Although desktop computers are definitely more powerful than laptops, laptops have the advantage of not taking up much space and being easy to move around. For some players who don’t have much space at home, they will definitely be thinking about which one to buy. Is there a huge performance gap between the same graphics card? Recently, foreign media conducted a test of RTX 4090 desktop graphics card vs RTX 4090 laptop graphics card. They actually ran 15 3A game masterpieces, which should give you a good reference. I will summarize them below.
What is the performance difference between RTX 4090 desktop graphics card and RTX 4090 laptop graphics card? The actual test results of 15 games give you answers
RTX 4090 is currently NVIDIA’s most powerful graphics card, whether it is a desktop computer or a laptop. However, the specifications of the two are quite different. In addition, RTX 4090 is available in 150W and 80W versions. For details, please refer to the table compiled by foreign media Techspot below.
There is a big gap in VRAM memory. The RTX 4090 desktop version is up to 24GB, which is still GDDR6X, and has a 384-bit memory interface bandwidth. The notebook version becomes 16GB GDDR6, and 256-bit memory interface bandwidth:
The overclocking clocks are also quite different. The desktop version of the RTX 4090 is 2,520Hz, while the laptop version is 2,040Hz and 1,455Hz. The power consumption is of course no exception. The desktop version is as high as 450W, and the laptop version, even the best RTX 4090, is at most 150~175W. This shows that the performance gap must be quite big.
In any case, it’s best to look directly at actual game testing. Techspot has tested a total of the following 15 games:
- “Dying Light 2: The Battle of Man and Kindness” (including RT)
- “Cyberpunk 2077” (including RT)
- “Horizon: Dawn”
- “Red Dead Redemption 2”
- Call of Duty®: Modern Warfare II 2022
- Forza Horizon 5
- “Assassin’s Creed: Viking Age”
- “Watch Dogs: Legion of Liberty”
- “Thriller Tunnel: Exile”
- “Death Circle”
- “Marvel’s Rangers” (including RT)
- “Assassin’s Mission 3” Dubai
- “Evil Castle: Village”
- “Marvel’s Spider-Man Remastered Edition” (including RT)
- “Far Cry 6” (including RT)
Each game has tested three image qualities: 4K, 1440p and 1080p, and produced individual comparison pictures. I will not sort them out here. Those who are interested can go to the original text to view them. Below is a summary comparison picture of all game quality.
In 4K image quality, “Assassin’s Mission 3” in Dubai has the largest gap. The RTX 4090 desktop version is up to 76.2% faster than the laptop version, with an average of more than 50%. “Far Cry 6” is just a little faster. After RT is enabled, the gap narrows:
The very special thing is that the rankings and performance gaps of each image quality are different. The biggest gap in 1440p is “Dying Light 2: The War of Ren” with RT enabled, and the desktop version is 70.8% faster, followed by “Castle of Evil: Village”, which is 63.3% faster, but overall the gap is not as big as 4K:
Therefore, it is not surprising that in 1080p quality, the RTX 4090 desktop version is only 21% better than the fast laptop version on average:
So overall, the higher the game image quality is, the wider the performance gap between the two will be. Players who will buy RTX 4090 should basically want the image quality and performance to be fully turned on, so desktop computers are definitely the first choice.
Video version, people who don’t want to read the article can also watch this video:
Source: KOCPC Chinese