Ryzen 5 8640U vs Ryzen 5 7645HX
Ryzen 5 8640U
Ryzen 5 7645HX
|
6 Cores
12 Threads
3.5GHz Clock
|
6 Cores
12 Threads
4GHz Clock
|
|
Socket
FP8
|
Socket
FL1
|
|
iGPU
Radeon 760M 2600MHz
|
iGPU
Radeon 610M 2200MHz
|
|
GB6S 2,265
60%
|
GB6S 2,680
71%
|
|
GB6M 9,800
41%
|
GB6M 11,780
49%
|
|
CB23S 1,780
76%
|
CB23S 1,810
77%
|
|
CB23M 11,290
27%
|
CB23M 13,985
34%
|
|
Manufacturer
AMD
|
Manufacturer
AMD
|
|
Architecture
Zen 4
|
Architecture
Zen 4
|
|
Family
Ryzen 8000
|
Family
Ryzen 7000
|
|
Instruction Set (ISA)
x86-64
|
Instruction Set (ISA)
x86-64
|
|
Codename
Hawk Point
-
-
-
-
-
-
-
-
|
Codename
Dragon Range
Durango
Dragon Range 1CCD
-
-
-
-
-
-
|
|
Market Segment
Laptop
|
Market Segment
Laptop
|
|
Release Date
12/6/2023
|
Release Date
1/4/2023
|
|
Foundry
TSMC
-
-
-
|
Foundry
TSMC
TSMC (IO Die)
-
-
|
|
Node
N4
-
-
-
|
Node
N5
N6 (IO Die)
-
-
|
|
Die Size
178 mm²
-
-
-
|
Die Size
71 mm²
122 mm² (IO Die)
-
-
|
|
Transistor Count
25 Billion
-
-
-
|
Transistor Count
6.6 Billion
3.4 Billion (IO Die)
-
-
|
|
6 Cores
-
-
-
|
6 Cores
-
-
-
|
|
12 Threads
-
-
-
|
12 Threads
-
-
-
|
|
-
3.5GHz
4.9GHz Boost
-
|
-
4GHz
5GHz Boost
-
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
Overclocking
Locked
-
-
-
|
Overclocking
Unlocked
-
-
-
|
|
Type
PCIe
|
Type
PCIe
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Transfer Rate
16GT/s
|
Transfer Rate
32GT/s
|
|
-
-
|
-
-
|
|
Lanes
4
|
Lanes
4
|
|
Bandwidth
8GB/s
|
Bandwidth
16GB/s
|
|
Bi-directional
16GB/s
|
Bi-directional
32GB/s
|
|
L0 Instruction
-
-
|
L0 Instruction
-
-
|
|
L0 Data
-
-
|
L0 Data
-
-
|
|
L1 Instruction
32KB/Core
8-way set associative
-
-
-
-
|
L1 Instruction
32KB/Core
8-way set associative
-
-
-
-
|
|
L1 Data
32KB/Core
8-way set associative
-
-
-
-
|
L1 Data
32KB/Core
8-way set associative
-
-
-
-
|
|
L2
1024KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
|
L2
1024KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
|
|
L3
-
16MB Shared
-
16-way set associative
-
-
-
-
-
|
L3
-
32MB Shared
-
16-way set associative
-
-
-
-
-
|
|
-
-
-
-
|
-
-
-
-
|
|
Channels
2
|
Channels
2
|
|
Max Memory
256GB
64GB
|
Max Memory
64GB
|
|
ECC
Not Supported
|
ECC
Not Supported
|
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
|
Clock
3750MHz
2800MHz
Transfer Rate
7500MT/s
5600MT/s
|
Clock
2600MHz
Transfer Rate
5200MT/s
|
|
Bandwidth/Channel
60.0GB/s
44.8GB/s
Bandwidth
120.0GB/s
89.6GB/s
|
Bandwidth/Channel
41.6GB/s
Bandwidth
83.2GB/s
|
|
TDP
28W
15W cTDP Down
30W cTDP Up
-
|
TDP
55W
45W cTDP Down
75W cTDP Up
-
|
|
Temp
100°C Max
-
|
Temp
100°C Max
-
|
|
Included Cooler
Not Included
|
Included Cooler
Not Included
|
|
PCIe 4.0 x20 Lanes
|
PCIe 5.0 x28 Lanes
|
|
Radeon 760M 2600MHz
384 Shaders
2600MHz
|
Radeon 610M 2200MHz
128 Shaders
2200MHz
|
|
XDNA
|
No NPU
-
|
|
-
-
|
-
-
|
|
16 TOPS
INT4
|
-
-
|
|
-
-
|
-
-
|
|
No Cellular
|
No Cellular
|
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