Intel Core i7 8700 vs i5 8400: performance comparison
VS
Intel Core i7 8700
Intel Core i5 8400
We compared two 6-core desktop CPUs: the 3.2 GHz Intel Core i7 8700 against the 2.8 GHz i5 8400. 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 8700
56
Core i5 8400
48
Performance
Measure performance when all cores are involved
Core i7 8700
30
Core i5 8400
23
Power Efficiency
The efficiency score of electricity consumption
Core i7 8700
44
Core i5 8400
44
NanoReview Final Score
Generic CPU rating
Core i7 8700
43
Core i5 8400
38
Key Differences
What are the key differences between 8400 and 8700
Advantages of Intel Core i7 8700
- Has 3 MB larger L3 cache size
- 15% higher Turbo Boost frequency (4.
6 GHz vs 4 GHz)
- 13% faster in a single-core Geekbench v5 test — 1172 vs 1034 points
Benchmarks
Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Core i7 8700
+19%
1233
Core i5 8400
1035
Cinebench R23 (Multi-Core)
Core i7 8700
+22%
7169
Core i5 8400
5900
Passmark CPU (Single-Core)
Core i7 8700
+10%
2666
Core i5 8400
2415
Passmark CPU (Multi-Core)
Core i7 8700
+40%
12999
Core i5 8400
9292
Geekbench 5 (Single-Core)
Core i7 8700
+13%
1182
Core i5 8400
1042
Geekbench 5 (Multi-Core)
Core i7 8700
+33%
6226
Core i5 8400
4665
▶️ Submit your Cinebench R23 result
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Specifications
Full technical specification of Intel Core i7 8700 and i5 8400
General
| Vendor | Intel | Intel |
| Released | October 5, 2017 | October 5, 2017 |
| Type | Desktop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Coffee Lake | Coffee Lake |
| Model number | i7-8700 | i5-8400 |
| Socket | LGA-1151 | LGA-1151 |
| Integrated GPU | UHD Graphics 630 | UHD Graphics 630 |
Performance
| Cores | 6 | 6 |
| Threads | 12 | 6 |
| Base Frequency | 3. 2 GHz |
2.8 GHz |
| Turbo Boost Frequency | 4.6 GHz | 4 GHz |
| Bus frequency | 100 MHz | 100 MHz |
| Multiplier | 32x | 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 | 12MB (shared) | 9MB (shared) |
| Unlocked Multiplier | No | No |
| Fabrication process | 14 nm | 14 nm |
| TDP | 65 W | 65 W |
| Max. 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 | 1200 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 8700
0.38 TFLOPS
Core i5 8400
0.38 TFLOPS
Memory support
| Memory types | DDR4-2666 | DDR4-2666 |
| Memory Size | 128 GB | 128 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 41.6 GB/s | 41.6 GB/s |
| ECC Support | No | No |
| Official site | Intel Core i7 8700 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 8700
15 (71.4%)
Core i5 8400
6 (28.6%)
Total votes: 21
ompetitors
1.
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2.
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3.
Intel Core i5 12400F and Intel Core i7 8700
4.
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7.
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8.
Intel Core i5 12400 and Intel Core i5 8400
9.
Intel Core i5 12400F and Intel Core i5 8400
So which CPU will you choose: Intel Core i5 8400 or i7 8700?
Name
Message
Core i5-8400 vs Core i7-8700
Availability
Intel Core i5-8400 Desktop Processor 6 Cores up to 4.
0 GHz LGA 1151 300 Series 65W
Buy on Amazon
$195
In Stock
Updated 64 minutes ago
Availability
Intel Core i7-8700 Desktop Processor 6 Cores up to 4.6 GHz LGA 1151 300 Series 65W
Buy on Amazon
$330
In Stock
Updated 64 minutes ago
Key Differences
In short — Core i7-8700 outperforms the cheaper Core i5-8400 on the selected game parameters. However, the worse performing Core i5-8400 is a better bang for your buck. The better performing Core i7-8700 is 88 days newer than the cheaper Core i5-8400.
Advantages of Intel Core i5-8400
- Up to 41% cheaper than Core i7-8700 — $195.0 vs $330.0
- Up to 37% better value when playing Grand Theft Auto V than Core i7-8700 — $0.79 vs $1.26 per FPS
Advantages of Intel Core i7-8700
- Performs up to 5% better in Grand Theft Auto V than Core i5-8400 — 261 vs 248 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400 — 12 vs 6 threads
Grand Theft Auto V
Resolution
1920×1080
Game Graphics
High
Core i5-8400
Desktop • Oct 5th, 2017
FPS
248
95%
Value, $/FPS
$0.
79/FPS
100%
Price, $
$195
100%
Value Winner
Intel Core i5-8400 Desktop Processor 6 Cores up to 4.0 GHz LGA 1151 300 Series 65W
Buy for $195 on Amazon
In Stock
Updated 64 minutes ago
Core i7-8700
Desktop • Jan 1st, 2018
FPS
261
100%
Value, $/FPS
$1.26/FPS
63%
Price, $
$330
59%
FPS Winner
Intel Core i7-8700 Desktop Processor 6 Cores up to 4.6 GHz LGA 1151 300 Series 65W
Buy for $330 on Amazon
In Stock
Updated 64 minutes ago
TOP 5 Games
Resolution
1920×1080
Game Graphics
High
Core i5-8400
Desktop • Oct 5th, 2017
Core i7-8700
Desktop • Jan 1st, 2018
248
FPS
261
FPS
Grand Theft Auto V
994
FPS
1045
FPS
League of Legends
267
FPS
282
FPS
Fortnite
608
FPS
641
FPS
Counter-Strike: Global Offensive
432
FPS
456
FPS
VALORANT
Geekbench 5 Benchmarks
Core i5-8400
Desktop • Oct 5th, 2017
Single-Core
1031
89%
Multi-Core
4492
78%
Core i7-8700
Desktop • Jan 1st, 2018
Single-Core
1152
100%
Multi-Core
5783
100%
|
Intel Core i5-8400 |
vs |
Intel Core i7-8700 |
|---|---|---|
| Oct 5th, 2017 | Release Date |
Jan 1st, 2018 |
| Core i5 | Collection | Core i7 |
| Coffee Lake | Codename | Coffee Lake |
| Intel Socket 1151 | Socket | Intel Socket 1151 |
|
Desktop |
Segment |
Desktop |
| 6 | Cores | 6 |
| 6 | Threads |
12 |
2. 8 GHz |
Base Clock Speed |
3.2 GHz |
| 4.0 GHz | Turbo Clock Speed |
4.6 GHz |
| 65 W | TDP | 65 W |
| 14 nm | Process Size | 14 nm |
| 28.0x | Multiplier |
32.0x |
| None | Integrated Graphics | None |
| No | Overclockable | No |
Builds Using Core i5-8400 or Core i7-8700
Grand Theft Auto V, 1080p, High
ROG Strix GL10CS Gaming Desktop PC
81
FPS
$
17.27
/FPS
GeForce GTX 1050
Core i7-8700
8 GB, N/A Storage
Buy on Amazon
$1,399
In Stock
Updated 61 minutes ago
iBUYPOWER Elite Gaming PC
125
FPS
$
19.