CPU Comparison
Intel Core i7-6850K vs Intel Core i7-7740X
A side-by-side comparison of specs, performance and value. The Intel Core i7-6850K is a six-core, 12-thread high-end desktop processor on the X99 platform, featuring 40 PCI Express 3.0 lanes, quad-channel DDR4-2400 memory support, and an unlocked multiplier.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Strong multi-core performance for its generation, adequate for many creator workloads if overclocked.
Quad-core limits performance in heavily parallelized applications compared to higher core-count alternatives.
Gaming
Handles modern games paired with a strong GPU, but newer mainstream CPUs offer higher frame rates and better efficiency.
Paired with a strong discrete GPU, the high clocks enable smooth high-refresh gaming, though newer platforms offer better efficiency and future-proofing.
Virtualization
40 PCIe lanes and VT-x/VT-d support make it practical for lab and VM setups.
Adequate for light VM workloads, but limited core count and memory channels make it less suitable for heavy virtualization.
Efficiency
High 140 W TDP and 14 nm process result in notable power draw versus modern alternatives.
112 W TDP for a quad-core results in higher power draw per core than many modern designs.
Specialized Performance
AI / ML
- No dedicated AI acceleration hardware; runs only CPU-based inference.
- AVX2 support helps with some vectorized compute workloads.
- No dedicated AI acceleration hardware
- Suited only for CPU-bound inference and older ML frameworks
Content Creation
Gaming
- Base and turbo clocks are sufficient for high-refresh gaming with a capable GPU.
- PCIe 3.0 x16 remains viable for current graphics cards.
- Gaming performance is limited by older IPC and DDR4-2400 compared to newer platforms.
- Strong single-threaded core performance keeps frame rates competitive in many titles
- Best paired with mid-to-high-end discrete GPUs
- Modern gaming CPUs with more cores and faster memory often deliver better 1% lows
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Six cores and 12 threads
- 40 PCIe 3.0 lanes
- Quad-channel DDR4-2400
- Unlocked multiplier with Turbo Boost Max 3.0
- Strong I/O expansion for multi-GPU/NVMe
- VT-x and VT-d support for virtualization
Cons
- No integrated graphics
- High 140 W TDP
- Discontinued platform with limited future upgrade path
- Lower memory speed limit (DDR4-2400)
- Not on official Windows 11 supported processor list
Pros
- High out-of-box clocks
- Unlocked for overclocking
- X299 platform offers flexible chipset PCIe lanes and storage options
- Strong single-threaded performance for its era
- Can breathe life into idle LGA2066 boards
Cons
- Quad core count limits multi-threaded performance
- Only 16 CPU PCIe lanes
- No integrated graphics
- 112 W TDP for four cores is relatively power-hungry
- Platform is discontinued with limited future upgrade options
Competitors & Alternatives
Intel Core i7-6850K
- AMD Ryzen 7 1800XRival
Creator
- AMD Ryzen 5 1600XRival
Mainstream
- Intel Core i7-7700KRival
Gaming
- Compare head-to-headIntel Core i7-5820KRival
Workstation
- RivalCompare head-to-head
Much faster gaming and creator performance on a newer platform with upgrade options.
Compare head-to-head- AMD Ryzen 9 5900XAlt
Significantly higher multi-core performance and efficiency on AM4.
- AMD Ryzen 7 5800XAlt
Strong single and multi-threaded performance for gaming and productivity.
- Intel Core i7-14700KAlt
Modern high-performance option with DDR5 and PCIe 5.0 support.
Intel Core i7-7740X
- AMD Ryzen 5 1600XRival
Gaming & Productivity
- AMD Ryzen 7 1700Rival
Creator
- Intel Core i7-7700KRival
Gaming
- Intel Core i5-7640XRival
Gaming
- Intel Core i7-7820XRival
Workstation
- Intel Core i7-8700KAlt
More cores and better value for gaming and productivity.
- AMD Ryzen 7 2700XAlt
Higher multi-threaded performance and efficiency.
- Intel Core i9-9900KAlt
Strong all-round performance on mainstream platforms.
- Intel Core i7-9700KAlt
More cores and newer platform features.
- AMD Ryzen 5 3600Alt
Much better performance per watt and platform longevity.
Our Verdict on Each
A capable HEDT chip with strong multi-threaded performance and plentiful I/O for its time, but high power draw and a discontinued platform make it relevant mainly as a budget used upgrade.
Best for: Upgrade for existing X99/LGA2011-v3 systems seeking more cores or PCIe lanes at low cost.
Read the full reviewA niche, high-clock quad-core for X299 that delivers strong single-threaded performance but lacks the PCIe and memory bandwidth of Skylake-X siblings, making sense only at low prices for specific reuse scenarios.
Best for: Reusing an existing LGA2066 board for gaming or general tasks when the CPU is acquired at very low cost.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i7-6850K or Intel Core i7-7740X?
Based on our editorial ratings, the Intel Core i7-6850K comes out ahead with a score of 7.4/10. 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 i7-6850K or Intel Core i7-7740X?
For gaming, the Intel Core i7-7740X leads with a gaming performance score of 78/100 among Intel Core i7-6850K and Intel Core i7-7740X.
Which uses less power?
The Intel Core i7-7740X has the lowest rated TDP. Power draw across these chips: Intel Core i7-6850K (140 W), Intel Core i7-7740X (112 W).
Do Intel Core i7-6850K and Intel Core i7-7740X use the same socket?
No. They use different sockets (Intel Core i7-6850K: LGA2011-v3, Intel Core i7-7740X: LGA2066), so each needs a compatible motherboard.
Which has more cores?
The Intel Core i7-6850K has the most cores. Core counts: Intel Core i7-6850K (6 cores), Intel Core i7-7740X (4 cores).