Asrock 4x4 Box 7840U
Asrock

4x4 Box 7840U

CPU r7 7840U
GPU RDNA3 780M
Max RAM 64GB
Drives 2
From $570
Seller Newegg

The Asrock 4x4 Box 7840U is a mini PC powered by the AMD r7 7840U (Zen 4 gen). It features 8 performance cores and 16 threads and a soldered CPU. Graphics are handled by the integrated AMD RDNA3 780M. Supports up to 64GB of RAM across 2 slots at 5600 MT/s. Storage capacity of up to 2 drives including 1 NVMe, 1× 2.5" SATA. Connectivity includes USB4 40Gbps. Networking features 2 Ethernet ports (up to 2.5G). Dimensions: 118 × 110 × 48mm (0.62L). Uses a Brick PSU (120W), 15W TDP.

CPU & Performance

CPUr7 7840U
GenerationZen 4
P-Cores8
Threads16
Single-core71
Multi-core37
Socket0

GPU

GPURDNA3 780M
Discrete GPUNo
Integrated GPUYes
eGPU supportNo
iGPU FP324300

RAM

Max RAM64GB
RAM slots2
Max speed5600 MT/s
ECC supportNo

Storage

Max drives2
NVMe slots1
Gen4 x41
2.5" SATA1
SD cardNo

Ports & Connectivity

USB4 40Gbps1
Max displays4

Network

Max Ethernet2G
2.5G ports1
1G ports1
vProN

Physical

Dimensions118 × 110 × 48 mm
Volume0.62L
Fan size80mm
Warranty1 yr

Power

TDP15W
PSU typeBrick
PSU120W

Additional

Recommended for productivity, software development, multitasking, media use, light gaming, larger multitasking workloads, and very small desk setups. Consider Asrock 4x4 Box 7840U if you want a ultra-compact mini PC built around its listed AMD r7 7840U processor and AMD RDNA3 780M integrated GPU. It is less suitable for heavy gaming than models with a discrete GPU, but the listed expansion and integrated graphics options make it flexible for everyday workloads.

Asrock 4x4 Box 7840U features AMD r7 7840U with AMD RDNA3 780M integrated GPU, offering 1× 2.5G Ethernet and 1× 1G Ethernet and USB4. CPU details include Zen 4 CPU generation, 8 performance cores, and 16 threads. Memory support includes up to 64GB RAM across 2 slots at 5600 MT/s. Storage support includes up to 2 storage drives including 1 NVMe SSD slot, 1× PCIe Gen4 x4 NVMe, and 1× 2.5-inch SATA bay. Display support includes support for up to 4 displays. Port connectivity includes 1× USB4 40Gbps. Networking includes 1× 2.5G Ethernet and 1× 1G Ethernet. Physical design includes a 118 × 110 × 48 mm chassis (0.62L). Cooling information lists 80 mm main fan. Power information lists Brick power supply rated at 120W and 15W TDP. Lifecycle information lists 1-year warranty and release date listed as 23-Oct-2023.

Based on its overall score of 287.7, Asrock 4x4 Box 7840U is positioned as a solid midrange mini PC entry in this dataset; compare it against alternatives by CPU class, GPU type, memory ceiling, storage expansion, LAN, and port selection.

Verdict

Best for

productivity, light gaming, media editing, multitasking, developer workloads.

Avoid if

you need modern AAA gaming or sustained GPU rendering.

Alternatives
  • Geekom A6 — better value at comparable performance
  • GMKtec/Morefine Nucbox K11 4090M — higher performance ceiling
  • CWWK/Topton 1245U 8x2.5G — stronger wired networking for homelab use

Review

The Asrock 4x4 Box 7840U is a ultra-compact mini PC built around AMD r7 7840U and AMD RDNA3 780M integrated graphics. With a listed price around $570, it is aimed at buyers looking for productivity, light gaming, media editing, multitasking, developer workloads. The core spec sheet is solid for its class: up to 64GB RAM across 2 slots at 5600 MT/s, up to 2 drives, including 1 NVMe slot (1 PCIe 4.0 x4 NVMe, 2.5-inch SATA), 1×2.5GbE + 1×1GbE, and 1 USB4 40Gbps. The 287.7 overall score positions it as a practical midrange choice, so the appeal depends heavily on street price and the exact configuration. The listed release date is 23-Oct-2023. The main reason to pause is fit: avoid it if you need modern AAA gaming or sustained GPU rendering. Overall, the Asrock 4x4 Box 7840U makes the most sense when its CPU/GPU balance, port selection, and expansion profile match your workload; otherwise, compare it against similarly priced mini PCs with better networking, quieter cooling, or stronger upgrade paths.

Notes

Two USB4 half speed ports because they can only do 4k 60hz and not 8k 60hz

Discover More

Asrock DeskMini B660W 14700
Asrock

DeskMini B660W 14700

CPU
Intel i7 14700
GPU
Intel Intel UHD 770
Cores
8P / 28T
RAM
64GB / 2 slots · 3200 MT/s
Storage
4 (2× NVMe) · 2×2.5"
LAN
1× 1G
Size
155×155×80mm · 1.92L
Brick $600
HP EliteDesk 805 G6
HP

EliteDesk 805 G6

CPU
AMD r5 4650GE
GPU
AMD Vega 7
Cores
6P / 12T
RAM
64GB / 2 slots · 3200 MT/s
Storage
3 (2× NVMe) · 1×2.5"
LAN
1× 2.5G
Size
177×175×34mm · 1.05L
Brick $225
Apple Mac mini M4 Pro 12-Core 64GB 8TB
Apple

Mac mini M4 Pro 12-Core 64GB 8TB

CPU
Apple ARM M4 Pro 12 Core
GPU
Apple M4 Pro 16-core
Cores
8P / 12T
RAM
64GB · 8533 MT/s
LAN
1× 1G
Size
127×127×50mm · 0.81L
Custom $3,410
Maxtang MTN-ALN50 1240P
Maxtang

MTN-ALN50 1240P

CPU
Intel i5 1240P
GPU
Intel Iris Xe 80EU
Cores
4P / 16T
RAM
64GB / 2 slots · 4800 MT/s
Storage
2 (1× NVMe) · 1×2.5"
LAN
2× 2.5G
Size
130×128×52mm · 0.87L
$370
AceMagic M1A Tank 03 12900H 4060
AceMagic

M1A Tank 03 12900H 4060

CPU
Intel i9 12900H
GPU
NVIDIA Mobile 4060
Cores
6P / 20T
RAM
64GB / 2 slots · 4800 MT/s
Storage
3 (2× NVMe)
LAN
2× 2.5G
Size
175×160×159mm · 4.45L
Brick $940
Geekom A8 8945HS Fan Mod
Geekom

A8 8945HS Fan Mod

CPU
AMD r9 8945HS/7940HS
GPU
AMD RDNA3 780M
Cores
8P / 16T
RAM
64GB / 2 slots · 5600 MT/s
Storage
2 (1× NVMe)
LAN
1× 2.5G
Size
112×112×50mm · 0.63L
GaN/Brick $330
AWOW NY41 J4125
AWOW

NY41 J4125

CPU
Intel Celeron J4125
GPU
Intel Intel UHD 600
Cores
–P / 4T
MSI Cubi NUC 13MQ 1365U
MSI

Cubi NUC 13MQ 1365U

CPU
Intel i7 1365U
GPU
Intel Iris Xe 96EU
Cores
2P / 12T
RAM
64GB / 2 slots · 5200 MT/s
Storage
4 (2× NVMe) · 1×2.5"
LAN
2× 2.5G
Size
136×133×50mm · 0.9L
Brick