NVIDIA GeForce RTX 4090 Laptop GPU and RTX 4080 Laptop GPU as desktop cards in China.  Old fashion is back

China is a quite specific market, and often has its own rules. This is especially noticeable when we look at the range of graphics cards available on Chinese platforms. At one time, we could buy portable NVIDIA GeForce RTX 20 and 30 series (laptop GPU) systems there, which were sold as desktop graphics cards. Now the situation is almost the same, although newer NVIDIA modules are used.

The Chinese market offers “RTX 4080M” and “RTX 4090M” graphics cards, which are based on mobile phone systems used in laptops. They can be purchased at a cheaper price, but the solution is not without drawbacks.

NVIDIA GeForce RTX 4090 Laptop GPU and RTX 4080 Laptop GPU as desktop cards in China.  Old fashion is back [1]

NVIDIA GeForce RTX 4070 Ultra Performance Test. It's close to the GeForce RTX 4070 Ti, but the price is much lower

This situation should surprise no one today, as we have seen similar solutions often in China so far. Currently, all the attention of the “manufacturers” is focused on two well-known gaming laptop systems, the NVIDIA GeForce RTX 4080 laptop GPU and the RTX 4090 laptop GPU. They are sold similarly under the names “RTX 4080M” and “RTX 4090M”. Their designs are very simple and rely on two propellers. What encourages you to buy them is their prices. After all, the purchase amounts for the “RTX 4080M” range from $420 to $560. In turn, the performance of this variant falls between the NVIDIA GeForce RTX 4070 and RTX 4070 Ti graphics cards. The situation is a little worse in the case of the “RTX 4090M”, because at the moment there is only one offer online at a significantly inflated price – and this will likely change over time.

NVIDIA GeForce RTX 4090 Laptop GPU and RTX 4080 Laptop GPU as desktop cards in China.  Old fashion is back [2]

Tracking in Cyberpunk 2077 and Alan Wake II – Is the GeForce RTX 4080 the bare minimum even with NVIDIA DLSS and Frame Generation?

Looking at the tables below, you can easily see that both versions of the Laptop GPU systems in question are slightly limited compared to their desktop counterparts. Of course, the main limitation here will be the power consumption, which is set at 175W. In practice, these modified graphics cards turn out to be a problem, if only due to the aspect of proper drivers. Many users have already reported that such solutions are not working properly. In addition, there are many models of graphics cards on the market that are sold under different brands (usually more expensive graphics systems), but contain completely different graphics processors. It is not worth the risk or even think about purchasing such units.

Nvidia GeForce RTX 4090 Nvidia GeForce RTX 4080
building There's Lovelace There's Lovelace
Graphic planning AD102-300 AD103-300
Lithography TSMC “4N” TSMC “4N”
Number of transistors 76.3 ml 45.9 ml
Surface 609 mm² 379 mm²
Blocky poison 128 76
SP units 16384 9728
MOQ FP32 82,58 flop 48,74 flop
RT cores 128 RT 3rd generation 76 RT 3rd generation
Tensor cores 512 fourth generation motor 304 fourth generation motor
TMUs 512 304
Royal Oman Police units 176 112
Core clock 2235MHz 2205MHz
GPU boost clock 2520MHz 2505MHz
VRAM bandwidth 21 Gbps 22.5 Gbps
VRAM memory 24 GB GDDR6X 16 GB GDDR6X
Memory bus 384 bit 256 bits
capacity Do 1008 GB/s Do 716,8 GB/s
PCIe compatible PCIe 4.0×16 PCIe 4.0×16
TDP (baseline) 450 watts 320 watts
TDP (maximum) 660 watts 516 watts
Support DLSS 3 with FG So So
NVIDIA GeForce RTX 4090 laptop GPU NVIDIA GeForce RTX 4080 laptop GPU
building There's Lovelace There's Lovelace
Graphic planning M103 M104
Lithography TSMC 4N TSMC 4N
Surface 379 mm² 294 mm²
Transistors 45.9 ml 35.8 ml
Blocky poison 76 58
SP units 9728 7424
TMUs 304 232
Royal Oman Police units 112 80
RT units 76 (3. Gen.) 58 (3. Gen.)
Tension units 304 (4. Gen.) 232 (4. Gen.)
Core clock 1335MHz 1290MHz
Boost the clock 1695MHz 1665MHz
memory 16GB GDDR6 memory (up to 18GB/s) 12GB GDDR6 (up to 18Gbps)
Memory bus 256 bits 192 bits
capacity Do 576 GB/s Do 432 GB/s
Support DLSS 3 with FG So So
TGP parameter 175W power (150W + 25W dynamic boost) 175W power (150W + 25W dynamic boost)

NVIDIA GeForce RTX 4090 Laptop GPU and RTX 4080 Laptop GPU as desktop cards in China.  Old fashion is back [3]

Source: WCCFTech, VideoCardz

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