CPU Comparison
Intel Core i5-650 vs Intel Core i5-661
A side-by-side comparison of specs, performance and value. The Intel Core i5-650 is a dual-core desktop processor from the Clarkdale generation, featuring Hyper-Threading and integrated Intel HD Graphics, launched in early 2010.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Extremely slow by modern standards for any productivity application.
Identical CPU performance to the i5-660, inadequate for modern productivity.
Gaming
Cannot run modern games at playable frame rates. Only suitable for pre-2010 titles.
The 900MHz iGPU was slightly more capable than other Clarkdales but still cannot handle any modern 3D workload.
Virtualization
Two cores with Hyper-Threading offer minimal utility for virtualization.
Two cores with Hyper-Threading offer minimal virtualization capability.
Efficiency
73W TDP for two cores is poor efficiency compared to modern chips.
87W TDP for a dual-core with basic integrated graphics represents very poor efficiency.
Specialized Performance
AI / ML
- No AI acceleration instructions
- Far too slow for any ML workload
- No AI capabilities
- Completely unsuitable for machine learning
Content Creation
Gaming
- No modern game will run acceptably
- Integrated HD Graphics cannot handle 3D workloads
- Only viable for 2D or browser-based games
- 900MHz iGPU was the fastest in Clarkdale but still far too slow for modern games
- Could handle very light 2010-era games at low resolution
- A discrete GPU was still necessary for any serious gaming
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Historically significant as first 32nm desktop CPU
- Integrated graphics for basic display output
- Hyper-Threading helps with light multitasking
- Low used-market cost
Cons
- Only two cores, completely insufficient today
- Extremely slow by any modern standard
- No AVX instruction support
- Obsolete LGA 1156 platform with no upgrade path
- Integrated graphics cannot handle any 3D workload
Pros
- Fastest integrated graphics in the Clarkdale lineup
- Same capable dual-core CPU as the i5-660
- Good hardware video decode acceleration
- Interesting variant for collectors
Cons
- 87W TDP is high for a dual-core with basic iGPU
- GPU improvement was marginal in practice
- Same two-core limitation as all Clarkdale i5s
- No AVX instruction support
- Completely obsolete platform
Competitors & Alternatives
Intel Core i5-650
- AMD Athlon II X4 635Rival
Budget Desktop
- AMD Phenom II X2 560Rival
Dual-Core Desktop
- AMD Phenom II X4 925Rival
Quad-Core Desktop
- Compare head-to-headIntel Core i5-750Rival
Mainstream Desktop
- Intel Core 2 Quad Q9400Rival
Legacy Quad-Core
- AMD Phenom II X4 945Alt
Four cores at a similar price point in 2010.
- Intel Core i3-530Alt
Similar performance at a lower price if integrated graphics were needed.
Intel Core i5-661
- AMD Athlon II X4 640Rival
Budget Quad-Core
- AMD Phenom II X2 565Rival
Dual-Core Desktop
- Compare head-to-headIntel Core i5-750Rival
Quad-Core Desktop
- AMD 880G Integrated PlatformRival
Integrated Graphics Platform
- NVIDIA GeForce 9400 GT + Pentium E6600Rival
Budget Discrete GPU Combo
Same CPU performance with 14W lower TDP for $10 less.
Compare head-to-head- AMD 880G PlatformAlt
Better integrated graphics performance from AMD's platform at lower cost.
Our Verdict on Each
A historically significant processor that introduced 32nm manufacturing to desktops, but completely obsolete for any modern workload.
Best for: Keeping an existing LGA 1156 system running for basic tasks
Read the full reviewThe faster 900MHz iGPU was a notable differentiator in 2010 but did not overcome the fundamental dual-core limitation. The 87W TDP was a significant penalty.
Best for: Running an existing i5-661 system for basic tasks
Read the full reviewFrequently Asked Questions
Which is faster for gaming, Intel Core i5-650 or Intel Core i5-661?
For gaming, the Intel Core i5-661 leads with a gaming performance score of 7/100 among Intel Core i5-650 and Intel Core i5-661.
Which uses less power?
The Intel Core i5-650 has the lowest rated TDP. Power draw across these chips: Intel Core i5-650 (73 W), Intel Core i5-661 (87 W).
Do Intel Core i5-650 and Intel Core i5-661 use the same socket?
Yes — all of these CPUs use the LGA 1156 socket, so they share compatible motherboards.
Which is faster in multi-core benchmarks?
The Intel Core i5-661 posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-650 (4,350), Intel Core i5-661 (4,600). Benchmark figures are approximate and workload-dependent.