Quick Verdict
A reliable low-power CPU for 2012 SFF builds, but outdated and slow for modern workloads.
Overview
Launch
2012
Status
End-of-lifeGeneration
3rd Gen (Ivy Bridge)
Market
Desktop
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 Intel Core i5-3450S brings Ivy Bridge efficiency to small form factor builds. With a 65W TDP and base clock of 2.8 GHz, it is tailored for quiet, compact chassis.
It features 4 cores and HD 2500 graphics, making it suitable for office tasks and media consumption. While it lacks Hyper-Threading and modern features, its turbo boost up to 3.5 GHz provides adequate burst performance for legacy systems.
Specifications
Performance
Handles office tasks well, but low base clock limits heavy multitasking.
Basic VMs are possible but limited by 4 threads.
HD 2500 graphics are too weak for gaming; requires a dedicated GPU for any 3D workloads.
Highly efficient for its era, tailored for SFF systems.
- •HD 2500 is useless for modern gaming
- •Low base clock limits CPU performance
- •Suitable only for retro or 2D games
- •No AI acceleration
- •Low compute capacity
Architecture
22nm
Process Node
Ivy Bridge
Codename
4C / 4T
Core Config
6 MB
L3 Cache
65 W
TDP
Architecture Overview
The i5-3450S utilizes the Ivy Bridge microarchitecture on Intel's 22nm process, optimized for lower voltage curves.
CPU Design
4 cores and 4 threads with a locked multiplier, tuned to fit within a 65W thermal envelope.
Memory Subsystem
Dual-channel DDR3 memory controller supporting up to 1600 MT/s.
PCIe & I/O
16 PCIe 3.0 lanes for expansion cards and fast storage.
Overclocking
Locked; designed for stable, low-power operation.
- Shrink to 22nm process
- Native DDR3-1600 support
- Introduction of PCIe 3.0
Key Highlights
- Low 65W TDP
- Good turbo boost frequency (3.5 GHz)
- Runs cool and quiet
- Reliable quad-core design
- Low base clock of 2.8 GHz
- Uses outdated DDR3 memory
- HD 2500 graphics are very weak
- Not supported by Windows 11
History
The Core i5-3450S was launched in mid-2012 to cater to the small form factor and all-in-one PC markets. System builders needed processors that could fit into tight thermal envelopes without sacrificing too much performance. The 3450S answered this by lowering the TDP to 65W and the base clock to 2.
8 GHz, while retaining the ability to boost up to 3.5 GHz. This made it an ideal choice for HTPCs and office machines where quiet operation was paramount.
It saw significant adoption in OEM systems, including various Apple and Lenovo compact desktops. While it has long been discontinued, it represents an era where Intel began seriously segmenting its lineup to address specific power and form-factor requirements.
Improvements over Previous Generation
- Shrink to 22nm process
- Native DDR3-1600 support
- Introduction of PCIe 3.0
Alternatives & Competitors
Should You Buy It?
Not Recommended for the right buyer
Restoring an old SFF office PC
Avoid if…
- Building a new PC
- Needing modern performance
- Playing modern games
Use Cases
Interesting Facts
The 'S' suffix denotes a performance-optimized low-power SKU.
Despite the low base clock, its max turbo of 3.5 GHz matches the standard i5-3450.
It was a popular choice for Apple Mac Mini models.
The processor supports Intel Quick Sync Video for fast media transcoding.
It has a die size of 160 mm².
The CPU supports VT-d for directed I/O virtualization.
It was built on the same 22nm Tri-Gate process as standard Ivy Bridge chips.
It can drive up to three independent displays via the integrated graphics.
The max memory bandwidth is officially rated at 25.6 GB/s.
It lacks TSX-NI instructions found in later Intel generations.
People Also Ask
Is the Core i5-3450S good for gaming?
No, the HD 2500 graphics are too weak for gaming. It requires a dedicated GPU for any 3D workloads.
What is the difference between i5-3450 and i5-3450S?
The 3450S has a lower base clock (2.8 GHz vs 3.1 GHz) and a lower TDP (65W vs 77W).
Can the i5-3450S run Windows 11?
Not officially. It is too old to meet Windows 11 requirements.
What is the TDP of the i5-3450S?
It has a Thermal Design Power of 65 Watts.
Does the i5-3450S have HD 4000 graphics?
No, it features the weaker Intel HD 2500 graphics.
What socket does the i5-3450S use?
It uses the LGA 1155 socket.
Can I overclock the i5-3450S?
No, the multiplier is locked.
Does the i5-3450S support DDR4?
No, it only supports DDR3 memory.
What is the base clock of the i5-3450S?
The base clock is 2.8 GHz.
What is the max turbo of the i5-3450S?
The maximum turbo frequency is 3.5 GHz.
Frequently Asked Questions
What does the S suffix mean?
S stands for a performance-optimized low-power SKU, usually with a 65W TDP.
Does the i5-3450S support Hyper-Threading?
No, it has 4 cores and 4 threads.
What generation is the i5-3450S?
It is a 3rd generation Ivy Bridge processor.
How much RAM does the i5-3450S support?
It supports up to 32GB of DDR3 RAM.
Does the i5-3450S have VT-d?
Yes, it supports VT-x but not VT-d.
Is the i5-3450S unlocked?
No, it is a locked processor.
Can the i5-3450S play 4K video?
It can struggle with 4K software decoding, but Quick Sync helps with supported formats.
Is the i5-3450S good for video editing?
It is very slow for modern video editing.
What cooling is needed for the i5-3450S?
A standard LGA 1155 cooler is sufficient due to the low 65W TDP.
What is the launch price of the i5-3450S?
It launched at around $184.