💪 CPU Battle #38 Core i7 13620H vs Ryzen 7 7735HS 💪
CPU Battle #38 — Core i7 13620H vs Ryzen 7 7735HS
These two chips sit in the mid-range gaming and productivity laptop segment. The Core i7-13620H is Intel’s 2023 Raptor Lake mobile chip — 10 cores, 16 threads, and a hybrid P-core/E-core design. The Ryzen 7 7735HS is AMD’s 2023 refresh of the 6800HS — 8 cores, 16 threads, Zen 3+, with a stronger iGPU. Both are common in $900–1,400 laptops, and both handle gaming, productivity, and content creation. The choice comes down to CPU grunt versus GPU performance and efficiency.
Short version: The 13620H wins in multi-threaded CPU work. The 7735HS wins in iGPU gaming, efficiency, and battery life. For gaming laptops with a discrete GPU, the 13620H’s CPU lead matters more. For thin-and-light without a dGPU, the 7735HS is the better pick.
Specs
The i7-13620H is Raptor Lake on Intel 7. It has 10 cores — 6 P-cores with hyper-threading plus 4 E-cores — for 16 threads total. Boost is 4.9 GHz on P-cores. 24 MB L3 cache. UHD Graphics (only 64 EUs — a cut-down version). 45W base TDP with 115W max turbo.
The Ryzen 7 7735HS is Zen 3+ on TSMC 6nm. It has 8 cores, all Zen 3+, with 16 threads. Boost is 4.75 GHz. 16 MB L3 cache. Radeon 680M iGPU with 12 RDNA 2 CUs — significantly more powerful than Intel’s UHD. 35–54W TDP depending on the laptop.
| Spec | i7-13620H | Ryzen 7 7735HS |
|---|---|---|
| Cores / Threads | 10 / 16 (6P + 4E) | 8 / 16 |
| Boost clock | 4.9 GHz | 4.75 GHz |
| L3 cache | 24 MB | 16 MB |
| Process | Intel 7 | TSMC 6nm |
| iGPU | UHD (64 EU) | Radeon 680M (12 CU) |
| TDP | 45W (115W max) | 35–54W |
The 13620H has more cores; the 7735HS has a much stronger iGPU and a more efficient architecture. The UHD graphics on the 13620H is a cut-down version — only 64 EUs instead of the 96 found on higher-end Raptor Lake chips. That makes the 7735HS’s iGPU advantage even larger.
CPU performance
Multi-threaded performance favors the 13620H. Its 10 cores and 16 threads, with higher boost clocks and more L3 cache, give it roughly 10–20% more throughput in Cinebench and Blender. The gap is largest in workloads that can use all cores.
Single-threaded performance also favors Intel slightly — 4.9 GHz versus 4.75 GHz. The difference is 5–10%.
The 7735HS is competitive but behind in CPU. For productivity, the 13620H wins.
Gaming performance
With a discrete GPU, the 13620H’s CPU lead translates to a small edge — 5–10% in most games, more in CPU-bound titles. Both chips feed a mid-range dGPU (RTX 4050, 4060) well, and the difference is often negligible at 1080p.
Without a discrete GPU, the 7735HS wins clearly. Its Radeon 680M is 2–3x faster than the 13620H’s cut-down UHD graphics. Games that are unplayable on the Intel iGPU run fine on the AMD one at 1080p low-to-medium.
For thin-and-light gaming laptops with no dGPU, the 7735HS is the better chip. For laptops with a dGPU, the 13620H’s CPU advantage makes it the better pick.
Efficiency and battery life
The 7735HS is more efficient. Its Zen 3+ architecture on TSMC 6nm delivers better performance-per-watt than Intel 7. Under light load, the AMD chip draws less power and lasts longer on battery.
The 13620H is still decent — Raptor Lake mobile improved efficiency over previous generations — but it’s 15–25% behind in performance-per-watt. In thin-and-light laptops where battery life matters, the 7735HS is the better choice.
Both chips can draw significant power under load (up to 115W for Intel, 54W for AMD). The Intel chip’s peak power draw is higher, which matters for cooling in thin chassis.
Platform and memory
Both support DDR5 and LPDDR5 memory, and both are BGA-soldered — no upgrade path. Both have PCIe 4.0. Neither has a meaningful platform advantage.
The 13620H supports Thunderbolt 4 (on Intel-based laptops). The 7735HS supports USB4 (on AMD-based laptops). Both offer modern connectivity.
For most buyers, the platform is decided by the laptop OEM, not the chip.
Software and compatibility
Both chips have broad compatibility with Windows software, games, and productivity apps. Intel has slightly broader support in some professional tools; AMD is competitive in most.
Intel’s UHD graphics has weaker driver support for gaming than AMD’s Radeon 680M — another point for AMD in iGPU-only laptops.
For mainstream use, both work well. The differences are subtle.
Price and availability
Both chips appear in mid-range laptops from $900 to $1,400. The 13620H is more common in gaming laptops with dGPUs; the 7735HS appears in a mix of gaming laptops and premium thin-and-lights.
Prices are close. The 7735HS often appears in slightly cheaper configurations, but not always.
The verdict
The 13620H is the better CPU for productivity and for gaming laptops with a discrete GPU. Its 10 cores and 16 threads deliver more multi-threaded performance, and its single-threaded edge helps in games.
The 7735HS is the better chip for thin-and-light laptops without a discrete GPU. Its Radeon 680M iGPU is dramatically faster, its efficiency is better, and its battery life is longer.
The decision comes down to whether the laptop has a discrete GPU. With a dGPU, the 13620H wins. Without one, the 7735HS wins.
Short version:
Choose the Core i7-13620H if you’re buying a gaming laptop with a discrete GPU and want the best CPU performance.
Choose the Ryzen 7 7735HS if you’re buying a thin-and-light laptop without a dGPU and want better iGPU gaming, efficiency, and battery life.
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