AMD Radeon PRO W6800X Duo ‘Dual RDNA 2 GPU’ Graphics Card Outperforms NVIDIA GeForce RTX 3090 & RTX A6000 In Octane Render

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The AMD Radeon PRO W6800X Duo graphics card which features dual Big Navi 21 GPUs beaten NVIDIA's GeForce RTX 3090 and RTX A6000 in the Octane Render benchmark. The benchmarks posted by Bare Feats show more than just Octane Render and also compare the monster card in other content creation applications against older Pro & RX cards.

AMD Radeon PRO W6800X Duo $5000 Graphics Card Is 14% Faster Than NVIDIA RTX A6000 In Octane Render Benchmark

The AMD Radeon PRO W6800X Duo graphics card is the only dual-chip graphics card available in the RDNA 2 family and it's exclusive to the Apple Mac Pro. The card was announced last month & costs $5000 US to purchase from the Apple Store. The card comes in the MPX module and is only compatible with the Mac Pro 2019 system. Following are some of its highlights:

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  • Two W6800X GPUs, each with 60 compute units and 3840 stream processors
  • 64GB of GDDR6 memory (32GB per GPU), each with 512GB/s memory bandwidth
  • Up to 30.2 teraflops single precision or 60.4 teraflops half precision
  • Four Thunderbolt 3 ports and one HDMI 2.0 port on card
  • Four DisplayPort connections routed to the system to support internal Thunderbolt 3 ports
  • Support for up to eight 4K displays, four 5K displays, or six Pro Display XDRs
  • Full-height MPX Module fills an MPX bay and uses extra power and PCIe bandwidth
  • Onboard Infinity Fabric Link connection connects two W6800X GPUs at up to 84GB/s in each direction; external Infinity Fabric Link connection enables two W6800X Duo modules to connect four W6800X GPUs

AMD Radeon PRO W6800X Duo GPU Specifications

The flagship variant of all is the dual Big Navi 21 GPU-based Radeon Pro W6800X which offers up to 64 GB of GDDR6 memory and two 60 CU GPU dies that offer a total of 120 Compute Units or 7680 cores. The clock speed for each core is maintained at 1979 MHz, offering up to 30.2 TFLOPs of FP32 and 60.4 TFLOPs of FP16 Compute power. The card offers up to 1 TB/s of memory bandwidth with its dual 256-bit bus interface. The two cut-down Navi 21 GPU dies should bring the total wattage of the DUO to around 400W.

AMD Radeon PRO W6000 Series Graphics Cards

Graphics CardGPUProcess NodeCompute Units / CoresCompute Rate (FP32)Compute Rate (FP16)VRAMMemory BusMemory BandwidthTDPPrice
Radeon Pro W6800X DuoNavi 21TSMC 7nm60 / 768030.2 0TFLOPs60.40 TFLOPs64 GB GDDR6256-bit x21 TB/s400WTBA
Radeon Pro W6900XNavi 21TSMC 7nm80 / 512022.20 TFLOPs44.40 TFLOPs32 GB GDDR6256-bit512 GB/s300WTBA
Radeon Pro W6800XNavi 21TSMC 7nm60 / 384016.00 TFLOPs32.00 TFLOPs32 GB GDDR6256-bit512 GB/s300WTBA
Radeon Pro W6800Navi 21TSMC 7nm60 / 384017.83 TFLOPs35.66 TFLOPs32 GB GDDR6256-bit512 GB/s250W$2249 US
Radeon Pro W6600Navi 23TSMC 7nm28 / 179210.40 TFLOPs20.8 TFLOPs8 GB GDDR6128-bit224 GB/s100W$649 US
Radeon Pro W6600MNavi 23TSMC 7nm28 / 179210.40 TFLOPs20.8 TFLOPs8 GB GDDR6128-bit224 GB/s90WTBA

AMD Radeon PRO W6800X Duo GPU Benchmarks

So coming to the benchmarks, the AMD Radeon PRO W6800X Duo was tested in several tests, and the primary one we will focus on is Octane Benchmark which generally offers better performance on NVIDIA RTX cards. The Radeon PRO finished the render in 14 seconds with a score of around 717 points. NVIDIA's fastest workstation card, the RTX A6000 finishes the same render in 16 secs (628 scores) while the fastest gaming graphics card, the RTX 3090 finishes the render in 15.2 secs (662 scores).

  • AMD Radeon PRO W6800X Duo - 717 Points / 14 Seconds
  • NVIDIA GeForce RTX 3090 - 662 Points / 15.2 Seconds
  • NVIDIA RTX A6000 - 628 Points / 16 Seconds

This puts the AMD Radeon PRO W6800X Duo at 14% faster than the NVIDIA RTX A6000 & 8% faster than the RTX 3090. Now in terms of prices, the Duo does cost a lot more considering the A6000 can be found for around $4500-$5000 US while the RTX 3090 has an MSRP of $1499 US but even with inflated prices can be found for around $2000-$3000 US. Compared to the last-gen AMD PRO Vega II Duo, the new Navi 21 based solution is around 18% faster & 37% faster compared to the Radeon RX 6900 XT (Single-GPU). The outlet also shared some numbers in Da Vinci Resolve which you can see below:

Products mentioned in this post

GeForce RTX 3090
GeForce RTX 3090
USD 3033.29
Mac Pro
Mac Pro
USD 2158
NVIDIA GeForce RTX 3090
NVIDIA GeForce RTX 3090
USD 3399.97

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