AMD Ryzen 5 7645HX vs AMD Ryzen 7 7840HS Full Specs
6 Cores 12 Threads 4GHz | 8 Cores 16 Threads 3.8GHz |
TDP 55W | TDP 45W |
Bandwidth 83.2GB/s DDR5 | Bandwidth 120GB/s · |
iGPU | iGPU |
·· 1.13 TFLOPSFP16 | ·· 8.29 TFLOPSFP16 |
Socket | Socket |
Ryzen 5 7645HX2,678
Ryzen 7 7840HS2,6046 Cores | 8 Cores |
12 Threads | 16 Threads |
Base Clock 4GHz | Base Clock 3.8GHz |
Boost Clock 5GHz | Boost Clock 5.1GHz |
Overclocking Unlocked | Overclocking Locked |
L1i 32KB | L1i 32KB |
L1d 32KB | L1d 32KB |
L2 1MB | L2 1MB |
L3 32MB | L3 16MB |
Type DDR5 | Type · |
Max Memory 64GB | Max Memory 256GB |
ECC No | ECC No |
Channels 2 | Channels 2 |
Bus Width 128-bit | Bus Width 128-bit |
Speed 5200MT/s | Speed 7500MT/s |
Bandwidth 83.2GB/s | Bandwidth 120GB/s |
Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 83.2GB/s | Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 120GB/s |
TDP 55W | TDP 45W |
cTDP-down 45W | cTDP-down 35W |
cTDP-up 75W | cTDP-up 54W |
Max Operating Temp 100°C Max | Max Operating Temp 100°C Max |
Bus Type PCIe | Bus Type PCIe |
Bus Config 4 lanes | Bus Config 4 lanes |
Bus Speed 32GT/s | Bus Speed 16GT/s |
Bus Bandwidth 16GB/s | Bus Bandwidth 8GB/s |
PCIe PCIe 5.0 x28110.3GB/sBandwidth | PCIe PCIe 4.0 x2039.4GB/sBandwidth |
iGPU | iGPU |
Shaders 128 | Shaders 768 |
Boost Clock 2.2GHz | Boost Clock 2.7GHz |
·· 1.13 TFLOPSFP16 | ·· 8.29 TFLOPSFP16 |
NPU Model - | NPU Model Ryzen AI |
Performance - | Performance 10 TOPS |
Manufacturer | Manufacturer |
ISA x86-64 | ISA x86-64 |
Architecture | Architecture |
Family | Family |
Branding  | Branding  |
Codename Dragon Range DurangoDie Dragon Range 1CCDVariant | Codename Phoenix Point - - |
Market Segment Laptop | Market Segment Laptop |
Release Date Jan 4, 2023 | Release Date Jan 3, 2023 |
Foundry TSMC | Foundry TSMC |
Other Foundries TSMCIO | Other Foundries - |
Fabrication Node N5 N6IO | Fabrication Node N4 - |
Die Size 71mm² 122mm²IO | Die Size 178mm² - |
Transistor Count 6.6 Billion 3.4 BillionIO | Transistor Count 25 Billion - |
Transistor Density 93 MTr/mm² 28 MTr/mm²IO | Transistor Density 140 MTr/mm² - |
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Laptops - | Laptops |