AMD Ryzen 7 7800X3D vs Intel Core i7-1355U

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CPU comparison with benchmarks


AMD Ryzen 7 7800X3D CPU1 vs CPU2 Intel Core i7-1355U
AMD Ryzen 7 7800X3D Intel Core i7-1355U

CPU comparison

AMD Ryzen 7 7800X3D or Intel Core i7-1355U - 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 AMD Ryzen 7 7800X3D has 8 cores with 16 threads and clocks with a maximum frequency of 5.00 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 7 7800X3D was released in Q1/2023.

The Intel Core i7-1355U has 10 cores with 12 threads and clocks with a maximum frequency of 5.00 GHz. The CPU supports up to 96 GB of memory in 2 memory channels. The Intel Core i7-1355U was released in Q1/2023.
AMD Ryzen 7 (67) Family Intel Core i7 (298)
AMD Ryzen 7000 (14) CPU group Intel Core i 1300P/1300U (29)
6 Generation 13
Raphael (Zen 4) Architecture Raptor Lake U
Desktop / Server Segment Mobile
AMD Ryzen 7 5800X3D Predecessor Intel Core i7-1255U
-- Successor --

CPU Cores and Base Frequency

The AMD Ryzen 7 7800X3D is a 8 core processor with a clock frequency of 4.20 GHz (5.00 GHz). The Intel Core i7-1355U has 10 CPU cores with a clock frequency of 1.70 GHz (5.00 GHz).

AMD Ryzen 7 7800X3D Characteristic Intel Core i7-1355U
8 Cores 10
16 Threads 12
normal Core architecture hybrid (big.LITTLE)
Yes Hyperthreading Yes
No Overclocking ? No
4.20 GHz (5.00 GHz)
8x Zen 4
A-Core 1.70 GHz (5.00 GHz)
2x Raptor Cove
-- B-Core 1.20 GHz (3.70 GHz)
8x Gracemont

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

AMD Ryzen 7 7800X3D Characteristic Intel Core i7-1355U
-- AI hardware --
-- AI specifications --

Internal Graphics

The 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.

AMD Radeon Graphics (Raphael) GPU Intel Iris Xe Graphics 96 (Alder Lake)
0.40 GHz GPU frequency 0.35 GHz
2.20 GHz GPU (Turbo) 1.30 GHz
9 GPU Generation 13
5 nm Technology 10 nm
3 Max. displays 4
2 Compute units 96
128 Shader 768
No Hardware Raytracing No
No Frame Generation No
8 GB Max. GPU Memory 32 GB
12 DirectX Version 12.1

Hardware codec support

A 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.

AMD Radeon Graphics (Raphael) GPU Intel Iris Xe Graphics 96 (Alder Lake)
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 Decode / Encode
Decode / Encode Codec VP8 Decode
Decode Codec AV1 Decode
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The AMD Ryzen 7 7800X3D supports a maximum of 128 GB of memory in 2 memory channels. The Intel Core i7-1355U can connect up to 96 GB of memory in 2 memory channels.

AMD Ryzen 7 7800X3D Characteristic Intel Core i7-1355U
DDR5-5200 Memory LPDDR5-6400, LPDDR4X-4266, DDR5-5200, DDR4-3200
128 GB Max. Memory 96 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
83.2 GB/s Max. Bandwidth 102.4 GB/s
Yes ECC No
8.00 MB L2 Cache --
96.00 MB L3 Cache 12.00 MB
5.0 PCIe version 4.0
24 PCIe lanes 20
94.5 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 7 7800X3D has a TDP of 120 W, that of the Intel Core i7-1355U is 15 W.

AMD Ryzen 7 7800X3D Characteristic Intel Core i7-1355U
120 W TDP (PL1 / PBP) 15 W
162 W TDP (PL2) 55 W
-- TDP up --
-- TDP down 12 W
89 °C Tjunction max. 100 °C

Technical details

The AMD Ryzen 7 7800X3D has a 104.00 MB cache, while the Intel Core i7-1355U cache has a total of 12.00 MB.

AMD Ryzen 7 7800X3D Characteristic Intel Core i7-1355U
5 nm Technology 10 nm
Chiplet Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 ISA extensions SSE4.1, SSE4.2, AVX2
AM5 (LGA 1718) Socket BGA 1744
AMD-V, SVM Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2023 Release date Q1/2023
-- Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 7 7800X3D to help other visitors make their purchasing decisions. The average rating is 4.2 stars (55 ratings). Rate now:
Here you can rate the Intel Core i7-1355U to help other visitors make their purchasing decisions. The average rating is 3.9 stars (22 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 4 CPU benchmarks
AMD Ryzen 7 7800X3D (100%)
Intel Core i7-1355U (89%)
⌀ Multi core performance in 5 CPU benchmarks
AMD Ryzen 7 7800X3D (100%)
Intel Core i7-1355U (46%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
AMD Ryzen 7 7800X3D AMD Ryzen 7 7800X3D
8C 16T @ 5.00 GHz
107 (100%)
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 5.00 GHz
91 (85%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
AMD Ryzen 7 7800X3D AMD Ryzen 7 7800X3D
8C 16T @ 5.00 GHz
1115 (100%)
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 5.00 GHz
287 (26%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 7 7800X3D AMD Ryzen 7 7800X3D
8C 16T @ 5.00 GHz
1811 (100%)
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 5.00 GHz
1819 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 7 7800X3D AMD Ryzen 7 7800X3D
8C 16T @ 4.60 GHz
17762 (100%)
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 1.70 GHz
9687 (55%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 7 7800X3D AMD Ryzen 7 7800X3D
8C 16T @ 5.00 GHz
2137 (100%)
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 5.00 GHz
1703 (80%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 7 7800X3D AMD Ryzen 7 7800X3D
8C 16T @ 4.60 GHz
13620 (100%)
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 1.70 GHz
7451 (55%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
AMD Ryzen 7 7800X3D AMD Ryzen 7 7800X3D
8C 16T @ 5.00 GHz
2731 (100%)
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 5.00 GHz
2458 (90%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
AMD Ryzen 7 7800X3D AMD Ryzen 7 7800X3D
8C 16T @ 4.60 GHz
14229 (100%)
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 1.70 GHz
7122 (50%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
AMD Ryzen 7 7800X3D AMD Ryzen 7 7800X3D
AMD Radeon Graphics (Raphael) @ 2.20 GHz
563 (28%)
Intel Core i7-1355U Intel Core i7-1355U
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.30 GHz
1993 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD Ryzen 7 7800X3D AMD Ryzen 7 7800X3D
8C 16T @ 4.60 GHz
35060 (100%)
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 1.70 GHz
15630 (45%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
AMD Ryzen 7 7800X3D AMD Ryzen 7 7800X3D
17,762 CB R23 MC @ 87 W
205 (100%)
Intel Core i7-1355U Intel Core i7-1355U
9,687 CB R23 MC @ 52 W
187 (91%)

Devices using this processor

AMD Ryzen 7 7800X3D Intel Core i7-1355U
Unknown Unknown

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