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Nvidia intends to make the leap to multi-GPU design

The difference between a monolithic GPU and an MCM GPU. (Source: Nvidia)
The difference between a monolithic GPU and an MCM GPU. (Source: Nvidia)
The multi-GPU design from Nvidia bunches together multiple GPU dies and many DRAM dies interconnected with very fast I/O direct paths on a single chip.

Remember the glory days of 3dfx and their multi-GPU cards? 3dfx tried to fit as many GPUs as it could on a single card, but they couldn’t come up with a cost-effective method, and this strategy lead to their decline.  Nvidia bought all 3dfx proprietary technologies, but we haven’t seen many of these adopted by Nvidia, except for the multi-card SLI setups and dual GPU super high-end cards that cost a small fortune. However, in an attempt to bring a breath of fresh air to the GPU market, Nvidia plans to make the jump to a multi-GPU approach for its upcoming graphic card generations. This new approach is also known as MCM package (Multi-Chip-Module package) where multiple GPU, memory and controller chips are bunched together on a single chip.

As opposed to the monolithic GPU design, the MCM design uses smaller GPU dies and more DRAM dies, all of which should be interconnected through very fast I/O direct paths. Nvidia claims it has already tested this design by simulating the performance of 4 GPUs, each with 64 streaming multiprocessors, for a total of 256 SMs. The setup resulted into 16.383 CUDA cores. For reference, the current flagship Volta GPU from Nvidia has 3 times less CUDA cores, while the simulated 4-GPU MCM saw a 45.5% increase in performance.  

AMD also announced a similar design for their future EPYC CPUs and upcoming GPU generations. As of now, a timeline for the release of Nvidia’s and AMD’s future chips hasn’t been revealed.

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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2017 07 > Nvidia intends to make the leap to multi-GPU design
Bogdan Solca, 2017-07- 7 (Update: 2017-07- 7)
Bogdan Solca
Bogdan Solca - News Editor
I stepped into the wonderous IT&C world when I was around 7. I was instantly fascinated by computerized graphics, be them from games or 3D applications like 3D Max. I like to keep myself up to date with all the new technologies that get released at an ever increasing rate these days. I'm also an avid SciFi reader, an astrophysics aficionado and, as of late, a crypto geek.