AMD Ryzen 7 7840U vs AMD Ryzen 7 7745HX

AMD Ryzen 7 7840U
AMD Ryzen 7 7745HX
8 Cores
16 Threads
3.3GHz Clock
8 Cores
16 Threads
3.6GHz Clock
Socket
FP8
Socket
FL1
iGPU
Radeon 780M 2700MHz
4.15 TFLOPS FP32
iGPU
Radeon 610M 2200MHz
560 GFLOPS FP32

GB6 Single-Core

  • 15% slower vs Ryzen 7 7745HX
  • 18% faster vs Ryzen 7 7840U
Ryzen 7 7840U - GB6S 2,260
x1
Ryzen 7 7745HX - GB6S 2,660
x1.18

GB6 Multi-Core

  • 20% slower vs Ryzen 7 7745HX
  • 25% faster vs Ryzen 7 7840U
Ryzen 7 7840U - GB6M 10,385
x1
Ryzen 7 7745HX - GB6M 13,020
x1.25

CB23 Single-Core

  • 5% slower vs Ryzen 7 7745HX
  • 5% faster vs Ryzen 7 7840U
Ryzen 7 7840U - CB23S 1,755
x1
Ryzen 7 7745HX - CB23S 1,845
x1.05

CB23 Multi-Core

  • 29% slower vs Ryzen 7 7745HX
  • 40% faster vs Ryzen 7 7840U
Ryzen 7 7840U - CB23M 12,885
x1
Ryzen 7 7745HX - CB23M 18,060
x1.4
  • 44% faster vs Ryzen 7 7745HX
  • 31% slower vs Ryzen 7 7840U
Ryzen 7 7840U - 120.0GB/s
x1.44
Ryzen 7 7745HX - 83.2GB/s
x1
  • 49% lower vs Ryzen 7 7745HX
  • 96% higher vs Ryzen 7 7840U
Ryzen 7 7840U - 28W
x1
Ryzen 7 7745HX - 55W
x1.96
  • 7.41x faster vs Ryzen 7 7745HX
  • 87% slower vs Ryzen 7 7840U
Ryzen 7 7840U - 4.15 TFLOPS FP32
x7.41
Ryzen 7 7745HX - 560 GFLOPS FP32
x1
CB23S 1,755
67%
CB23S 1,845
71%
CB23M 12,885
30%
CB23M 18,060
42%
Manufacturer
AMD
Manufacturer
AMD
Architecture
Zen 4
Architecture
Zen 4
Family
Ryzen 7000
Family
Ryzen 7000
Instruction Set (ISA)
x86-64
Instruction Set (ISA)
x86-64
Codename
Phoenix Point
-
-
Codename
Dragon Range
Durango
Dragon Range 1CCD
Market Segment
Laptop
Market Segment
Laptop
Release Date
5/3/2023
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)
8 Cores
8 Cores
16 Threads
16 Threads
3.3GHz
5.1GHz Boost
3.6GHz
5.1GHz 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
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
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
Transfer Rate
7500MT/s
Clock
2600MHz
Transfer Rate
5200MT/s
Bandwidth/Channel
60.0GB/s
Bandwidth
120.0GB/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
PCIe 4.0 x20 Lanes
PCIe 5.0 x28 Lanes
Radeon 780M 2700MHz
768 Shaders
2700MHz
4.15 TFLOPS FP32
Radeon 610M 2200MHz
128 Shaders
2200MHz
560 GFLOPS FP32
Ryzen AI
No NPU
-
10 TOPS
-
No Cellular
No Cellular
Change Comparison