CPU Comparison

Intel Core i7-5775R vs Core i7-6785R

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.

Top pick
Intel · Core i7
Intel Core i7-5775R
4C / 8T3.8 GHz65 W
8
Full review
Intel · 6th Generation Core i7
Core i7-6785R
4C / 8T3.9 GHz65 W
7.5
Full review

The Bottom Line

Overview & Launch

Brand
Intel
Intel
Market
Desktop
Desktop
Segment
Desktop
BGA Desktop
Generation
Core i7 (Broadwell)
6th Gen
Launched
2015
2016
Status
End-of-life
End-of-life
Codename
Broadwell
Skylake-R
Series
Core i7
6th Generation Core i7
Family
5th Generation
Skylake-R
Predecessor
Intel Core i7-4770R
Core i7-5775R
Successor
Intel Core i7-6700
N/A

Specifications Compared

Cores & Clocks
Cores
4
4
Threads
8
8
Base Clock
3.3 GHz
3.3 GHz
Boost Clock
3.8 GHz
3.9 GHz
Cache & Power
L3 Cache
6 MB
8 MB
TDP
65 W
65 W
Architecture
Architecture
Broadwell
Skylake-R
Process Node
14nm
14nm
Memory
Memory Type
DDR3
DDR4, DDR3L
Memory Speed
1866 MT/s
DDR4-2133, DDR3L-1600
Memory Channels
Dual (2)
Dual (2)
Max Memory
32 GB
64 GB
Platform & I/O
Socket
Intel BGA 1364
Intel BGA 1440
PCIe Version
Gen 3
PCIe 3.0
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 i7-6785R

Gaming

Intel Core i7-5775R50

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

Core i7-6785R

Virtualization

Intel Core i7-5775R55

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

Core i7-6785R

Efficiency

Intel Core i7-5775R95

14nm process makes it incredibly power-efficient.

Core i7-6785R

Specialized Performance

AI / ML

Intel Core i7-5775RLimited
  • No AI hardware
  • eDRAM helps slightly with CPU inference
Core i7-6785R

No data

Content Creation

Intel Core i7-5775RFair
Basic Photo Editing1080p Video EditingAudio Production
Core i7-6785R

No data

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 i7-6785R

No data

Industry Impact

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

Best CPU by Use Case

Light Gaming
Good
4K Media Playback
Excellent
Office Productivity
Excellent
Web Browsing
Excellent
Heavy Rendering
Poor
Compact Media PC
Excellent
Light 1080p Gaming
Good

Target Audience

Gamers
Content Creators
Developers
Targeted
Workstation Users
Streamers
Office / Productivity
Targeted
Targeted
Students
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 i7-6785R

Pros

  • Powerful Iris Pro 580 integrated graphics
  • 128MB eDRAM boosts CPU and GPU performance
  • Low 65W TDP
  • Good 3.9 GHz single-core performance

Cons

  • Soldered BGA package (cannot be upgraded)
  • Hard to source for consumers
  • Only 4 cores
  • Older 14nm process

Competitors & Alternatives

Intel Core i7-5775R

Core i7-6785R

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 i7-6785RSituational

A unique BGA desktop CPU with exceptional integrated graphics for its era. Perfect for small form factor builds where a discrete GPU isn't possible.

Best for: Buying a used NUC or AIO with this chip pre-installed

Read the full review

Frequently Asked Questions

Which is better, Intel Core i7-5775R or Core i7-6785R?

Based on our editorial ratings, the Intel Core i7-5775R comes out ahead with a score of 8/10. 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 i7-6785R?

For gaming, the Intel Core i7-5775R leads with a gaming performance score of 50/100 among Intel Core i7-5775R and Core i7-6785R.

Do Intel Core i7-5775R and Core i7-6785R use the same socket?

No. They use different sockets (Intel Core i7-5775R: Intel BGA 1364, Core i7-6785R: Intel BGA 1440), so each needs a compatible motherboard.

Which is faster in multi-core benchmarks?

The Intel Core i7-5775R posts the highest multi-core benchmark score. Multi-core results: Intel Core i7-5775R (7,000), Core i7-6785R (0). Benchmark figures are approximate and workload-dependent.