CPU Comparison

Intel Core i7-5775C vs Intel Core i7-5775R

A side-by-side comparison of specs, performance and value. The Intel Core i7-5775C is a rare and highly sought-after socketed desktop processor based on the 14nm Broadwell architecture. Unlike its BGA counterpart, the 5775R, this chip utilizes the LGA 1150 socket, offering a unique upgrade path for users on older Z97 motherboards. It features four cores and eight threads, operating at a base clock of 3.3 GHz with a turbo boost of 3.7 GHz. The defining feature is the inclusion of Intel Iris Pro Graphics 6200 with 128 MB of embedded L4 cache (eDRAM). This eDRAM not only supercharges the integrated graphics but also acts as a low-latency memory buffer for the CPU cores, giving it an edge in certain CPU-bound gaming scenarios when paired with a discrete GPU. With a 65-watt TDP and an unlocked multiplier, it is a versatile chip. It represents a unique moment in Intel's history where high-end integrated graphics and eDRAM were brought to the standard DIY desktop market.

Top pick
Intel · Core i7
Intel Core i7-5775C
4C / 8T3.7 GHz65 W
8.5
Full review
Intel · Core i7
Intel Core i7-5775R
4C / 8T3.8 GHz65 W
8
Full review

The Bottom Line

Overview & Launch

Brand
Intel
Intel
Market
Desktop
Desktop
Segment
Desktop
Desktop
Generation
Core i7 (Broadwell)
Core i7 (Broadwell)
Launched
2015
2015
Status
Active
End-of-life
Codename
Broadwell
Broadwell
Series
Core i7
Core i7
Family
5th Generation
5th Generation
Predecessor
Intel Core i7-4790
Intel Core i7-4770R
Successor
Intel Core i7-6700
Intel Core i7-6700

Specifications Compared

Cores & Clocks
Cores
4
4
Threads
8
8
Base Clock
3.3 GHz
3.3 GHz
Boost Clock
3.7 GHz
3.8 GHz
Cache & Power
L3 Cache
6 MB
6 MB
TDP
65 W
65 W
Architecture
Architecture
Broadwell
Broadwell
Process Node
14nm
14nm
Memory
Memory Type
DDR3
DDR3
Memory Speed
1600 MT/s
1866 MT/s
Memory Channels
Dual (2)
Dual (2)
Max Memory
32 GB
32 GB
Platform & I/O
Socket
Intel Socket 1150
Intel BGA 1364
PCIe Version
Gen 3
Gen 3
PCIe Lanes
16
16
Integrated GPU
Yes
Yes
Unlocked
Yes
No

Performance Compared

Productivity

Intel Core i7-5775C70

4 cores handle office tasks effortlessly, but lack modern IPC.

Intel Core i7-5775R70

4 cores and high IPC handle office tasks effortlessly.

Gaming

Intel Core i7-5775CBest75

The eDRAM provides incredibly smooth frame times in older games.

Intel Core i7-5775R50

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

Virtualization

Intel Core i7-5775C55

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

Intel Core i7-5775R55

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

Efficiency

Intel Core i7-5775C95

14nm process makes it incredibly power-efficient.

Intel Core i7-5775R95

14nm process makes it incredibly power-efficient.

Specialized Performance

AI / ML

Intel Core i7-5775CLimited
  • No AI hardware
  • eDRAM helps slightly with CPU inference
Intel Core i7-5775RLimited
  • No AI hardware
  • eDRAM helps slightly with CPU inference

Content Creation

Intel Core i7-5775CFair
Basic Photo Editing1080p Video EditingAudio Production
Intel Core i7-5775RFair
Basic Photo Editing1080p Video EditingAudio Production

Gaming

Intel Core i7-5775CVery Good
  • eDRAM reduces stutter in CPU-bound games
  • Iris Pro 6200 good for older games
  • Can be paired with a discrete GPU for better performance
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

Industry Impact

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

Best CPU by Use Case

1080p Gaming (with GPU)
Very Good
Light Gaming (iGPU)
Good
Office Productivity
Excellent
Excellent
Programming
Very Good
Heavy Rendering
Poor
Poor
Light Gaming
Good
4K Media Playback
Excellent
Web Browsing
Excellent

Target Audience

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

Strengths & Weaknesses

Intel Core i7-5775C

Pros

  • 128 MB L4 eDRAM
  • Iris Pro 6200 graphics
  • Drop-in upgrade for LGA 1150
  • Unlocked multiplier

Cons

  • Only 4 cores
  • Supports DDR3 only
  • Expensive on the secondary market
  • Older 14nm process
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

Competitors & Alternatives

Intel Core i7-5775C

Intel Core i7-5775R

Our Verdict on Each

A fantastic drop-in upgrade for LGA 1150 systems. The eDRAM gives it surprising legs in older games, though its CPU performance is outclassed by modern hardware.

Best for: Upgrading an older LGA 1150 system for smooth retro gaming.

Read the full review

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

Frequently Asked Questions

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

Based on our editorial ratings, the Intel Core i7-5775C comes out ahead with a score of 8.5/10. 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 i7-5775C or Intel Core i7-5775R?

For gaming, the Intel Core i7-5775C leads with a gaming performance score of 75/100 among Intel Core i7-5775C and Intel Core i7-5775R.

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

No. They use different sockets (Intel Core i7-5775C: Intel Socket 1150, Intel Core i7-5775R: Intel BGA 1364), so each needs a compatible motherboard.