Preface: lower power consumption and stronger performance

In the era of RTX 30 series notebooks, the most publicized by notebook manufacturers may be the release of 140W full blood performance unlocked by RTX 3060 Laptop.

In today's RTX 40 series era, this may no longer work.

Because the RTX 4070 Laptop can only use a maximum of 110W power consumption, in many cases, even 100W is enough!

The RTX 4090 Laptop is based on the new Ada Lovelace GPU architecture and has a core number AD106. It has 3 sets of GPC, 4608 stream processors, 144texture units, 144fourth-generation Tensor Core,48 third-generation light recovery units, 32MB secondary cache, 128Bit display bit width and 8GB video memory capacity.

The RTX 4090 Laptop is based on the new Ada Lovelace GPU architecture and has a core number AD106. It has 3 sets of GPC, 4608 stream processors, 144texture units, 144fourth-generation Tensor Core,48 third-generation light recovery units, 32MB secondary cache, 128Bit display bit width and 8GB video memory capacity.

There is no need to worry too much about these two points!It is better to have more stream processors, but on the one hand, there is a new architecture, on the other hand, TSMC 4N technology can achieve very high frequency.

RTX 4070 Laptop can stabilize the 2280MHz frequency in the actual game, compared with the RTX 3070 Ti Laptop even the running frequency of 1600MHz is difficult to guarantee.

As for 128Bit bit width, considering that AD106 GPU has built-in 32MB cache, which can reduce the requirement of GPU for video memory bandwidth to some extent, 256GB/s video memory bandwidth is sufficient for RTX 4070 Laptop.

In addition, the low bit width can reduce the complexity of GPU design and reduce the power consumption.

In fact, as long as the performance is stronger and the power consumption is lower, why care too much about these parameters!

In terms of power consumption, we all know that since the RTX 40 series, the TGP of the graphics card is just a power wall, not the real power consumption of the video card.

The TGP of the RTX 4070 Laptop is 120W, and the Seven Rainbow we tested unlocks the TGP to 140W. But in fact, such a high power consumption is not needed at all, and a 100W TGP is sufficient for the RTX 4070 Laptop.

As the killer of Ada Lovelace architecture, the new DLSS 3 adds frame generation technology to the original DLSS super resolution to generate new frames instead of pixels.

The principle is to analyze the difference between the current frame and the previous frame, and get a new frame through the AI algorithm, that is to say, on the basis of DLSS 2, DLSS 3 can directly double the frame rate of the game.

The delay generated by a frame generated out of thin air reduces the picture delay by binding the NVIDIA Reflex.

In order to make the frame insertion more realistic, DLSS 3 also introduces New Optical Flow Accelerator (Optical flow Accelerator), which can accurately calculate the light and shadow of two consecutive frames, as well as the direction and speed of particle flow, so as to achieve a more accurate shadow reconstruction effect by calculating motion vectors and optical flow.

In the absence of an optical flow accelerator, when an object moves fast, it will generate the wrong shadow.

The optical flow accelerator will capture the information such as particles, reflection and illumination in each pixel, and find the matching pixel area in the second frame, calculate the difference between frames, and finally get accurate shadow reconstruction.

Therefore, the frame generation technology of DLSS 3 is not a frame generated out of thin air. For games that support DLSS 3 technology, you just need to turn it on without a brain to enjoy a high frame rate.

What we have received is the NVIDIA Seven Rainbow Star X15 AT 2023 game book, which is equipped with RTX 4070 Laptop GPU and i7-13700HX processor, and the performance release of the whole machine can reach 185W.

But Memory is just a single 16GB channel.The game performance is about 35% weaker than the standard dual-channel memory.

The product tested in comparison is the ROG Gun God 6 Super Competition Edition, which is configured with a RTX 3070 Ti Laptop GPU,i9-12900H processor with a GPU TGP of 150W.