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Exclusive | NVIDIA planning a Turing-based MX350 successor to take on Intel Tiger Lake's Xe DG1 iGPU, will be a GTX 1650-class chip with PCIe Gen4 support

NVIDIA is working on a Turing-based MX350 successor.
NVIDIA is working on a Turing-based MX350 successor.
NVIDIA is working on a Turing-based successor to the upcoming MX350 dGPU, according to our sources familiar with the matter. The new MX GPU will be based on the TU117 GPU found in the GTX 1650 and will be the first Turing card to feature PCIe Gen4 support. The TU117 MX GPU is designed to take on the Xe DG1 iGPU in Intel Tiger Lake processors and is expected to come in two variants with different package sizes.
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A short while ago, we reported exclusive details about NVIDIA's upcoming GeForce MX330 and MX350 entry-level dGPUs. These GPUs are still based on the Pascal architecture despite Turing being a couple of years old by now. However, we are getting to hear from our sources that NVIDIA is indeed working on a Turing-based MX GPU, and that it will take on Xe DG1 in Tiger Lake later this year.

Our sources tell us that a successor to the MX350 (N17S-G5), which is internally being referred to as the N18S-G5, is in the works for a 2H 2020 launch to coincide with the launch of Intel Tiger Lake. So, while the current MX330 and MX350 will cater to laptops based on Intel Ice Lake and Comet Lake, the N18S-G5 is intended to counter the Xe DG1 iGPU that will be part of Tiger Lake processors. Laptops powered by Intel Tiger Lake will, therefore, offer both MX350 and N18S-G5 dGPU options. 

The N18S-G5 will come in two variants, A and B, neither of which currently have a marketing name. Both the N18S-G5 variants will be based on the Turing TU117 GPU, which essentially makes them a gimped GTX 1650. They will support PCI Gen4 speeds, 64-bit GDDR6 VRAM, and have a 25 W TDP envelope. The difference, however, lies in the package size with the N18S-G5-B slated to come in a 29 x 29 mm package compared to the N18S-G5-A1's 23 x 23 mm.

The N18S-G5-A can be configured to have either GDDR5 VRAM at 3.5 GHz or GDDR6 at 5 GHz memory clocks while the N18S-G5-B features GDDR6 VRAM at 5 GHz memory frequency. GPU core clocks and CUDA Core counts are still unknown, but expect something on the lines of a GTX 1650 Max-Q

The table below illustrates what we know of these Turing-based MX GPUs so far:

Specs
Turing-based MX GPU-1
Turing-based MX GPU-2
Marketing Part Number

N18S-G5-B-KA-A1

N18S-G5-B-KB-A1

N18S-G5-A1
NVIDIA Part Number

TU117-655-KA-A1

TU117-655-KB-A1

TU117-650-A1
GPU Architecture
Turing
Turing
Process
12 nm
12 nm
Package
GB4D-128
GB2E-64
Package Size
29 x 29 mm
23 x 23 mm
BGA
960-ball
603-ball
PCI Express
Gen4 x4
Gen4 x4
GPU Base Clock
?
?
GPU Boost Clock
?
?
CUDA Cores
?
?
Memory Type

64-bit GDDR6

256Mx32

64-bit GDDR6 / GDDR5

256Mx32 / 512Mx16 for 3.5 GHz memory clock

256Mx32 for 5 GHz memory clock

P0 Memory Clock
5 GHz
5 GHz / 3.5 GHz
Display Port
N/A
N/A
HDMI Port
N/A
N/A
TDP
25 W
25 W
Mass Production
Week of June 8
May
Launch Date
TBD

TBD

Based on what we are hearing from our sources, the Turing-based N18S-G5 MX GPUs and the MX350 (N17S-G5) will be the upsell options for Tiger Lake laptops. For Comet Lake and Ice Lake, the MX350 and MX330 will remain. This is certainly a welcome news as we can now expect GTX 1650 Max-Q level performance in the entry-level.

Timeline MX GPUs
1H 2020
Ice Lake-U
Comet Lake-U
MX 330 (N17S-G3)
MX 350 (N17S-G5)
2H 2020
Tiger Lake-U
N18S-G5 (New)
MX 350 (N17S-G5)

The N18S-G5-A variant with GDDR5 and GDDR6 VRAM options is expected to enter mass production in May followed by the N18S-G5-B variant with GDDR6 in the week of June 8. Both GPUs are expected to feature in Intel Tiger Lake-powered laptops that are set to launch sometime in 2H 2020.

Source(s)

Own

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Vaidyanathan Subramaniam
Vaidyanathan Subramaniam - Managing Editor - 1309 articles published on Notebookcheck since 2012
Though a cell and molecular biologist by training, I have been drawn towards computers from a very young age ever since I got my first PC in 1998. My passion for technology grew quite exponentially with the times, and it has been an incredible experience from being a much solicited source for tech advice and troubleshooting among family and friends to joining Notebookcheck in 2017 as a professional tech journalist. Now, I am a Lead Editor at Notebookcheck covering news and reviews encompassing a wide gamut of the technology landscape for Indian and global audiences. When I am not hunting for the next big story or taking complex measurements for reviews, you can find me unwinding to a nice read, listening to some soulful music, or trying out a new game.
contact me via: @Geeky_Vaidy
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2020 02 > NVIDIA planning a Turing-based MX350 successor to take on Intel Tiger Lake's Xe DG1 iGPU, will be a GTX 1650-class chip with PCIe Gen4 support
Vaidyanathan Subramaniam, 2020-02-10 (Update: 2020-02-25)