Quick Verdict
An interesting low-power variant that traded clock speed for efficiency, but the 2.4GHz base clock limited performance even in 2010.
Overview
Launch
2010
Status
DiscontinuedGeneration
1st Gen (Nehalem derivative)
Market
Desktop
The Intel Core i5-750s is a low-power variant of the Lynnfield quad-core, running at 2.4GHz with an 82W TDP for smaller form factor and energy-conscious builds.
The Core i5-750s reduced the TDP from 95W to 82W by lowering the base clock from 2.666GHz to 2.4GHz, while maintaining the same turbo boost ceiling of 3.
2GHz. This meant single-threaded performance could match the standard i5-750 under light loads, but sustained multi-threaded workloads were noticeably slower.
Specifications
Performance
Slower than the standard i5-750 in sustained multi-threaded workloads due to the 2.4GHz base.
Four cores help but lower clocks limit VM performance.
Turbo boost helps in light gaming but the low base clock hurts in sustained loads.
Better efficiency than the standard i5-750 at 82W, though still poor by modern standards.
- •2.4GHz base clock is too low for modern games
- •Turbo boost to 3.2GHz helps slightly in lightly threaded scenarios
- •Requires a discrete GPU for any gaming
- •No AI acceleration
- •Far too slow for any ML workload
Architecture
45nm
Process Node
Lynnfield
Codename
4C / 4T
Core Config
8 MB
L3 Cache
82 W
TDP
Architecture Overview
The i5-750s uses the same 296mm² Lynnfield die as the standard i5-750 but is binned for lower voltage operation and paired with a lower 18x multiplier (vs 20x) for a 2.4GHz base clock. The turbo boost behavior is more aggressive relative to base, jumping from 2.4GHz to 3.2GHz on a single core.
CPU Design
Four Nehalem cores at 2.4GHz base with turbo boost to 3.2GHz on one core, 2.933GHz on two cores, and 2.666GHz on four cores. The larger turbo delta means more dependence on turbo for acceptable performance.
Memory Subsystem
Dual-channel DDR3-1333, identical to the standard i5-750.
PCIe & I/O
16 PCIe 2.0 lanes from the on-die controller.
Overclocking
Locked multiplier. BCLK overclocking possible but the low base multiplier means less flexibility.
- 13W lower TDP (82W vs 95W)
- Better suited for small form factor builds
- Same maximum turbo boost as standard i5-750
Key Highlights
- Lower power consumption for small form factor builds
- Same turbo boost ceiling as standard i5-750
- Four real cores with 8MB cache
- Lower thermal output simplifies cooling
- 2.4GHz base clock was slow even in 2010
- Significant performance drop in sustained multi-threaded workloads
- No integrated graphics requires discrete GPU
- No AVX support
- Completely obsolete platform
History
The Core i5-750s launched on January 7, 2010, as Intel's answer to the growing small form factor PC market. While standard Lynnfield processors at 95W could be cooled in compact cases, the thermal margins were thin. The i5-750s addressed this by reducing the TDP to 82W through a combination of lower operating voltage and a reduced 18x multiplier for a 2.
4GHz base clock.</br></br>The concept was sound: most desktop workloads are bursty, meaning the processor spends much of its time at idle or low activity levels where the lower base clock has no impact. When single-threaded performance was needed, turbo boost could push to 3.
2GHz, matching the standard i5-750's maximum. The trade-off only became apparent in sustained multi-threaded workloads, where all four cores would be active and limited to approximately 2.666GHz.
</br></br>Despite its logical positioning, the i5-750s never gained significant market traction. System builders who needed low power often opted for Clarkdale i5s with integrated graphics, eliminating the need for a discrete GPU and its associated power draw. Meanwhile, those who needed quad-core performance simply used the standard i5-750 with adequate cooling.
The i5-750s occupied a narrow niche that ultimately proved too small to sustain, and Intel did not continue the S-series for subsequent generations of mainstream desktop processors.
Improvements over Previous Generation
- 13W lower TDP (82W vs 95W)
- Better suited for small form factor builds
- Same maximum turbo boost as standard i5-750
Alternatives & Competitors
Should You Buy It?
Not Recommended for the right buyer
Maintaining an existing SFF Lynnfield build
Avoid if…
- Any new system build
- Performance-sensitive workloads
- Any scenario where the standard i5-750 is available
Use Cases
Interesting Facts
The 'S' suffix designated low-power desktop processors, a naming convention Intel used across several generations.
Despite the 82W TDP, the i5-750s could turbo to the same 3.2GHz as the 95W i5-750.
The 18x multiplier was the lowest in the Lynnfield i5 lineup.
The large gap between base (2.4GHz) and turbo (3.2GHz) meant performance varied dramatically depending on load.
It was significantly less common than the standard i5-750, appearing primarily in OEM SFF systems.
The 13W power reduction came primarily from lower voltage rather than architectural changes.
Part number SLBLH suggests it was a late-addition SKU to the Lynnfield lineup.
The i5-750s launched simultaneously with the Clarkdale i5-650 and i5-660 on January 7, 2010.
Some enthusiasts preferred the i5-750s for BCLK overclocking, as the lower base multiplier provided more headroom.
The i5-750s demonstrated Intel's early efforts at segmenting power profiles within the same architecture.
People Also Ask
What does the S mean in i5-750s?
The S suffix indicates a low-power variant with reduced TDP and lower base clock speed.
Is the i5-750s faster than the i5-750?
No. It has the same turbo boost (3.2GHz) but a lower base clock (2.4GHz vs 2.666GHz), making it slower in sustained multi-threaded workloads.
What is the TDP of the i5-750s?
82 watts, compared to 95 watts for the standard i5-750.
Does the i5-750s have integrated graphics?
No. Like all Lynnfield processors, it requires a discrete graphics card.
Can the i5-750s run Windows 11?
No. It lacks TPM 2.0 and required instruction sets.
What is the turbo boost of the i5-750s?
Up to 3.2GHz on a single core, same as the standard i5-750.
Was the i5-750s good for gaming?
Marginal in 2010 with a discrete GPU. The low base clock caused stuttering in CPU-heavy games.
What socket does the i5-750s use?
LGA 1156.
How many cores does the i5-750s have?
4 physical cores with 4 threads (no Hyper-Threading).
Can the i5-750s be overclocked?
Through BCLK adjustment only. The low base multiplier actually provides more BCLK headroom than the standard i5-750.
Frequently Asked Questions
What is the base clock?
2.4 GHz.
How much L3 cache?
8MB shared.
What is the multiplier?
18.0x (locked).
Does it support Hyper-Threading?
No.
What chipsets are compatible?
Intel P55, H55, H57.
What is the part number?
SLBLH.
What is the die size?
296mm².
How many transistors?
774 million.
Does it support ECC memory?
No.
What PCIe version?
PCIe 2.0 with 16 lanes.