4 ms·

But the RTX 40 series doesn't support NVLink - so you can't tie the cards together to gain parallelism.

by binarymax 4y ago

deleted 4y ago
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monkmartinez 4y ago
Where are you seeing that, I am unable to find this information.
- binarymax 4y ago
  Frustratingly I can't link directly to the info, but on this page, click 'Specs' and then the green button 'Full Specs' to get a modal: https://www.nvidia.com/en-us/geforce/graphics-cards/40-series/rtx-4090/ https://www.nvidia.com/en-us/geforce/graphics-cards/40-serie... Here's the full table pasted: GPU Engine Specs: NVIDIA CUDA® Cores 16384 Boost Clock (GHz) 2.52 Base Clock (GHz) 2.23 Memory Specs: Standard Memory Config 24 GB GDDR6X Memory Interface Width 384-bit Technology Support: Ray Tracing Cores 3rd Generation Tensor Cores 4th Generation NVIDIA Architecture Ada Lovelace NVIDIA DLSS 3 NVIDIA Reflex Yes NVIDIA Broadcast Yes PCI Express Gen 4 Yes Resizable BAR Yes NVIDIA® GeForce Experience™ Yes NVIDIA Ansel Yes NVIDIA FreeStyle Yes NVIDIA ShadowPlay Yes NVIDIA Highlights Yes NVIDIA G-SYNC® Yes Game Ready Drivers Yes NVIDIA Studio Drivers Yes NVIDIA Omniverse Yes Microsoft DirectX® 12 Ultimate Yes NVIDIA GPU Boost™ Yes NVIDIA NVLink™ (SLI-Ready) No Vulkan RT API, OpenGL 4.6 Yes NVIDIA Encoder (NVENC) 2x 8th Generation NVIDIA Decoder (NVDEC) 5th Generation AV1 Encode Yes AV1 Decode Yes CUDA Capability 8.9 VR Ready Yes Display Support: Maximum Digital Resolution (1) 7680x4320 Standard Display Connectors HDMI(2), 3x DisplayPort(3) Multi Monitor 4 HDCP 2.3 Card Dimensions: Length 304 mm Width 137 mm Slots 3-Slot (61mm) Thermal and Power Specs: Maximum GPU Temperature (in C) 90 Graphics Card Power (W) 450 W Minimum System Power (W) (4) 850 W Supplementary Power Connectors 3x PCIe 8-pin cables (adapter in box) OR 450 W or greater PCIe Gen 5 cable
  - bick_nyers 4y ago
    If I remember correctly they stopped supporting NVLINK on the first generation of cards that had tensor cores (Turing). This is not an oversight on NVIDIA's part, this is intentional product segmentation.
  - monkmartinez 4y ago
    I see it now, thank you for pointing at it. That is not a great decision by Nvidia, IMO. Personally, I would buy a couple of 3090's with NVLink and call it day if it was for personal use. I would wait and see actual performance before even thinking about Lovelace cards. Nvidia makes all kinds of unsubstantiated claims during these events.
- deleted 4y ago
  [deleted]

But the RTX 40 series doesn't support NVLink - so you can't tie the cards together to gain parallelism.

deleted 4y ago

[deleted]

monkmartinez 4y ago

Where are you seeing that, I am unable to find this information.

binarymax 4y ago
Frustratingly I can't link directly to the info, but on this page, click 'Specs' and then the green button 'Full Specs' to get a modal: https://www.nvidia.com/en-us/geforce/graphics-cards/40-series/rtx-4090/ https://www.nvidia.com/en-us/geforce/graphics-cards/40-serie... Here's the full table pasted: GPU Engine Specs: NVIDIA CUDA® Cores 16384 Boost Clock (GHz) 2.52 Base Clock (GHz) 2.23 Memory Specs: Standard Memory Config 24 GB GDDR6X Memory Interface Width 384-bit Technology Support: Ray Tracing Cores 3rd Generation Tensor Cores 4th Generation NVIDIA Architecture Ada Lovelace NVIDIA DLSS 3 NVIDIA Reflex Yes NVIDIA Broadcast Yes PCI Express Gen 4 Yes Resizable BAR Yes NVIDIA® GeForce Experience™ Yes NVIDIA Ansel Yes NVIDIA FreeStyle Yes NVIDIA ShadowPlay Yes NVIDIA Highlights Yes NVIDIA G-SYNC® Yes Game Ready Drivers Yes NVIDIA Studio Drivers Yes NVIDIA Omniverse Yes Microsoft DirectX® 12 Ultimate Yes NVIDIA GPU Boost™ Yes NVIDIA NVLink™ (SLI-Ready) No Vulkan RT API, OpenGL 4.6 Yes NVIDIA Encoder (NVENC) 2x 8th Generation NVIDIA Decoder (NVDEC) 5th Generation AV1 Encode Yes AV1 Decode Yes CUDA Capability 8.9 VR Ready Yes Display Support: Maximum Digital Resolution (1) 7680x4320 Standard Display Connectors HDMI(2), 3x DisplayPort(3) Multi Monitor 4 HDCP 2.3 Card Dimensions: Length 304 mm Width 137 mm Slots 3-Slot (61mm) Thermal and Power Specs: Maximum GPU Temperature (in C) 90 Graphics Card Power (W) 450 W Minimum System Power (W) (4) 850 W Supplementary Power Connectors 3x PCIe 8-pin cables (adapter in box) OR 450 W or greater PCIe Gen 5 cable
- bick_nyers 4y ago
  If I remember correctly they stopped supporting NVLINK on the first generation of cards that had tensor cores (Turing). This is not an oversight on NVIDIA's part, this is intentional product segmentation.
- monkmartinez 4y ago
  I see it now, thank you for pointing at it. That is not a great decision by Nvidia, IMO. Personally, I would buy a couple of 3090's with NVLink and call it day if it was for personal use. I would wait and see actual performance before even thinking about Lovelace cards. Nvidia makes all kinds of unsubstantiated claims during these events.
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