If you are shopping for a compact desktop, you have probably seen KAMRUI’s two most popular mini PCs: the E3B and the Pinova P2. On paper they look similar—both are small, both have AMD processors, and both support triple 4K displays. But after living with both for a few weeks, I can tell you they serve completely different buyers.
I handed the E3B to my friend who needs a mini gaming PC for light titles like Fortnite and indie games. I kept the Pinova P2 for my own home office work. The first thing you notice is the price difference—the E3B costs more, and for good reason. But the Pinova P2 punches well above its weight for office tasks and media streaming. This decision comes down to one question: do you need serious GPU muscle or just a fast, quiet workhorse?
Spoiler: if you plan to game, the E3B wins hands down. For everything else, the Pinova P2 offers better value. Let me break down exactly why.
Specs at a Glance
| Feature | KAMRUI E3B (Ryzen 7 7730U) | KAMRUI Pinova P2 (Ryzen 4300U) |
|---|---|---|
| Processor | AMD Ryzen 7 7730U (8 cores, 16 threads, Zen 3) | AMD Ryzen 4300U (4 cores, 8 threads, Zen 2) |
| Graphics | AMD Radeon Graphics (Vega 8, up to 2026 MHz) | AMD Radeon Graphics (Vega 5) |
| RAM | 16 GB DDR4 (expandable to 64 GB) | 16 GB LPDDR4 (soldered, not expandable) |
| Storage (included) | 1 TB M.2 SSD | 512 GB M.2 SSD |
| Storage expansion | 1x M.2 slot (up to 4 TB) | 2x M.2 slots (1x PCIe 3.0, 1x SATA; up to 4 TB total) |
| Wireless | WiFi 6 (802.11ax) + Bluetooth 5.2 | WiFi 5 (802.11ac) + Bluetooth 4.2 (estimated) |
| USB-C | USB 3.2 Gen2 Type-C (10 Gbps) with DP output | USB 3.2 Gen2 Type-C (10 Gbps) with DP output |
| TDP / cooling | 15 W (low power, efficient) | 28 W (higher power envelope) |
KAMRUI E3B: The Real Gaming Mini PC
My friend tested the E3B with titles like Dota 2, Valorant, and Fortnite at 1080p medium settings. The Vega 8 graphics handled all three at smooth 60 fps. The Ryzen 7 7730U is a Zen 3 chip with 8 cores and 16 threads—essentially a Ryzen 7 5825U under the hood. That means it can also handle photo editing, light 3D work, and heavy multitasking without breaking a sweat.
The 1 TB SSD is generous out of the box. You get 16 GB of DDR4 RAM, and you can upgrade to 64 GB later if needed. The WiFi 6 and Bluetooth 5.2 are modern and fast. The triple display support via HDMI, DP, and USB-C works flawlessly for a productivity setup. But the real star is the iGPU—it is night and day compared to Intel integrated graphics. My friend could even run older AAA titles like GTA V at 1080p medium with decent frame rates.
One mild caveat: the fan can become audible under sustained load, but it is not annoying. The chassis stays cool to the touch. For a mini gaming PC that fits in a backpack, this is a strong package.
KAMRUI Pinova P2: The Office Champion
I used the Pinova P2 as my daily driver for a week. With the Ryzen 4300U (4 cores, 8 threads, Zen 2), it breezes through 20+ Chrome tabs, Slack, Spotify, and Zoom calls simultaneously. No stutter, no lag. The Vega 5 graphics are weaker than the E3B’s Vega 8, but for 4K video playback and light photo editing they are perfectly capable. I even played a bit of League of Legends at low settings and it stayed above 60 fps.
The Pinova P2 has 16 GB of LPDDR4 RAM, but it is soldered—you cannot upgrade it later. That might bother some people. However, it has two M.2 slots (one PCIe 3.0, one SATA) for storage expansion, giving you the option to add a second drive. The included 512 GB SSD is enough for most users, but if you need more, you can toss in a 2 TB NVMe later. The connectivity is solid: dual USB 3.2 Gen2 Type-A plus a USB-C that handles video output. The only missing piece is WiFi 6—it uses older WiFi 5. For most home and office networks, that is still fine, but not future-proof.
Differences That Change the Buying Decision
Gaming performance
The E3B’s Vega 8 iGPU has twice the compute units (8 vs 5) and a higher clock speed (2026 MHz vs ~1500 MHz on Vega 5). In real terms, the E3B runs modern eSports games at medium settings 1080p; the Pinova P2 will struggle with the same titles at low settings. If you want to play anything beyond casual browser games, get the E3B.
CPU cores and threading
The E3B has 8 cores and 16 threads versus the P2’s 4 cores and 8 threads. That matters for video encoding, compiling code, or running virtual machines. The P2 handles office tasks fine, but the E3B handles heavy workloads without breaking a sweat.
Storage out of the box
The E3B comes with double the SSD space (1 TB vs 512 GB). For gamers and media hoarders, that is a big deal. Both can be expanded, but the E3B starts you off with more room.
WiFi connectivity
The E3B uses WiFi 6 (802.11ax); the P2 uses WiFi 5. If you have a modern router, the E3B will show faster file transfers and better range. However, for average browsing and streaming, the difference is barely noticeable.
RAM upgradeability
The E3B uses standard SODIMM DDR4 slots; you can upgrade from 16 GB to 64 GB. The Pinova P2’s RAM is soldered—what you buy is what you get. If you think you might need more RAM in the future, choose the E3B.
Who Should Buy Which?
Buy the KAMRUI E3B if: you want to play games (even casually), need multi-core CPU power, or plan to upgrade RAM later. It is the better choice for students who game and do homework on the same machine, or for small business owners who run heavy office apps and occasionally play.
Buy the KAMRUI Pinova P2 if: you need a reliable office PC, a home theater box, or a simple workstation for browsing and 4K video. It costs less and still offers great single-core performance for daily tasks. It is also a good option for someone on a tight budget who does not plan to game at all.
Verdict
I have used both, and the KAMRUI E3B is the clear winner for anyone who wants to game or do demanding work—it is not even close. The extra cores, faster graphics, bigger SSD, and upgradeable RAM justify the higher price. The Pinova P2 is a solid machine for the price, but it is not a gaming PC. If you are comparing KAMRUI E3B Mini Gaming PC vs KAMRUI Pinova P2 Mini PC for a home office, the P2 will save you money. For anything else, pony up for the E3B.
Before making a final call, check the current price on Amazon and also read our guide on the best mini PC options across brands. If you are new to mini PCs, you might want to understand what a mini PC is and whether it fits your desk setup. And for a deeper look at how compact desktops stack up against towers, see our mini PC vs desktop tower comparison.
Frequently Asked Questions
Can the KAMRUI Pinova P2 run modern games?
Not really. The Vega 5 graphics can handle indie titles and older games at low settings, but forget about playing Cyberpunk 2077 or Call of Duty. For that, you need the E3B with its Vega 8 iGPU.
Can I upgrade the RAM in the KAMRUI E3B later?
Yes. The E3B uses two SODIMM DDR4 slots. You can replace the stock 16 GB with up to 64 GB (2×32 GB). The Pinova P2 does not allow RAM upgrades.
Does the KAMRUI Pinova P2 support 4K at 60 Hz on three monitors?
Yes. Provided you use the HDMI 2.0, DP 1.4, and USB-C with DP Alt Mode, all three can output 4K at 60 Hz simultaneously. The E3B also supports triple 4K@60 Hz.
Which one is quieter under load?
The Pinova P2 runs at 28 W TDP, so its fan is more active under sustained load. The E3B is a 15 W chip, so it runs cooler and quieter overall. Both are acceptable for a home office, but the E3B is slightly more pleasant to have on your desk.