Intel Core i7-1355U | AMD Phenom II X4 840 | |
CPU comparisonIntel Core i7-1355U or AMD Phenom II X4 840 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The Intel Core i7-1355U has 10 cores with 12 threads and clocks with a maximum frequency of 5.00 GHz. Up to 96 GB of memory is supported in 2 memory channels. The Intel Core i7-1355U was released in Q1/2023. The AMD Phenom II X4 840 has 4 cores with 4 threads and clocks with a maximum frequency of 3.20 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD Phenom II X4 840 was released in Q1/2011. |
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Intel Core i7 (298) | Family | AMD Phenom II (52) |
Intel Core i 1300P/1300U (29) | CPU group | AMD Phenom II - 840/850 (2) |
13 | Generation | 5 |
Raptor Lake U | Architecture | Propus |
Mobile | Segment | Desktop / Server |
Intel Core i7-1255U | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i7-1355U is a 10 core processor with a clock frequency of 1.70 GHz (5.00 GHz). The AMD Phenom II X4 840 has 4 CPU cores with a clock frequency of 3.20 GHz. |
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Intel Core i7-1355U | Characteristic | AMD Phenom II X4 840 |
10 | Cores | 4 |
12 | Threads | 4 |
hybrid (big.LITTLE) | Core architecture | normal |
Yes | Hyperthreading | No |
No | Overclocking ? | Yes |
1.70 GHz (5.00 GHz) 2x Raptor Cove |
A-Core | 3.20 GHz |
1.20 GHz (3.70 GHz) 8x Gracemont |
B-Core | -- |
Internal GraphicsThe integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs. |
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Intel Iris Xe Graphics 96 (Alder Lake) | GPU | no iGPU |
0.35 GHz | GPU frequency | -- |
1.30 GHz | GPU (Turbo) | -- |
13 | GPU Generation | -- |
10 nm | Technology | |
4 | Max. displays | |
96 | Compute units | -- |
768 | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
32 GB | Max. GPU Memory | -- |
12.1 | DirectX Version | -- |
Hardware codec supportA photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos. |
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Intel Iris Xe Graphics 96 (Alder Lake) | GPU | no iGPU |
Decode / Encode | Codec h265 / HEVC (8 bit) | No |
Decode / Encode | Codec h265 / HEVC (10 bit) | No |
Decode / Encode | Codec h264 | No |
Decode / Encode | Codec VP9 | No |
Decode | Codec VP8 | No |
Decode | Codec AV1 | No |
Decode / Encode | Codec AVC | No |
Decode | Codec VC-1 | No |
Decode / Encode | Codec JPEG | No |
Memory & PCIeThe Intel Core i7-1355U supports a maximum of 96 GB of memory in 2 memory channels. The AMD Phenom II X4 840 can connect up to GB of memory in 2 memory channels. |
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Intel Core i7-1355U | Characteristic | AMD Phenom II X4 840 |
LPDDR5-6400, LPDDR4X-4266, DDR5-5200, DDR4-3200 | Memory | DDR3-1333, DDR2-1066 |
96 GB | Max. Memory | |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
102.4 GB/s | Max. Bandwidth | 21.3 GB/s |
No | ECC | No |
-- | L2 Cache | -- |
12.00 MB | L3 Cache | 2.00 MB |
4.0 | PCIe version | -- |
20 | PCIe lanes | -- |
39.4 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i7-1355U has a TDP of 15 W, that of the AMD Phenom II X4 840 is 95 W. |
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Intel Core i7-1355U | Characteristic | AMD Phenom II X4 840 |
15 W | TDP (PL1 / PBP) | 95 W |
55 W | TDP (PL2) | -- |
-- | TDP up | -- |
12 W | TDP down | -- |
100 °C | Tjunction max. | -- |
Technical detailsThe Intel Core i7-1355U has a 12.00 MB cache, while the AMD Phenom II X4 840 cache has a total of 2.00 MB. |
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Intel Core i7-1355U | Characteristic | AMD Phenom II X4 840 |
10 nm | Technology | 45 nm |
Monolithic | Chip design | Unknown |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2, AVX2 | ISA extensions | SSE3, SSE4a |
BGA 1744 | Socket | AM3 |
VT-x, VT-x EPT, VT-d | Virtualization | AMD-V |
Yes | AES-NI | No |
Windows 10, Windows 11, Linux | Operating systems | Windows 10, Linux |
Q1/2023 | Release date | Q1/2011 |
-- | Release price | -- |
show more data | show more data | |
Intel Core i7-1355U
10C 12T @ 5.00 GHz |
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AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
Intel Core i7-1355U
10C 12T @ 1.70 GHz |
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AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
Intel Core i7-1355U
10C 12T @ 1.70 GHz |
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AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
Intel Core i7-1355U
10C 12T @ 5.00 GHz |
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AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
Intel Core i7-1355U
10C 12T @ 5.00 GHz |
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AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
Intel Core i7-1355U
10C 12T @ 5.00 GHz |
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AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
Intel Core i7-1355U
10C 12T @ 1.70 GHz |
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AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
Intel Core i7-1355U
10C 12T @ 5.00 GHz |
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AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
Intel Core i7-1355U
10C 12T @ 1.70 GHz |
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AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
Intel Core i7-1355U
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.30 GHz |
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AMD Phenom II X4 840
@ 0.00 GHz |
Intel Core i7-1355U
10C 12T @ 5.00 GHz |
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AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
Intel Core i7-1355U
10C 12T @ 1.70 GHz |
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AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
Intel Core i7-1355U
9,687 CB R23 MC @ 52 W |
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AMD Phenom II X4 840
3.20 GHz |
Devices using this processor |
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Intel Core i7-1355U | AMD Phenom II X4 840 |
Unknown | Unknown |