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Page not found — Technical City
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Popular graphics cards comparisons
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Intel Core i7 7700 vs i5 8400:
performance comparison
VS
Intel Core i7 7700
Intel Core i5 8400
Which is better: 4-core Intel Core i7 7700 at 3. 6 GHz or i5 8400 with 6 cores at 2.8 GHz? To find out, read our comparison test of these 14nm desktop processors in popular benchmarks, games and heavy applications.
- Overview
- Differences
- Performance
- Features
- Comments
Overview
Overview and comparison of the main metrics from NanoReview
Single -flow performance
Rating in tests using one kernel
Core i7 7700
51
Core i5 8400
48
Multi -flow performance
Tests in benchmarks where all nuclei
Core I7 7700
22
Core i5 8400
23
Energy efficiency
Energy Effect CHIP
Core i7 7700
45
Core i5 8400
45
39
Core i5 8400
38
Key differences
What are the main differences between 8400 and 7700
Reasons to choose Intel Core i7 7700
- 5% higher Turbo Boost frequency (4.
2 GHz vs 4 GHz)
Reasons to choose Intel Core i5 8400
- Supports up to 128 GB DDR4-2666
- Has 2 physical cores more
- 5.84 GB/s (16%) higher maximum memory bandwidth
- Introduced 9 months later than rival
- Has 1 MB more L3 cache
Benchmark tests
Compare the results of processor tests in benchmarks
Cinebench R23 (single core)
Core i7 7700
+6%
1092
Core i5 8400
1031
Cinebench R23 (multi-core)
Core i7 7700
5440
95 i7
+8%
5861
Passmark CPU (single core)
Core i7 7700
+2%
2469
Core i5 8400
2413
Passmark CPU (multi-core)
Core i7 7700
8670
Core i5 8400
+7%
9299
Geekbench 5 (single core)
Core i7 7700
+6%
1099
Core i5 8400
1038
Geekbench 5 (multi-core)
Core i7 7700
4213
Core i5 5
+11%
4656
Add your Cinebench R23 results
Specifications
List of full specifications of the Intel Core i7 7700 and i5 8400
General information
Manufacturer | Intel | Intel |
Release date | January 3, 2017 | October 5, 2017 |
Type | Desktop | Desktop |
Instruction set architecture | x86-64 | x86-64 |
Codename | Kaby Lake | Coffee Lake |
Model number | i7-7700 | i5-8400 |
Integrated graphics | HD Graphics 630 | UHD Graphics 630 |
Processor
Cores | 4 | 6 |
threads | 8 | 6 |
Frequency | 3.![]() |
2.8 GHz |
Max. frequency in Turbo Boost | 4.2 GHz | 4 GHz |
Number of cores | 4 | 6 |
Number of threads | 8 | 6 |
Bus frequency | 100 MHz | 100 MHz |
Multiplier | 36x | 28x |
Tire speed | 8 GT/s | 8 GT/s |
Level 1 cache | 64KB (per core) | 64KB (per core) |
Level 2 cache | 256KB (per core) | 256KB (per core) |
Level 3 cache | 8MB (shared) | 9MB (shared) |
Unlocked multiplier | No | No |
Process | 14 nanometers | 14 nanometers |
Socket | LGA-1151 | LGA-1151 |
Power consumption (TDP) | 65 W | 65 W |
Critical temperature | 100°C | 100°C |
Integrated graphics | Intel HD Graphics 630 | Intel UHD Graphics 630 |
GPU frequency | 350 MHz | 350 MHz |
Boost GPU frequency | 1150 MHz | 1050 MHz |
Shader blocks | 192 | 192 |
TMUs | 24 | 24 |
ROPs | 3 | 3 |
Computer units | 24 | 24 |
TGP | 15W | 15W |
Max.![]() |
4096×2304 — 60Hz | 4096×2304 — 60Hz |
iGPU FLOPS
Core i7 7700
0.44 teraflops
Core i5 8400
0.38 teraflops
Memory support
Memory type | DDR4-2400, DDR3L-1600 | DDR4-2666 |
Max. size | 64 GB | 128 GB |
Number of channels | 2 | 2 |
Max. bandwidth | 35.76 GB/s | 41.6 GB/s |
ECC support | No | No |
Other
Official site | Site Intel Core i7 7700 | Site Intel Core i5 8400 |
PCI Express Version | 3.0 | 3.0 |
Max. PCI Express lanes | 16 | 16 |
Extended instructions | SSE4.![]() |