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.
Highest single-threaded Arrandale i5 performance helps slightly in office tasks, but the difference from lower SKUs is minimal in practice.
Gaming
Slightly better than the i5-430M but still entirely dependent on discrete graphics for any gaming capability.
Identical to the socketed i5-580M. First-gen Intel HD Graphics prevents any meaningful gaming experience with modern titles.
Virtualization
Slightly more headroom than the 430M but still impractical for serious VM workloads.
VT-x and VT-d present, but 2 cores and 3MB cache make any serious virtualization impractical.
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 turbo at same power shows good process binning.
Specialized Performance
AI / ML
- No AI capabilities
- No AVX support
- Completely unsuitable for AI workloads
- No AI acceleration capabilities
Content Creation
Gaming
- Graphics on chipset, not CPU
- GMA HD extremely limited
- Requires discrete GPU for any gaming
- Performance identical to socketed i5-580M
- 3.333 GHz turbo irrelevant when GPU is the bottleneck
- Only viable for very old or lightweight games
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 any Arrandale i5 BGA variant
- Best-binned 32nm silicon in a compact package
- AES-NI, VT-x, VT-d included
- Same 35W TDP as lower-clocked variants
Cons
- BGA package requires professional rework for replacement
- Zero upgrade path
- Only 3MB L3 cache
- No AVX support
- 8GB RAM ceiling
- Launched mere months before Sandy Bridge obsolescence
- Used market pricing may not reflect actual value
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 Turion II N570Rival
Performance Mobile
- AMD Phenom II N660Rival
Mainstream Mobile
- Intel Core i5-560M BGAAlt
133 MHz less turbo but potentially much cheaper and functionally similar for repair purposes.
- Intel Core i7-620M BGAAlt
Same turbo clock but with 4MB L3 cache if available for the specific motherboard.
- Intel Core i5-540M BGAAlt
Significantly cheaper on the used market with only modest performance reduction.
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 BGA i5-580M delivers the same impressive 3.333 GHz turbo as the socketed variant but in a non-upgradeable package, making it solely relevant for repair and preservation of specific laptop models.
Best for: Exact replacement for a failed BGA i5-580M (SLC29) in a specific laptop model during board-level repair
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 i5-450M comes out ahead with a score of 4.2/10. 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 BGA 1288), 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.