Comparing all RTX 4070s: What’s the Real Difference Between 65W, 105W, 120W, and 140W TGP, and Should You Invest More Money?

If you’re looking for a powerful laptop graphics card, one of the best options is the GeForce RTX 4070. However, as you’ve seen in our Top Laptop Graphics Ranking, not all RTX 4070s are created equal, as they can have different power limits depending on the laptop model. The GPU is found in so many laptops this year, from thin and light office workstations to beefy gaming models that need someone like Arnold to carry them around.

Today, we’ll compare the RTX 4070s with different TGPs and see how dependent they are on their power limit, as well as synthetic benchmark performance and gaming performance. We’ll also check how they handle GPU stress tests and see which can really take the heat for long. So far we’ve tested the 65W, the 105W, the 120W, and the 140W version of the GPU, so it’ll be interesting to see what’s the real difference between them.

We’ll also make sure to keep the article updated, in case we come across more 4070 laptops with TGPs that we haven’t tested before. So let’s get started and see which RTX 4070 version is the best for you!

Contents


GPU specs, contestants

NVIDIA GeForce RTX 4070 Specs

SpecificationDetails
Manufacturing Process4 nm
ArchitectureAda Lovelace
Base Frequency1230 MHz
Memory TypeGDDR6
Memory Frequency2000 MHz
Memory Bandwidth266 GB/sec
ReleasedQ1 2023
Power Consumption40 – 140W
Cores4608
Maximum Frequency2175 MHz
Memory Capacity8 GB
Memory Bus128-bit
Driverswww.nvidia.com
Supported TechnologiesDLSS 3 (Super Resolution + Frame Generation), NVIDIA Reflex, PCI Express Gen 4, Resizable BAR, NVIDIA GPU Boost, Vulkan 4.6, 5th Generation NVIDIA Decoder, DirectX 12 Ultimate

Meeting the contestants

The 65W RTX 4070 sits inside the ASUS ROG Flow Z13. We had the special ACRNM edition, which comes with a more rugged design and straps that attach, so the Z13 can be carried like a bag, however, the regular model is just as good. It pairs the 4070 with a Core i9-13900H, so the cooling there has to be something special, otherwise, throttling will be a concern.

Next is the MSI Stealth 16 Studio, which offers a 105W version of the RTX 4070. It’s a bigger laptop with potent cooling, so expect good results from it. Also, with a Core i7-13700H, there’ll be no bottlenecking when it comes to performance. The Studio part refers to the screen and the overall sleeker aesthetic. This is a badass machine for the best video editors, designers, and cinematographers.

For the 120W version of the GPU, we have the largest and probably most powerful convertible on the market right now. The ASUS ROG Flow X16 is a crazy device, with a 16:10 QHD screen that’s super crisp and has amazing colors. Of course, it also carries a Core i9-13900H, as the H-series are now found in pretty much any laptop, regardless of the form factor or cooling capacity.

The most powerful 4070 variant, the 140W model, we have the 16-inch Lenovo Legion Slim 7i, probably one of the best-cooled laptops on the market. You’ll see how it does under full load a bit further into the analysis.


GPU benchmarks

We’ve prepared four benchmarks. Starting with 3DMark Time Spy, the 140W 4070 is only 36% faster than the 65W version, despite having more than double the TGP. As for the 105W and 120W versions, they appear to have pretty much identical scores, as the difference of 1% is negligible. Moving into the Fire Strike benchmark, the 105W card is 5% faster than the 120W GPU, while also being super close to the 140W version. As for the Wild Life benchmark, this time the 120W card is the fastest overall, beating out the 105W and 140W cards. Lastly, in Unigine Superposition, the 105W card is the fastest, although by the slimmest of margins.

Gaming tests

For Metro Exodus, there is a 9 fps jump at the extreme preset from the 65W card to the 120W card, which is significant.

Metro ExodusFull HD, Low (Check settings)Full HD, High (Check settings)Full HD, Extreme (Check settings)
RTX 4070 (Laptop, 65W)158 fps83 fps42 fps
RTX 4070 (Laptop, 105W)183 fps (+16%)100 fps (+20%)49 fps (+17%)
RTX 4070 (Laptop, 120W)175 fps (+11%)102 fps (+23%)51 fps (+21%)

As for Borderlands 3, at Medium settings, we can see a clear progression in the framerates. As you go higher and higher in the setitngs, you see less and less of a difference. Still, between the 65W GPU and the 100W+ GPUs, there’s around a 30% to 40% difference.

Borderlands 3Full HD, Medium (Check settings)Full HD, High (Check settings)Full HD, Badass (Check settings)
RTX 4070 (Laptop, 65W)121 fps95 fps76 fps
RTX 4070 (Laptop, 105W)153 fps (+26%)123 fps (+29%)100 fps (+32%)
RTX 4070 (Laptop, 120W)155 fps (+28%)125 fps (+32%)103 fps (+36%)
RTX 4070 (Laptop, 140W)179 fps (+48%)136 fps (+43%)108 fps (+42%)

Lastly, in Ghost Recon Wildlands, there’s barely any difference between the 105W and the 120W GPU, while the 65W card still reaches 65fps at the Ultra preset at Full HD.

Tom Clancy’s Ghost Recon WildlandsFull HD, High (Check settings)Full HD, Very High (Check settings)Full HD, Ultra (Check settings)
RTX 4070 (Laptop, 65W)114 fps101 fps66 fps
RTX 4070 (Laptop, 105W)137 fps (+20%)121 fps (+20%)80 fps (+21%)
RTX 4070 (Laptop, 120W)135 fps (+18%)117 fps (+16%)80 fps (+21%)

Stress testing

Even the 65W GPU couldn’t reach its max power limit, maxing out at 60W even after 30 minutes of testing. The 105W card is also very close, going as high as 99W. The 120W and 140W GPUs fail more miserably, leaving a lot of TDP headroom on the table to be used. Still the 140W card reaches high clock speeds. As for which card was the hottest, the award goes to the 105W RTX 4070, which reaches a peak temperature of 80°C.

GPU frequency/ Core temp (after 2 min)GPU frequency/ Core temp (after 30 min)
RTX 4060 (Laptop, 65W)1860 MHz @ 68°C @ 60W1860 MHz @ 70°C @ 60W
RTX 4060 (Laptop, 105W)2325 MHz @ 77°C @ 98W2325 MHz @ 80°C @ 99W
RTX 4060 (Laptop, 120W)2370 MHz @ 71°C @ 103W2370 MHz @ 73°C @ 102W
RTX 4060 (Laptop, 140W)2494 MHz @ 70°C @ 114W2482 MHz @ 76°C @ 115W

Just like the RTX 4060, the RTX 4070 is unable to heat peak wattages, even if we put the cards under extreme stress in the toughest. Apparently, NVIDIA does allow the GPUs to hit these power limits, however, only in certain scenarios and some games. However, they don’t specify which workloads and games exactly, so all we’re left with is a guessing game.

NVIDIA accomplishes this thanks to a voltage limit on the GPU. However, this can also be a safety net, so as to not damage the card, as higher values will put more stress on the card in terms of power and heat. It can also affect stability and lead to crashes. We’ll decide to trust NVIDIA on this one, but it’s really weird how the 30-series graphics cards had no problem reaching their peak TGPs. NVIDIA might also be playing it safe and to be more efficient, as battery life is crucial for laptops.

As for what this entails for you, the consumer: Don’t spend extra money for a supposedly higher power limit RTX 4070, as even the 105W version can do as much work as the “high and mighty” 140W model. And as a bonus, most of the time you’ll be getting a thinner and more compact laptop that still offers great performance.

If you want to get the most out of your GPU, head on to our [eBook Guide + Tools] How to MAX OUT your Gaming Laptop:

[eBook Guide] How to MAX OUT your Gaming Laptop

🛠️ GPU Modifications: vBIOS, Overclocking, Undervolting
⚙️ Building Fast/Reliable RAID configuration
💻 Hardware upgrade tips for best results
🖼 Display enhancing
💾 OS Optimization for best performance


Best Prices for each TGP tier

RTX 4070 (Laptop, 140W) Laptops

RTX 4070 (Laptop, 120W) Laptops

RTX 4070 (Laptop, 105W) Laptops

RTX 4070 (Laptop, 65W) Laptops

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