Intel Core i7 8750H vs i5 8400: performance comparison
VS
Intel Core i7 8750H
Intel Core i5 8400
We compared two 6-core CPUs: the 2.2 GHz Intel Core i7 8750H (laptop) against the 2.8 GHz i5 8400 (desktop). On this page, you’ll find out which processor has better performance in benchmarks, games and other useful information.
- Review
- Differences
- Performance
- Specs
- Comments
Review
General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Core i7 8750H
51
Core i5 8400
47
Performance
Measure performance when all cores are involved
Core i7 8750H
26
Core i5 8400
23
Power Efficiency
The efficiency score of electricity consumption
Core i7 8750H
47
Core i5 8400
45
NanoReview Final Score
Generic CPU rating
Core i7 8750H
40
Core i5 8400
37
Key Differences
What are the key differences between 8400 and 8750H
Advantages of Intel Core i7 8750H
- Newer — released 6-months later
- 10% faster in a single-core Geekbench v5 test — 1141 vs 1034 points
- 2% higher Turbo Boost frequency (4.
1 GHz vs 4 GHz)
Advantages of Intel Core i5 8400
- Supports up to 128 GB DDR4-2666 RAM
Benchmarks
Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Core i7 8750H
+7%
1089
Core i5 8400
1019
Cinebench R23 (Multi-Core)
Core i7 8750H
+9%
6305
Core i5 8400
5808
Passmark CPU (Single-Core)
Core i7 8750H
2296
Core i5 8400
+4%
2397
Passmark CPU (Multi-Core)
Core i7 8750H
+8%
9939
Core i5 8400
9199
Geekbench 5 (Single-Core)
Core i7 8750H
+10%
1134
Core i5 8400
1027
Geekbench 5 (Multi-Core)
Core i7 8750H
+20%
5518
Core i5 8400
4616
Submit your Cinebench R23 result
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This does not affect our assessment methodology.
Specifications
Full technical specification of Intel Core i7 8750H and i5 8400
General
| Vendor | Intel | Intel |
| Released | April 3, 2018 | October 5, 2017 |
| Type | Laptop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Coffee Lake | Coffee Lake |
| Model number | i7-8750H | i5-8400 |
| Integrated GPU | UHD Graphics 630 | UHD Graphics 630 |
| P-Cores | 6 | 6 |
| P-Threads | 12 | 6 |
| Base Frequency (P) | 2. 2 GHz |
2.8 GHz |
| Turbo Boost Frequency (P) | 4.1 GHz | 4 GHz |
| Total Cores | 6 | 6 |
| Total Threads | 12 | 6 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 22x | 28x |
| Bus Bandwidth | 8 GT/s | 8 GT/s |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 256K (per core) | 256K (per core) |
| L3 Cache | 9MB (shared) | 9MB (shared) |
| Unlocked Multiplier | No | No |
Package
| Fabrication process | 14 nm | 14 nm |
| Socket | BGA-1440 | LGA-1151 |
| TDP | 45 W | 65 W |
| Peak temperature | 100°C | 100°C |
| Integrated Graphics | Intel UHD Graphics 630 | Intel UHD Graphics 630 |
| GPU Base Clock | 350 MHz | 350 MHz |
| GPU Boost Clock | 1100 MHz | 1050 MHz |
| Shading Units | 192 | 192 |
| TMUs | 24 | 24 |
| ROPs | 3 | 3 |
| Execution Units | 24 | 24 |
| TGP | 15 W | 15 W |
Max. Resolution |
4096×2304 — 60 Hz | 4096×2304 — 60 Hz |
iGPU FLOPS
Core i7 8750H
0.38 TFLOPS
Core i5 8400
0.38 TFLOPS
Memory Support
| Memory types | DDR4-2666, LPDDR3-2133 | DDR4-2666 |
| Memory Size | 64 GB | 128 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 41.8 GB/s | 41.6 GB/s |
| ECC Support | No | No |
| Official site | Intel Core i7 8750H official page | Intel Core i5 8400 official page |
| PCI Express Version | 3.0 | 3.0 |
| PCI Express Lanes | 16 | 16 |
| Extended instructions | SSE4. 1, SSE4.2, AVX-2 |
SSE4.1, SSE4.2, AVX-2 |
Cast your vote
Choose between two processors
Core i7 8750H
10 (76.9%)
Core i5 8400
3 (23.1%)
Total votes: 13
ompetitors
1.
AMD Ryzen 5 5500U and Intel Core i7 8750H
2.
Apple M1 Pro and Intel Core i7 8750H
3.
Intel Core i7 12700H and i7 8750H
4.
Intel Core i7 11800H and i7 8750H
5.
Apple M1 and Intel Core i7 8750H
6.
Intel Core i5 12600K and i5 8400
7.
Intel Core i5 12400 and i5 8400
8.
Intel Core i5 12400F and i5 8400
Compare other CPUs (480+)
So which CPU will you choose: Intel Core i5 8400 or i7 8750H?
Name
Message
Intel Core i5+8400 vs Intel Core i7-8750H: What is the difference?
52points
Intel Core i5+8400
56points
Intel Core i7-8750H
Comparison winner
vs
66 facts in comparison
Intel Core i5+8400
Intel Core i7-8750H
Why is Intel Core i5+8400 better than Intel Core i7-8750H?
- 27.
27% faster CPU speed?
6 x 2.8GHzvs6 x 2.2GHz - 15.26% higher PassMark result?
11685vs10138 - 6 higher clock multiplier?
28vs22
Why is Intel Core i7-8750H better than Intel Core i5+8400?
- 6 more CPU threads?
12vs6 - 20W lower TDP?
45Wvs65W
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Price comparison
User reviews
Overall Rating
Intel Core i5+8400
3 User reviews
Intel Core i5+8400
8.
3/10
3 User reviews
Intel Core i7-8750H
1 User reviews
Intel Core i7-8750H
9.0/10
1 User reviews
Features
Value for money
9.3/10
3 votes
10.0/10
1 votes
Gaming
7.7/10
3 votes
9.0/10
1 votes
Performance
8.7/10
3 votes
10.0/10
1 votes
Reliability
9.0/10
3 votes
10.0/10
1 votes
Energy efficiency
9.0/10
3 votes
9.0/10
1 votes
Performance
CPU speed
6 x 2.8GHz
6 x 2.2GHz
The CPU speed indicates how many processing cycles per second can be executed by a CPU, considering all of its cores (processing units). It is calculated by adding the clock rates of each core or, in the case of multi-core processors employing different microarchitectures, of each group of cores.
CPU threads
More threads result in faster performance and better multitasking.
turbo clock speed
4.1GHz
When the CPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
Has an unlocked multiplier
✖Intel Core i5+8400
✖Intel Core i7-8750H
Some processors come with an unlocked multiplier which makes them easy to overclock, allowing you to gain increased performance in games and other apps.
L2 cache
A larger L2 cache results in faster CPU and system-wide performance.
L3 cache
A larger L3 cache results in faster CPU and system-wide performance.
L1 cache
A larger L1 cache results in faster CPU and system-wide performance.
L2 core
0.
25MB/core
0.25MB/core
More data can be stored in the L2 cache for access by each core of the CPU.
L3 core
1.5MB/core
1.5MB/core
More data can be stored in the L3 cache for access by each core of the CPU.
Benchmarks
PassMark result
This benchmark measures the performance of the CPU using multiple threads.
PassMark result (single)
This benchmark measures the performance of the CPU using a single thread.
Geekbench 5 result (multi)
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Geekbench 5 is a cross-platform benchmark that measures a processor’s multi-core performance. (Source: Primate Labs, 2023)
Cinebench R20 (multi) result
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Cinebench R20 is a benchmark tool that measures a CPU’s multi-core performance by rendering a 3D scene.
Cinebench R20 (single) result
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Cinebench R20 is a benchmark tool that measures a CPU’s single-core performance by rendering a 3D scene.
Geekbench 5 result (single)
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Geekbench 5 is a cross-platform benchmark that measures a processor’s single-core performance. (Source: Primate Labs, 2023)
Blender (bmw27) result
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
372.54seconds
The Blender (bmw27) benchmark measures the performance of a processor by rendering a 3D scene. More powerful processors can render the scene in less time.
Blender (classroom) result
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
1175.04seconds
The Blender (classroom) benchmark measures the performance of a processor by rendering a 3D scene.
More powerful processors can render the scene in less time.
performance per watt
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8750H)
This means the CPU is more efficient, giving a greater amount of performance for each watt of power used.
Integrated graphics
GPU clock speed
350MHz
350MHz
The graphics processing unit (GPU) has a higher clock speed.
GPU turbo
1050MHz
1100MHz
When the GPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
GPU execution units
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8750H)
A graphics processing unit (GPU) with a greater number of execution units can deliver better graphics.
supported displays
Using multiple displays you can create a larger workspace, making it easier to work across multiple apps.
DirectX version
DirectX is used in games, with newer versions supporting better graphics.
OpenGL version
OpenGL is used in games, with newer versions supporting better graphics.
OpenCL version
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8750H)
Some apps use OpenCL to apply the power of the graphics processing unit (GPU) for non-graphical computing. Newer versions introduce more functionality and better performance.
texture mapping units (TMUs)
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8750H)
TMUs take textures and map them to the geometry of a 3D scene.
More TMUs will typically mean that texture information is processed faster.
render output units (ROPs)
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8750H)
The ROPs are responsible for some of the final steps of the rendering process, writing the final pixel data to memory and carrying out other tasks such as anti-aliasing to improve the look of graphics.
Memory
RAM speed
2666MHz
2666MHz
It can support faster memory, which will give quicker system performance.
maximum memory bandwidth
41.6GB/s
41.8GB/s
This is the maximum rate that data can be read from or stored into memory.
DDR memory version
DDR (Double Data Rate) memory is the most common type of RAM. Newer versions of DDR memory support higher maximum speeds and are more energy-efficient.
memory channels
More memory channels increases the speed of data transfer between the memory and the CPU.
maximum memory amount
The maximum amount of memory (RAM) supported.
bus transfer rate
The bus is responsible for transferring data between different components of a computer or device.
Supports ECC memory
✖Intel Core i5+8400
✖Intel Core i7-8750H
Error-correcting code memory can detect and correct data corruption. It is used when is it essential to avoid corruption, such as scientific computing or when running a server.
eMMC version
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8750H)
A higher version of eMMC allows faster memory interfaces, having a positive effect on the performance of a device.
For example, when transferring files from your computer to the internal storage over USB.
bus speed
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8750H)
The bus is responsible for transferring data between different components of a computer or device.
Features
uses multithreading
✔Intel Core i5+8400
✔Intel Core i7-8750H
Multithreading technology (such as Intel’s Hyperthreading or AMD’s Simultaneous Multithreading) provides increased performance by splitting each of the processor’s physical cores into virtual cores, also known as threads. This way, each core can run two instruction streams at once.
Has AES
✔Intel Core i5+8400
✔Intel Core i7-8750H
AES is used to speed up encryption and decryption.
Has AVX
✔Intel Core i5+8400
✔Intel Core i7-8750H
AVX is used to help speed up calculations in multimedia, scientific and financial apps, as well as improving Linux RAID software performance.
SSE version
SSE is used to speed up multimedia tasks such as editing an image or adjusting audio volume. Each new version contains new instructions and improvements.
Has F16C
✔Intel Core i5+8400
✔Intel Core i7-8750H
F16C is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.
bits executed at a time
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8750H)
NEON provides acceleration for media processing, such as listening to MP3s.
Has MMX
✔Intel Core i5+8400
✔Intel Core i7-8750H
MMX is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.
Has TrustZone
✖Intel Core i5+8400
✖Intel Core i7-8750H
A technology integrated into the processor to secure the device for use with features such as mobile payments and streaming video using digital rights management (DRM).