CPU Comparison
Intel Core i5-2400S vs Intel Core i5-2500S
A side-by-side comparison of specs, performance and value. The Intel Core i5-2400S is a quad-core processor tailored for small form factor desktops that cannot accommodate standard 95W cooling solutions. By maintaining four physical cores but lowering the base and turbo frequencies compared to the standard i5-2400, Intel achieved a 65W thermal envelope. It lacks Hyper-Threading, a defining characteristic of non-K Sandy Bridge i5 processors, meaning it handles four threads natively. Equipped with 6 MB of shared L3 cache and Intel HD 2000 graphics, it provided a balanced blend of multi-core productivity and low-power operation for home and office PCs during its prime.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Handles basic office tasks but struggles with heavy spreadsheets or modern web apps.
Handles legacy office workloads well, but sustained multi-core loads cause it to throttle below standard i5-2500 speeds.
Gaming
Cannot handle modern AAA games, even at lowest settings.
Intel HD 2000 graphics prevent any meaningful modern gaming experience.
Virtualization
Can run a basic NAS OS or light VM, but limited by 4 threads.
Good enterprise virtualization feature support, but limited by four total threads.
Efficiency
Good power-to-core ratio for the 32nm era.
Excellent efficiency for 2011, drawing significantly less power at idle and light loads than 95 W parts.
Specialized Performance
AI / ML
- No AI hardware capabilities
- Too slow for practical machine learning inference
- No AI acceleration capabilities
- AVX support exists but lacks AVX2 for modern workloads
- Far too slow for practical AI tasks
Content Creation
Gaming
- HD 2000 graphics lack driver support for modern titles
- Even with a discrete GPU, CPU bottlenecks severely
- Playable only in legacy esports like CS 1.6
- Intel HD 2000 is a severe bottleneck for 3D rendering
- Can handle older 2D or very light 3D indie games
- Requires a discrete GPU for any acceptable gaming experience
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- True quad-core CPU
- Low 65W power draw
- Cool and quiet operation
- Full 6 MB L3 cache
Cons
- No Hyper-Threading
- Low clock speeds
- Outdated HD 2000 graphics
- Not Windows 11 compatible
- Locked multiplier
Pros
- Matches the 3.7 GHz turbo of the standard 95 W i5-2500
- 65 W TDP allows for much quieter, smaller cooling solutions
- Full enterprise feature set including TXT and VT-d
- Lower idle power consumption than standard desktop parts
- Reliable Sandy Bridge architecture
Cons
- Lower sustained multi-core clocks due to 65 W limit
- Intel HD 2000 graphics are very weak
- Locked multiplier
- No Hyper-Threading
- Obsolete platform with no upgrade path
Competitors & Alternatives
Intel Core i5-2400S
- AMD Phenom II X4 960TRival
Desktop
- AMD FX-4100Rival
Desktop
- AMD A8-3800Rival
Desktop APU
- Compare head-to-headIntel Core i5-2390TRival
Desktop
- Intel Core i3-2125Rival
Desktop
Standard power, faster clocks for tower PCs.
Compare head-to-headSame power, better integrated graphics.
Compare head-to-head- AMD FX-4300Alt
Slightly newer platform with more upgrade paths.
- Intel Core i7-2600SAlt
Same 65W TDP but adds Hyper-Threading.
- Intel Xeon E3-1235Alt
Similar specs with better graphics, though 80W TDP.
Intel Core i5-2500S
- AMD Phenom II X4 840TRival
Low Power Desktop
- AMD A8-3820Rival
Desktop APU
- Compare head-to-headIntel Core i5-2400SRival
Low Power Desktop
- AMD A6-3670Rival
Budget Desktop
- Compare head-to-headIntel Core i5-2500TRival
Ultra Low Power Desktop
If your SFF chassis can handle 95 W, the standard 2500 offers better sustained performance for less money.
Compare head-to-headIvy Bridge successor with better integrated graphics and slightly improved efficiency.
Compare head-to-head- Intel Core i7-2600SAlt
Adds Hyper-Threading (8 threads) for better multi-tasking within the same 65 W power envelope.
Our Verdict on Each
A power-efficient quad-core chip that is now strictly relegated to keeping legacy small form factor office PCs operational.
Best for: Direct replacement for a failed CPU in a Dell Optiplex SFF
Read the full reviewA highly effective power-optimized Sandy Bridge chip that delivered excellent burst performance for its 65 W TDP, though entirely outclassed today.
Best for: Replacing a failed CPU in a proprietary Small Form Factor PC that strictly requires a 65 W or lower processor.
Read the full reviewFrequently Asked Questions
Which is faster for gaming, Intel Core i5-2400S or Intel Core i5-2500S?
For gaming, the Intel Core i5-2400S leads with a gaming performance score of 15/100 among Intel Core i5-2400S and Intel Core i5-2500S.
Do Intel Core i5-2400S and Intel Core i5-2500S use the same socket?
Yes — all of these CPUs use the LGA 1155 socket, so they share compatible motherboards.
Which is faster in multi-core benchmarks?
The Intel Core i5-2500S posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-2400S (2,400), Intel Core i5-2500S (3,800). Benchmark figures are approximate and workload-dependent.