CPUs

AMD Ryzen 5 7640HS vs AMD Ryzen 7 7840H Full Specs

6 Cores
12 Threads
4.3GHz
8 Cores
16 Threads
3.8GHz
TDP
45W
TDP
45W
Bandwidth
120GB/s
·
Bandwidth
120GB/s
·
iGPU
iGPU
··
3.99 TFLOPSFP16
··
8.29 TFLOPSFP16
Socket
Socket

Ryzen 5 7640HSRyzen 5 7640HS2,468
x1.01
Ryzen 7 7840HRyzen 7 7840H2,453
x1

6 Cores
8 Cores
12 Threads
16 Threads

Base Clock
4.3GHz
Base Clock
3.8GHz
Boost Clock
5GHz
Boost Clock
5.1GHz
Overclocking
Locked
Overclocking
Locked

L1i
32KB
L1i
32KB
L1d
32KB
L1d
32KB
L2
1MB
L2
1MB
L3
16MB
L3
16MB

Type
·
Type
·
Max Memory
256GB
Max Memory
256GB
ECC
No
ECC
No
Channels
2
Channels
2
Bus Width
128-bit
Bus Width
128-bit
Speed
7500MT/s
Speed
7500MT/s
Bandwidth
120GB/s
Bandwidth
120GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
120GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
120GB/s

TDP
45W
TDP
45W
cTDP-down
35W
cTDP-down
35W
cTDP-up
54W
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
16GT/s
Bus Speed
16GT/s
Bus Bandwidth
8GB/s
Bus Bandwidth
8GB/s

PCIe
PCIe 4.0 x20
39.4GB/sBandwidth
PCIe
PCIe 4.0 x20
39.4GB/sBandwidth

iGPU
iGPU
Shaders
384
Shaders
768
Boost Clock
2.6GHz
Boost Clock
2.7GHz
··
3.99 TFLOPSFP16
··
8.29 TFLOPSFP16

NPU Model
Ryzen AI
NPU Model
Ryzen AI
Performance
10 TOPS
Performance
10 TOPS

Manufacturer
Manufacturer
ISA
x86-64
ISA
x86-64
Architecture
Architecture
Family
Family
Branding
Ryzen 5 2023 branding
Branding
Ryzen 7 2023 branding
Codename
Phoenix Point
Codename
Phoenix Point
Market Segment
Laptop
Market Segment
Laptop
Release Date
Jan 3, 2023
Release Date
Jan 3, 2023

Foundry
TSMC
Foundry
TSMC
Fabrication Node
N4
Fabrication Node
N4
Die Size
178mm²
Die Size
178mm²
Transistor Count
25 Billion
Transistor Count
25 Billion
Transistor Density
140 MTr/mm²
Transistor Density
140 MTr/mm²

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Laptops
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