2017 14" Dell Latitude 7480 [7th,2C,U] + RTX 3080 @ 32Gbps-TB3 (Razer Core X Chr...
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2017 14" Dell Latitude 7480 [7th,2C,U] + RTX 3080 @ 32Gbps-TB3 (Razer Core X Chroma) + Win10  


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Joined: 1 year ago

System specs 

Screen size: Dell UltraSharp 34 Curved U3419W

CPU: 7th Generation Intel Core i7-7600U (Dual Core, 2.80Gz, 4MB cache)

iGPU: Intel HD Graphics 620

OS: W10


eGPU hardware 

eGPU: Razer Core X Chroma

Card: Zotac gaming Geforce RTX 3080 Trinity OC 10GB 320BIT GDDR6X


Installation steps 

Installation went pretty easy as is mentioned in other posts here. Simply plug in eGPU module into TB3 socket - Razer Synapse (Was installed before) instantly adds this device into system.

After that nvidia drivers must be installed manually.

System notification says eGPU might not work properly during this operation, but everything works fine.

Only problem is that network socket on Razer Core X Chroma stops working when i put a load on the video card.

Also there was a problem with laptop processor colling system - had to install cooling pad, which solved FPS drops.



Benchmarks (Include a  CUDA-Z  or  AIDA64  bandwidth pic. Optional: Valley, 3dmark, noting if it's on internal/external LCD )

CUDA-Z Report
Version: 0.10.251 32 bit http://cuda-z.sf.net/
OS Version: Windows AMD64 6.2.9200
Driver Version: 457.30
Driver Dll Version: 11.10 (
Runtime Dll Version: 6.50

Core Information
Name: GeForce RTX 3080
Compute Capability: 8.6
Clock Rate: 1725 MHz
PCI Location: 0:8:0
Multiprocessors: 68
Threads Per Multiproc.: 1536
Warp Size: 32
Regs Per Block: 65536
Threads Per Block: 1024
Threads Dimensions: 1024 x 1024 x 64
Grid Dimensions: 2147483647 x 65535 x 65535
Watchdog Enabled: Yes
Integrated GPU: No
Concurrent Kernels: Yes
Compute Mode: Default
Stream Priorities: Yes

Memory Information
Total Global: 4096 MiB
Bus Width: 320 bits
Clock Rate: 9501 MHz
Error Correction: No
L2 Cache Size: 48 KiB
Shared Per Block: 48 KiB
Pitch: 2048 MiB
Total Constant: 64 KiB
Texture Alignment: 512 B
Texture 1D Size: 131072
Texture 2D Size: 131072 x 65536
Texture 3D Size: 16384 x 16384 x 16384
GPU Overlap: Yes
Map Host Memory: Yes
Unified Addressing: No
Async Engine: Yes, Unidirectional

Performance Information
Memory Copy
Host Pinned to Device: 2245.87 MiB/s
Host Pageable to Device: 2088.94 MiB/s
Device to Host Pinned: 2641.54 MiB/s
Device to Host Pageable: 2474.43 MiB/s
Device to Device: 184.075 GiB/s
GPU Core Performance
Single-precision Float: 32.6929 Tflop/s
Double-precision Float: 530.439 Gflop/s
64-bit Integer: 3925.95 Giop/s
32-bit Integer: 16.5513 Tiop/s
24-bit Integer: 16.6947 Tiop/s

Generated: Thu Nov 26 11:36:55 2020


Unigine Valley Benchmark 1.0

Min FPS:
Max FPS:


Windows 8 (build 9200) 64bit
CPU model:
Intel(R) Core(TM) i7-7600U CPU @ 2.80GHz (2903MHz) x2
GPU model:
Intel(R) HD Graphics 620 GeForce RTX 3080 (4095MB) x1


2560x1440 8xAA fullscreen
Powered by UNIGINE Engine




Gaming LoL - from low details to full

Workflow - eGPU is a must for big data operations, untill now i had to use cloud services (Example benchmark - wpa2 hashcracking goes from 3,5 hours (CPU)  to 14s (GPU)), also system runs more smoothly with such a big display.

Some says it is better to use external monitor plugged right in the eGPU so you dont send data back into laptop (More bandwidth left for GPU).

Dell hotline said it will never work... 

2017 14" Dell Latitude 7480 [7th,2C,U] + RTX 3080 @ 32Gbps-TB3 (Razer Core X Chroma) + Win10 [build link]  

mr.ribeiro and nando4 liked
Noble Member Admin
Joined: 5 years ago

@cardoelle, thank you for your build. Would you like to include some photos so we can see your eGPU in action?

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

2015 15" Dell Precision 7510 (Q M1000M) [6th,4C,H] + GTX 1080 Ti @32Gbps-M.2 (ADT-Link R43SG) + Win10 1803 // compares M.2 vs TB3 performance inc unoptimized H-CPU BIOS [build link]  

New Member
Joined: 1 year ago

@nando4, Im affraid that im too lazy to clean my table. Sorry for that :(.


2017 14" Dell Latitude 7480 [7th,2C,U] + RTX 3080 @ 32Gbps-TB3 (Razer Core X Chroma) + Win10 [build link]