CPU Comparison
Core i5-3450S vs Intel Core i5-3550
A side-by-side comparison of specs, performance and value. The Intel Core i5-3450S is a low-power desktop processor released in April 2012 as part of the Ivy Bridge lineup. Designed for small form factor PCs and AIOs, it features a 65W TDP, down from the standard 77W. It operates at a base frequency of 2.8 GHz and can boost up to 3.5 GHz, providing a good balance between power consumption and burst performance. The processor includes 4 cores and 4 threads, alongside 6MB of L3 cache. It supports dual-channel DDR3 memory and features Intel HD 2500 integrated graphics. While the HD 2500 is basic, it suffices for media playback and standard display tasks. The 'S' suffix ensures it runs cooler than standard chips, making it ideal for compact systems where fan noise and thermals are a concern. It was a popular OEM choice for office machines and HTPCs.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Handles office tasks well, but low base clock limits heavy multitasking.
Handles basic office apps, but struggles with heavy multitasking.
Gaming
HD 2500 graphics are too weak for gaming; requires a dedicated GPU for any 3D workloads.
Can run older games fine, but lacks single-thread speed for modern AAA titles.
Virtualization
Basic VMs are possible but limited by 4 threads.
Limited by 4 threads, but VT-x/VT-d support allows basic VM usage.
Efficiency
Highly efficient for its era, tailored for SFF systems.
Good efficiency for 2012, but outdated by modern 14nm/10nm standards.
Specialized Performance
AI / ML
- No AI acceleration
- Low compute capacity
- No AI hardware
- Unsuitable for modern AI workloads
Content Creation
Gaming
- HD 2500 is useless for modern gaming
- Low base clock limits CPU performance
- Suitable only for retro or 2D games
- Requires a dedicated GPU
- Single-core performance is too low for modern games
- PCIe 3.0 support is a plus for compatibility
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Low 65W TDP
- Good turbo boost frequency (3.5 GHz)
- Runs cool and quiet
- Reliable quad-core design
Cons
- Low base clock of 2.8 GHz
- Uses outdated DDR3 memory
- HD 2500 graphics are very weak
- Not supported by Windows 11
Pros
- True 4 physical cores
- Supports PCIe 3.0
- Low price on used market
- Good for legacy system repairs
Cons
- Obsolete 22nm process
- Locked multiplier
- Weak HD 2500 integrated graphics
- Uses DDR3 memory
Competitors & Alternatives
Core i5-3450S
- AMD A10-5700Rival
Desktop
- Intel Core i5-3335SRival
Desktop
- AMD A8-5600Rival
Desktop
- Intel Core i3-3225Rival
Desktop
- Compare head-to-headIntel Core i5-2500SRival
Desktop
Newer Haswell architecture with better performance and efficiency.
Compare head-to-head- AMD Ryzen 3 3200GEAlt
Modern low-power alternative with vastly superior integrated graphics.
- Intel Core i5-3450Alt
Higher base clock if power consumption is less of a concern.
- AMD Ryzen 5 3400GAlt
Excellent modern alternative for SFF builds with Vega graphics.
Intel Core i5-3550
- AMD FX-4300Rival
Desktop
- AMD FX-6100Rival
Desktop
- Compare head-to-headIntel Core i5-3570Rival
Desktop
- Intel Core i5-3450Rival
Desktop
- AMD A10-5800KRival
Desktop
Vastly superior modern quad-core with hyper-threading.
Compare head-to-head- AMD Ryzen 5 3600Alt
Excellent value used hex-core.
Slightly faster Haswell alternative for the same socket.
Compare head-to-headCheaper Sandy Bridge alternative if overclocking is desired.
Compare head-to-head- AMD Ryzen 3 4100Alt
Budget modern alternative.
Our Verdict on Each
A reliable low-power CPU for 2012 SFF builds, but outdated and slow for modern workloads.
Best for: Restoring an old SFF office PC
Read the full reviewA solid legacy processor that still handles basic tasks, but lacks the performance and modern features needed for current workloads.
Best for: The Core i5-3550 is completely obsolete and should not be considered for a new build. If you are repairing an older LGA 1155 system or building a budget retro gaming rig, it can be a functional, cheap drop-in part. It still handles basic web browsing and document editing adequately, provided you use lightweight software and an SSD. However, its lack of modern instruction sets and low single-thread performance will bottleneck any modern GPU or application. If you have an existing system, it might be worth a cheap upgrade from a Pentium or i3, but otherwise, save your money for a modern platform. Do not spend more than a few dollars on this chip, as even the cheapest new processors offer vastly superior performance-per-watt.
Read the full reviewFrequently Asked Questions
Which is better, Core i5-3450S or Intel Core i5-3550?
Based on our editorial ratings, the Intel Core i5-3550 comes out ahead with a score of 6/10. 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, Core i5-3450S or Intel Core i5-3550?
For gaming, the Intel Core i5-3550 leads with a gaming performance score of 30/100 among Core i5-3450S and Intel Core i5-3550.
Which uses less power?
The Core i5-3450S has the lowest rated TDP. Power draw across these chips: Core i5-3450S (65 W), Intel Core i5-3550 (77 W).
Do Core i5-3450S and Intel Core i5-3550 use the same socket?
No. They use different sockets (Core i5-3450S: LGA 1155, Intel Core i5-3550: Intel Socket 1155 (LGA1155)), so each needs a compatible motherboard.
Which is faster in multi-core benchmarks?
The Intel Core i5-3550 posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-3550 (6,000). Benchmark figures are approximate and workload-dependent.