CPU Comparison

Intel Core i7-5775R vs Core i5-12400

A side-by-side comparison of specs, performance and value. The Intel Core i7-5775R is a unique desktop processor based on the 14nm Broadwell architecture, distinguished by its use of BGA packaging and the inclusion of powerful Iris Pro Graphics. Designed primarily for All-in-One (AIO) systems and Intel NUCs, this chip is soldered directly to the motherboard. It features four cores and eight threads, operating at a base clock of 3.3 GHz and boosting up to 3.8 GHz. The standout feature is the integrated Intel Iris Pro Graphics 6200, which includes 128 MB of embedded L4 cache (eDRAM), drastically improving both graphical performance and CPU memory access speeds. With a 65-watt TDP, it balances performance and efficiency. The processor supports dual-channel DDR3 memory and provides 16 PCIe 3.0 lanes. While not intended for gaming with discrete GPUs, its integrated graphics were revolutionary for the time, allowing compact systems to handle moderate gaming and 4K media without a dedicated card.

Intel · Core i7
Intel Core i7-5775R
4C / 8T3.8 GHz65 W
8
Full review
Top pick
Intel · Core i5
Core i5-12400
6C / 12T4.4 GHz65 W
9
Full review

The Bottom Line

Overview & Launch

Brand
Intel
Intel
Market
Desktop
Desktop
Segment
Desktop
Desktop
Generation
Core i7 (Broadwell)
12th Gen
Launched
2015
2022
Status
End-of-life
Active
Codename
Broadwell
Alder Lake-S
Series
Core i7
Core i5
Family
5th Generation
Alder Lake
Predecessor
Intel Core i7-4770R
Intel Core i5-11400
Successor
Intel Core i7-6700
Intel Core i5-13400

Specifications Compared

Cores & Clocks
Cores
4
6
Threads
8
12
Base Clock
3.3 GHz
2.5 GHz
Boost Clock
3.8 GHz
4.4 GHz
Cache & Power
L3 Cache
6 MB
18 MB
TDP
65 W
65 W
Architecture
Architecture
Broadwell
Alder Lake-S
Process Node
14nm
Intel 7 (10nm)
Memory
Memory Type
DDR3
DDR4, DDR5
Memory Speed
1866 MT/s
DDR5-4800, DDR4-3200
Memory Channels
Dual (2)
Dual (2)
Max Memory
32 GB
256 GB
Platform & I/O
Socket
Intel BGA 1364
LGA 1700
PCIe Version
Gen 3
PCIe 5.0
PCIe Lanes
16
16
Integrated GPU
Yes
Yes
Unlocked
No
No

Performance Compared

Productivity

Intel Core i7-5775R70

4 cores and high IPC handle office tasks effortlessly.

Core i5-12400Best85

Snappy and reliable for all standard desktop applications.

Gaming

Intel Core i7-5775R50

Iris Pro 6200 can handle older or eSports titles at 720p/1080p Low.

Core i5-12400Best90

Fantastic gaming performance that punches well above its weight class.

Virtualization

Intel Core i7-5775R55

Capable of light VMs, but limited by 65W TDP.

Core i5-12400Best78

Very capable for homelab and development VMs.

Efficiency

Intel Core i7-5775RBest95

14nm process makes it incredibly power-efficient.

Core i5-1240090

Highly efficient 65W design with minimal heat output.

Specialized Performance

AI / ML

Intel Core i7-5775RLimited
  • No AI hardware
  • eDRAM helps slightly with CPU inference
Core i5-12400Limited
  • No dedicated AI hardware
  • Standard CPU inference

Content Creation

Intel Core i7-5775RFair
Basic Photo Editing1080p Video EditingAudio Production
Core i5-12400Good
Premiere Pro (1080p)PhotoshopOBS StudioBlender (CPU)

Gaming

Intel Core i7-5775RFair
  • Iris Pro 6200 was great for integrated graphics
  • Can play older AAA games at low settings
  • Not suitable for modern AAA titles
Core i5-12400Excellent
  • Does not bottleneck current mid-range GPUs
  • Strong single-core speeds
  • Consistent frame times due to pure P-cores

Industry Impact

Gaming
Moderate
High
Workstations
Low
Moderate
Content Creation
Low
High
Virtualization
Low
Moderate

Best CPU by Use Case

Light Gaming
Good
4K Media Playback
Excellent
Office Productivity
Excellent
Excellent
Web Browsing
Excellent
Heavy Rendering
Poor
1080p Gaming
Excellent
Esports Gaming
Excellent
Programming
Excellent
Light Streaming
Good

Target Audience

Gamers
Targeted
Content Creators
Developers
Targeted
Targeted
Workstation Users
Streamers
Targeted
Office / Productivity
Targeted
Targeted
Students
Targeted
Targeted

Strengths & Weaknesses

Intel Core i7-5775R

Pros

  • Powerful Iris Pro 6200 graphics
  • 128 MB L4 eDRAM
  • Highly efficient 14nm process
  • Good CPU performance

Cons

  • Soldered to motherboard (BGA)
  • Locked multiplier
  • Only supports DDR3
  • Hard to find standalone
Core i5-12400

Pros

  • Outstanding price-to-performance
  • Pure 6 P-core design
  • Runs cool and quiet
  • DDR5 and PCIe 5.0 support
  • Includes Laminar RM1 cooler

Cons

  • Locked multiplier
  • UHD 730 graphics are basic
  • Only 16 PCIe 5.0 lanes
  • No E-cores for background tasks
  • 117W PL2 requires decent motherboard VRM

Competitors & Alternatives

Intel Core i7-5775R

Core i5-12400

Our Verdict on Each

A revolutionary processor for integrated graphics, bringing Iris Pro 6200 to compact form factors, though its BGA nature limits DIY appeal.

Best for: Purchasing a used AIO or NUC for basic office work or media consumption.

Read the full review
Core i5-12400Recommended

An outstanding value CPU that delivers excellent gaming and productivity performance without breaking the bank.

Best for: Building a budget or mid-range gaming PC where value is the top priority.

Read the full review

Frequently Asked Questions

Which is better, Intel Core i7-5775R or Core i5-12400?

Based on our editorial ratings, the Core i5-12400 comes out ahead with a score of 9/10. 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 i7-5775R or Core i5-12400?

For gaming, the Core i5-12400 leads with a gaming performance score of 90/100 among Intel Core i7-5775R and Core i5-12400.

Do Intel Core i7-5775R and Core i5-12400 use the same socket?

No. They use different sockets (Intel Core i7-5775R: Intel BGA 1364, Core i5-12400: LGA 1700), so each needs a compatible motherboard.

Which has more cores?

The Core i5-12400 has the most cores. Core counts: Intel Core i7-5775R (4 cores), Core i5-12400 (6 cores).

Which is faster in multi-core benchmarks?

The Core i5-12400 posts the highest multi-core benchmark score. Multi-core results: Intel Core i7-5775R (7,000), Core i5-12400 (16,500). Benchmark figures are approximate and workload-dependent.