CPU Comparison
Intel Core i5-7600 vs Intel Core i5-8400
A side-by-side comparison of specs, performance and value. The Intel Core i5-7600 is a high-end mainstream desktop processor launched in early 2017 as part of the 7th Generation Kaby Lake lineup. Positioned just below the unlocked K-series, it features four physical cores without Hyper-Threading, operating at a base frequency of 3.5 GHz with a maximum turbo boost of 4.1 GHz. This represents the highest clock speeds available on a locked 7th Gen i5 processor. Manufactured on Intel's 14nm process, it maintains a 65-watt TDP, making it easy to cool with standard solutions. The processor integrates Intel HD 630 graphics, providing hardware-accelerated 4K media decoding, and supports dual-channel DDR4 memory at 2400 MT/s. While its high clock speeds deliver excellent single-thread performance for gaming and daily applications, the absence of Hyper-Threading limits its multi-threaded throughput. Utilizing the LGA 1151 socket, the i5-7600 was aimed at users seeking top-tier locked performance, though it was quickly overshadowed by the 6-core 8th Gen processors that followed.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Very snappy for daily tasks, but 4 threads limit heavy multitasking.
Handles office tasks and moderate programming workloads efficiently.
Gaming
Good for older games due to high clocks, but bottlenecks modern GPUs in CPU-heavy titles.
Capable of smooth 1080p gaming when paired with a mid-range discrete GPU.
Virtualization
Limited by core count for running multiple VMs.
Good for basic VMs, but 6 threads limit heavy parallel virtualization.
Efficiency
65W TDP offers a good balance of power and heat.
Balanced performance within a standard 65W power envelope.
Specialized Performance
AI / ML
- No AI acceleration hardware
- Inadequate for local AI inference
- No AI-specific hardware
- CPU inference is slow due to lack of threads
Content Creation
Gaming
- High single-core clocks help older games
- 4 threads cause stuttering in modern AAA titles
- Requires a discrete GPU for any real gaming
- Excellent for budget gaming builds
- Handles eSports titles flawlessly
- May bottleneck high-end modern GPUs at 1080p
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- High single-thread performance
- 4.1 GHz max turbo boost
- 65W TDP is easy to cool
- Hardware 4K video decoding
- Good for legacy gaming
Cons
- Only 4 cores and 4 threads
- Locked multiplier
- Bottlenecks modern GPUs
- No official Windows 11 support
- Outdated PCIe Gen 3
Pros
- Disruptive price-to-performance ratio
- 6 physical cores for modern gaming
- Includes integrated UHD Graphics 630
- Standard 65W TDP is easy to cool
- Wide compatibility with 300-series motherboards
Cons
- No Hyper-Threading (only 6 threads)
- Locked multiplier prevents overclocking
- End-of-life platform (LGA 1151)
- Officially limited to DDR4-2666
- Not supported by Windows 11 officially
Competitors & Alternatives
Intel Core i5-7600
- AMD Ryzen 5 1500XRival
Desktop
- Compare head-to-headIntel Core i5-7500Rival
Desktop
- AMD Ryzen 5 1600Rival
Desktop
- Intel Core i7-7700Rival
Desktop
- Intel Core i3-7350KRival
Desktop
Successor with 6 cores, offering much better modern performance for similar money.
Compare head-to-headThe unlocked version if you plan to overclock on an older board.
Compare head-to-headA cheap modern alternative with 6 cores and 12 threads.
Compare head-to-headA modern budget CPU that vastly outperforms it.
Compare head-to-head
Intel Core i5-8400
- AMD Ryzen 5 1600Rival
Mainstream Desktop
- Compare head-to-headIntel Core i5-7500Rival
Mainstream Desktop
- AMD Ryzen 5 2600Rival
Mainstream Desktop
- Intel Core i7-7700Rival
Mainstream Desktop
- AMD Ryzen 5 2400GRival
Mainstream Desktop
Slightly newer generation with marginally higher clocks.
Compare head-to-headNewer platform with 8 threads and similar gaming performance.
Compare head-to-headLow power alternative for SFF builds.
Compare head-to-head
Our Verdict on Each
Offers the best single-thread performance of the locked 7th Gen i5s, but the 4-core/4-thread limitation makes it a poor choice for modern multi-threaded workloads.
Best for: Upgrading an older LGA 1151 system where maximum single-thread speed is needed without overclocking.
Read the full reviewA legendary value CPU that forced the market to adopt 6 cores as the standard. Excellent for budget gaming, though lacking Hyper-Threading.
Best for: Upgrading an older LGA 1151 system on a budget, or building an office/HTPC machine.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i5-7600 or Intel Core i5-8400?
Based on our editorial ratings, the Intel Core i5-8400 comes out ahead with a score of 8.5/10. That said, the best choice depends on your workload — check the spec and performance breakdown above for gaming, productivity and efficiency differences.
Which is faster for gaming, Intel Core i5-7600 or Intel Core i5-8400?
For gaming, the Intel Core i5-8400 leads with a gaming performance score of 78/100 among Intel Core i5-7600 and Intel Core i5-8400.
Do Intel Core i5-7600 and Intel Core i5-8400 use the same socket?
Yes — all of these CPUs use the Intel Socket 1151 socket, so they share compatible motherboards.
Which has more cores?
The Intel Core i5-8400 has the most cores. Core counts: Intel Core i5-7600 (4 cores), Intel Core i5-8400 (6 cores).
Which is faster in multi-core benchmarks?
The Intel Core i5-7600 posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-7600 (6,000). Benchmark figures are approximate and workload-dependent.