-serien bör 7840HS vara liknande som Ryzen 7 7745HX (även 8 Zen 4-kärnor, max 5,1 GHz, 55W TDP, 32 MB L3).

Chipet integrerar ett modernt och snabbt RDNA 3-grafikkort (iGPU) som heter Radeon 780M med 12 CU och upp till 2,7 GHz klockhastighet. Phoenix-serien innehåller dessutom en videomotor med AV1 de- och encoding, en ny Xilinx FPGA-baserad XDNA AI-accelerator (Ryzen AI) som ska vara snabbare än AI-motorn i Apple M2 SOC och en dubbelkanalig DDR5-5600 / LPDDR5x-7500 minneskontroller (med ECC-stöd). Anslutningsfunktionerna inkluderar 2 möjliga USB 4-portar (40 Gbps) och 20 PCIe 4.0-banor för en GPU och SSD-enheter.

Phoenix-serien använder en enda monolitisk design (till skillnad från chiplet-designen i 7045HX-serien) och tillverkas i den moderna 4nm-processen hos TSMC. TDP kan konfigureras mellan 35 och 45 watt.

KodnamnPhoenix-HS (Zen 4)
SerieAMD Phoenix (Zen 4)

Serie: Phoenix (Zen 4) Phoenix-HS (Zen 4)

AMD Ryzen 9 7940HS4 - 5.2 GHz8 / 16 cores16 MB L3
AMD Ryzen 7 7840HS3.8 - 5.1 GHz8 / 16 cores16 MB L3
AMD Ryzen 7 7840S « 3.8 - 5.1 GHz8 / 16 cores16 MB L3
AMD Ryzen 9 PRO 7940HS4 - 5.2 GHz8 / 16 cores16 MB L3
AMD Ryzen 5 7640HS4.3 - 5 GHz6 / 12 cores16 MB L3
Klockfrekvens3800 - 5100 MHz
Level 1-cache512 KB
Level 2-cache8 MB
Level 3-cache16 MB
Antal kärnor / trådar8 / 16
Strömförbrukning (TDP = Thermal Design Power)35 Watt
Tillverkningsprocess4 nm
Kretsstorlek178 mm2
Max. temperatur100 °C
SockelFP7/FP7r2/FP8
FunktionerDDR5-5600/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-bitsstöd
Architecturex86
Lanseringsdatum01/05/2023
Produktlänkwww.amd.com

Prestandatester

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
39.4 pt (66%)
Restrict / Search: Model: Max. age: years
Cinebench 2024 - Cinebench 2024 CPU Single Core
103 Points (52%)
Cinebench 2024 - Cinebench 2024 CPU Multi Core
853 Points (16%)
Cinebench R23 - Cinebench R23 Multi Core
15102 Points (14%)
Restrict / Search: Model: Max. age: years
Cinebench R23 - Cinebench R23 Single Core
1761 Points (72%)
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Cinebench R20 - Cinebench R20 CPU (Single Core)
685 Points (75%)
Cinebench R20 - Cinebench R20 CPU (Multi Core)
5912 Points (14%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 1005.76     genomsnitt: 1901     median: 2222.8 (14%)     max: 2475 Points
Restrict / Search: Model: Max. age: years
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Cinebench R15 - Cinebench R15 CPU Single 64 Bit
274 Points (76%)
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Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
28.6 Points (37%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
3.3 Points (79%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
7579 poäng (46%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
45931 poäng (33%)
wPrime 2.10 - wPrime 2.0 1024m *
341.9 s (4%)
wPrime 2.10 - wPrime 2.0 32m *
10.2 s (2%)
WinRAR - WinRAR 4.0
20369 poäng (32%)
7-Zip 18.03 - 7-Zip 18.03 Multi Thread 4 runs
64696 MIPS (37%)
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
6328 MIPS (75%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
18.6 fps (33%)
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TrueCrypt - TrueCrypt Serpent
1.2 GB/s (35%)
TrueCrypt - TrueCrypt Twofish
1.9 GB/s (33%)
TrueCrypt - TrueCrypt AES
12.9 GB/s (34%)
Blender - Blender 3.3 Classroom CPU *
347 Seconds (4%)
Blender - Blender 2.79 BMW27 CPU *
213 Seconds (2%)
R Benchmark 2.5 - R Benchmark 2.5 *
0.4 sec (10%)
3DMark 06 - CPU - 3DMark 06 - CPU
14547 Points (31%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
7.4 s (2%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
18.1 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
653 s (3%)
3DMark 11 - 3DM11 Performance Physics
20801 Points (51%)
3DMark - 3DMark Fire Strike Standard Physics
26235 Points (47%)
3DMark - 3DMark Time Spy CPU
9676 Points (41%)
Geekbench 6.5 - Geekbench 6.5 Single-Core
2605 poäng (60%)
Geekbench 6.5 - Geekbench 6.5 Multi-Core
12598 poäng (49%)
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Geekbench 5.5 - Geekbench 5.1 - 5.5 64 Bit Single-Core
1939 poäng (65%)
Geekbench 5.5 - Geekbench 5.1 - 5.5 64 Bit Multi-Core
11288 poäng (20%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
553 ms (1%)
Octane V2 - Octane V2 Total Score
91068 Points (60%)
WebXPRT 4 - WebXPRT 4 Score
min: 247     genomsnitt: 247.5     median: 247.5 (64%)     max: 248 Points
WebXPRT 3 - WebXPRT 3 Score
296 Points (53%)
CrossMark - CrossMark Overall
1655 Points (61%)
Power Consumption - Prime95 Power Consumption - external Monitor *
64.2 Watt (11%)
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Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
66.1 Watt (12%)
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Power Consumption - Idle Power Consumption - external Monitor *
8.4 Watt (6%)
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Power Consumption - Idle Power Consumption 150cd 1min *
10.3 Watt (7%)
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Power Consumption - Power Efficiency - Cinebench R15 Multi external Monitor
37.4 Points per Watt (28%)
- Bredd på benchmark-värden för det här grafikkortet
red legend - Genomsnittliga benchmark-värden för det här grafikkortet
* Mindre antal betyder högre prestanda

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    NIMO 17.3" FHD IPS Laptop, AMD Ryzen 7 8745HS 8-Core up to 4.9GHz, 32GB DDR5 RAM 1TB SSD, AMD Radeon 780M Graphics, 100W Type-C Fast Charger, Backlit Keyboard, Fingerprint, USB 4.0

v1.35
log 02. 12:44:30

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#3 did not recreate cache, as it is less than 5 days old! Created at Sun, 01 Feb 2026 05:30:12 +0100 +0.003s ... 0.003s

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#8 composed specs +0.001s ... 0.02s

#9 did output specs +0s ... 0.02s

#10 getting avg benchmarks for device 15098 +0.03s ... 0.051s

#11 got single benchmarks 15098 +0.009s ... 0.059s

#12 got avg benchmarks for devices +0s ... 0.059s

#13 min, max, avg, median took s +1.703s ... 1.763s

#14 no comparison url found in template nbc.compare_page_2 needed +0.796s ... 2.559s

#15 return log +0s ... 2.559s

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Andra processorer i samma serie Phoenix (Zen 4)

» AMD Ryzen 7 8700G
   8x 4.2 GHz - 5.1 GHz
» AMD Ryzen 9 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 Z1 Extreme
   8x 3.3 GHz - 5.1 GHz
» AMD Ryzen 7 PRO 7840U
   8x 3.3 GHz - 5.1 GHz
» AMD Ryzen 7 PRO 7840HS
   8x 3.8 GHz - 5.1 GHz
» AMD Ryzen 7 7840U
   8x 3.3 GHz - 5.1 GHz
» AMD Ryzen 5 7545U
   6x 3.2 GHz - 4.9 GHz
» AMD Ryzen 5 PRO 7640HS
   6x 4.3 GHz - 5 GHz
» AMD Ryzen 9 PRO 7940HS
   8x 4 GHz - 5.2 GHz
» AMD Ryzen 5 7640HS
   6x 4.3 GHz - 5 GHz
» AMD Ryzen 5 PRO 7640U
   6x 3.5 GHz - 4.9 GHz
» AMD Ryzen 5 PRO 7540U
   6x 3.2 GHz - 4.9 GHz
» AMD Ryzen 5 7540U
   6x 3.2 GHz - 4.9 GHz
» AMD Ryzen Z1
   6x 3.2 GHz - 4.9 GHz
» AMD Ryzen 5 PRO 7545U
   6x 3.2 GHz - 4.9 GHz
» AMD Ryzen 5 7640U
   6x 3.5 GHz - 4.9 GHz
» AMD Ryzen 3 7440U
   4x 3 GHz - 4.7 GHz

Näraliggande processorer

+ Intel Core i7-12800H
   14x 1.8 GHz - 4.8 GHz
+ Intel Core Ultra 5 338H
   12x 1.5 GHz - 4.7 GHz
+ Intel Core Ultra 7 155H
   16x 3.8 GHz - 4.8 GHz
+ Intel Core i7-13700H
   14x 1.8 GHz - 5 GHz
+ Intel Core i7-13620H
   10x 1.8 GHz - 4.9 GHz
» AMD Ryzen 7 7840S
   8x 3.8 GHz - 5.1 GHz
- AMD Ryzen AI Max+ 388
   8x 3.6 GHz - 5 GHz
- Intel Core 9 270H
   14x 2 GHz - 5.8 GHz
- AMD Ryzen 7 PRO 8840HS
   8x 3.3 GHz - 5.1 GHz
> Bärbara datorer, laptops - tester och nyheter > Tips & Guider > Mobila processorer - Benchmarklista > AMD Phoenix (Zen 4, Ryzen 7040) R7 7840S Notebook Processor
Klaus Hinum (Update: 2026-01- 8)