CPU Comparison
Intel Core i3-10350K vs Intel Core i7-7740X
A side-by-side comparison of specs, performance and value. The Intel Core i3-10350K holds a unique place in CPU history as the first-ever unlocked "K-series" processor in the Core i3 lineup. Released in April 2020 as part of the 10th-generation Comet Lake desktop family, it broke the traditional barrier that reserved overclocking for i5, i7, and i9 tiers. Featuring 4 cores and 8 threads, it launched with an aggressive 4.1 GHz base clock and a 4.8 GHz boost clock. Built on the 14nm process, it carried a 91W TDP and required robust cooling to maintain those high frequencies, especially when overclocked. It utilized the LGA 1200 socket and, to take advantage of its unlocked multiplier, required a Z490 motherboard. While it included the UHD Graphics 630 iGPU, it was clearly targeted at budget-conscious gamers and enthusiasts who wanted to pair it with a dedicated graphics card and push silicon limits without spending i5 money. Its introduction marked a significant shift in Intel's segmentation strategy, acknowledging the growing demand for affordable enthusiast hardware in an increasingly competitive market landscape.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Fast at single-threaded tasks due to high clocks, but the 4-core limit will bottleneck heavy productivity workloads.
Quad-core limits performance in heavily parallelized applications compared to higher core-count alternatives.
Gaming
When paired with a good GPU and overclocked, it can deliver solid 1080p gaming frame rates, though 4 cores are starting to show their age in modern titles.
Paired with a strong discrete GPU, the high clocks enable smooth high-refresh gaming, though newer platforms offer better efficiency and future-proofing.
Virtualization
8 threads are usable, but the platform cost makes it a poor choice for a homelab compared to AMD alternatives.
Adequate for light VM workloads, but limited core count and memory channels make it less suitable for heavy virtualization.
Efficiency
Overclocking destroys efficiency. At stock 91W, it draws more power than a 6-core Ryzen 5 3600 that outperforms it.
112 W TDP for a quad-core results in higher power draw per core than many modern designs.
Specialized Performance
AI / ML
- No AI acceleration
- AVX-512 is not supported
- Not suitable for AI workloads
- No dedicated AI acceleration hardware
- Suited only for CPU-bound inference and older ML frameworks
Content Creation
Gaming
- High clock speeds benefit eSports titles significantly
- Modern AAA games will be limited by the 4-core count
- Requires a dedicated GPU; the UHD 630 is useless for gaming
- Overclocking can squeeze out extra frames
- 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
- First ever unlocked i3, historic milestone
- Massive overclocking headroom on air and water
- Very high 4.8 GHz stock boost clock
- Fun platform for learning BIOS tuning
- No power limits out of the box
Cons
- Requires an expensive Z490/Z590 motherboard
- More expensive platform total than a faster i5-10400F
- Only 4 cores limit modern gaming and productivity
- DDR4-2666 memory speed cap
- High power draw when overclocked
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 i3-10350K
- AMD Ryzen 3 3300XRival
Budget Gaming
- AMD Ryzen 5 3600Rival
Mid-Range Gaming
- Compare head-to-headIntel Core i5-10400FRival
Budget Gaming
- AMD Ryzen 5 1600 AFRival
Budget Gaming
- Compare head-to-headIntel Core i5-10600KRival
Mainstream Overclocking
If you want to overclock, this 11th-gen part offers 6 cores and PCIe 4.0.
Compare head-to-head- AMD Ryzen 5 5600Alt
Vastly superior modern gaming performance on a budget-friendly AM4 platform.
Better stock gaming performance than the 10350K without needing an expensive Z-series motherboard.
Compare head-to-head
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
- Compare head-to-headIntel Core i7-7820XRival
Workstation
More cores and better value for gaming and productivity.
Compare head-to-head- AMD Ryzen 7 2700XAlt
Higher multi-threaded performance and efficiency.
Strong all-round performance on mainstream platforms.
Compare head-to-headMore cores and newer platform features.
Compare head-to-head- AMD Ryzen 5 3600Alt
Much better performance per watt and platform longevity.
Our Verdict on Each
A fun and historic overclocking chip, but practically outclassed by cheaper locked i5 processors in stock performance.
Best for: The Intel Core i3-10350K is a processor you should only buy if you are specifically interested in overclocking as a hobby. If your goal is pure gaming or productivity performance per dollar, this chip is a poor choice. Because it requires an expensive Z490 or Z590 motherboard to utilize its unlocked multiplier, the total platform cost far exceeds that of a locked i5-10400F on a cheap B460 board, which will outperform it in any multi-threaded workload. Furthermore, the DDR4-2666 memory speed limit severely hampers its integrated graphics performance, though this is irrelevant if you are pairing it with a discrete GPU. If you are an enthusiast who wants to delve into BIOS tuning, voltage adjustments, and manual overclocking without spending i7 or i9 money, the 10350K remains a highly entertaining sandbox. Otherwise, look toward modern alternatives.
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 i3-10350K or Intel Core i7-7740X?
Based on our editorial ratings, the Intel Core i7-7740X comes out ahead with a score of 7/10. 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 i3-10350K or Intel Core i7-7740X?
For gaming, the Intel Core i7-7740X leads with a gaming performance score of 78/100 among Intel Core i3-10350K and Intel Core i7-7740X.
Which uses less power?
The Intel Core i3-10350K has the lowest rated TDP. Power draw across these chips: Intel Core i3-10350K (91 W), Intel Core i7-7740X (112 W).
Do Intel Core i3-10350K and Intel Core i7-7740X use the same socket?
No. They use different sockets (Intel Core i3-10350K: LGA 1200, Intel Core i7-7740X: LGA2066), so each needs a compatible motherboard.
Which is faster in multi-core benchmarks?
The Intel Core i3-10350K posts the highest multi-core benchmark score. Multi-core results: Intel Core i3-10350K (0). Benchmark figures are approximate and workload-dependent.