CPU Comparison
Intel Core i5-450M vs Intel Core i5-580M
A side-by-side comparison of specs, performance and value. The Intel Core i5-450M is a slightly higher-clocked Arrandale dual-core mobile processor released in September 2010, offering 2.4 GHz base and 2.667 GHz turbo speeds with the same dual-die 32nm/45nm design as the i5-430M.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Marginally faster than the i5-430M in CPU-bound tasks, but the difference is barely noticeable in real use.
The highest single-threaded performance of any Arrandale i5 translates to slightly better responsiveness in office applications.
Gaming
Slightly better than the i5-430M but still entirely dependent on discrete graphics for any gaming capability.
The extra 133 MHz turbo provides a negligible improvement in gaming, as the first-gen Intel HD GPU remains the binding constraint.
Virtualization
Slightly more headroom than the 430M but still impractical for serious VM workloads.
Still fundamentally limited by 2 cores and 3MB cache, but the higher clock helps slightly in CPU-bound VM tasks.
Efficiency
Same 35 W TDP with only ~6% more frequency than the i5-430M, resulting in slightly worse performance per watt.
Same 35W TDP as all Arrandale i5s. Higher clocks at the same power budget show good 32nm process maturity.
Specialized Performance
AI / ML
- No AI capabilities
- No AVX support
- Completely unsuitable for AI workloads
- No AI acceleration of any kind
- Completely unsuitable for AI workloads
Content Creation
Gaming
- Graphics on chipset, not CPU
- GMA HD extremely limited
- Requires discrete GPU for any gaming
- 3.333 GHz turbo does not overcome integrated graphics limitations
- Slightly better CPU-bound game performance than i5-560M
- Still unplayable in any modern 3D title
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Slightly faster than i5-430M at the same TDP
- Socket G1 allows upgrade to i7-620M
- AES-NI and VT-x/VT-d support
- Reliable and well-tested platform
- Hyper-Threading improves multitasking
Cons
- Minimal performance improvement over i5-430M
- Launched just months before Sandy Bridge made it obsolete
- No on-die GPU
- No AVX instruction support
- DDR3-1066 memory speed limitation
- Only 8 GB maximum RAM
Pros
- Highest Turbo Boost in the Arrandale i5 lineup
- Socket G1 allows direct upgrade installation
- Best-binned silicon from mature 32nm process
- AES-NI, VT-x, VT-d all included
- Higher clocks at same 35W TDP as lower SKUs
Cons
- Completely obsolete for modern computing
- Only 3MB L3 cache (same as cheaper i5s)
- No AVX instruction support
- 8GB RAM limitation
- First-gen Intel HD Graphics severely limits any graphical task
- Sandy Bridge made it redundant within 4 months
Competitors & Alternatives
Intel Core i5-450M
- AMD Turion II N530Rival
Mobile Mainstream
- AMD Phenom II N620Rival
Mobile Performance
- Compare head-to-headIntel Core i5-430MRival
Mobile Mainstream
- Intel Core i5-520MRival
Mobile Performance
- Intel Core i7-620MRival
Mobile Performance
Fastest Arrandale i5 with 2.66 GHz base and 3.33 GHz turbo.
Compare head-to-head- Intel Core i5-2410MAlt
Sandy Bridge replacement requiring a new laptop but offering on-die graphics and AVX support.
- AMD Ryzen 5 5500UAlt
Modern alternative with vastly superior performance for a new laptop purchase.
Intel Core i5-580M
- AMD Phenom II N660Rival
Mainstream Mobile
- AMD Turion II N570Rival
Performance Mobile
- Intel Core i7-620MAlt
Same socket, same turbo clock, but with 4MB L3 cache for a more meaningful upgrade.
133 MHz less turbo for potentially significantly less money on the used market.
Compare head-to-head- Intel Core i7-640MAlt
Even higher 3.467 GHz turbo and 4MB cache if budget allows.
Our Verdict on Each
The i5-450M is a minor clock speed increase over the i5-430M that arrived just months before Sandy Bridge rendered the entire Arrandale lineup obsolete. Only relevant for existing Socket G1 laptop owners considering a cheap upgrade.
Best for: Found in an existing laptop at no additional cost
Read the full reviewThe i5-580M is the best Arrandale Core i5 you can buy for a Socket G1 laptop, offering the highest turbo frequency in the lineup, though it remains obsolete for modern use.
Best for: As a final upgrade for a Socket G1 laptop where maximum Arrandale performance is desired
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i5-450M or Intel Core i5-580M?
Based on our editorial ratings, the Intel Core i5-580M comes out ahead with a score of 4.5/10. 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 i5-450M or Intel Core i5-580M?
For gaming, the Intel Core i5-580M leads with a gaming performance score of 19/100 among Intel Core i5-450M and Intel Core i5-580M.
Do Intel Core i5-450M and Intel Core i5-580M use the same socket?
No. They use different sockets (Intel Core i5-450M: Intel Socket G1, Intel Core i5-580M: Intel Socket G1 (rPGA988A)), so each needs a compatible motherboard.
Which is faster in multi-core benchmarks?
The Intel Core i5-450M posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-450M (3,000), Intel Core i5-580M (2,070). Benchmark figures are approximate and workload-dependent.