AMD Radeon PRO W6800

Official identity

Card

AMD Radeon PRO W6800

gfx

gfx1030

RDNA 2

Published VRAM

32 GB

Hardware label, not a bench

Peak bandwidth

512 GB/s

AMD W6800 product page — peak memory bandwidth 512 GB/s

Board power

250 W TBP

AMD W6800 product page — Total Board Power 250 W

ROCm matrix

Official

Older but still listed on the 10.1 matrix.

Form factor: PCIe add-in card (AMD product page). AMD W6800 product page — GPU form factor PCIe add-in card. AMD does not list a 48 GB W6800 on the cited product page. 32 GB GDDR6 is the listed SKU.

Cited support row: ROCm 10.1.0 compatibility matrix and Linux system requirements. We do not invent a support claim past that listing. AMD product page: PRO W6800.

HSA_OVERRIDE: Not needed when the build lists gfx1030.

What fits on this card (256K context)

Shopper verdict at 4K, then follow the pair page for 32K and full context. Q4 and up. No printed prices.

Workstation vs consumer

Built only from cited AMD product-page specs already on this sheet and the consumer /gpus pages. We do not invent a decode number or a street price.

1. 32 GB W6800 vs the 16 GB 6800 XT

   Same gfx1030 LLVM target. AMD cites 32 GB GDDR6, 512 GB/s, and 250 W TBP on the W6800 product page. The consumer 6800 XT is 16 GB and unofficial on the current Radeon ROCm row — the official RDNA 2 listing is this W6800. Double the sticker VRAM is not a measured decode claim.

2. W6800 vs the measured R9700

   Both are 32 GB workstation stickers. The R9700 is gfx1201 RDNA 4, 640 GB/s, 300 W TBP, measured on the local desktop. The W6800 is gfx1030 RDNA 2, 512 GB/s, 250 W TBP, still listed on the cited 10.1 matrix — not measured. Same VRAM class, older architecture.

3. W6800 vs the 32 GB W7800

   Both are 32 GB PRO cards. W7800 is gfx1100 RDNA 3 at 576 GB/s and 260 W TBP. W6800 is gfx1030 RDNA 2 at 512 GB/s and 250 W TBP. Do not mix those family packages.

What fits in VRAM

llama.cpp, f16 KV, 1 GPU and 2 GPUs (split). Q6 / Q5 / Q4 rows are calculator estimates. UD-Q3_K_XL is a labeled estimate — not a local desktop run. Speed stays not yet measured on our R9700s. Tables cover house 35B, Flash, and every cited /models page. Change quant or context in the calculator.

House 35B Q3 cite: Hugging Face listing for Qwen3.6-35B-A3B-UD-Q3_K_XL.gguf (16.8 GB). Other Q3 rows use the calculator publisher-file note for that model.

System RAM

Minimum system RAM needed and RAM needed at full context for Qwen3.6-35B-A3B on llama.cpp at Q4_K_M, 32K selected and the model’s full context. Estimate until a first-party amdai-bench/run@1 card exists for this SKU. Rounded up to a real DIMM kit. Offload rows on the other /models tables repeat both labels.

llama.cpp-first stack

1. Step 1

   llama.cpp first

   Vulkan and ROCm/HIP are both in scope on this official gfx1030 workstation row. The current Radeon official RDNA 2 listing is W6800, not the consumer 6800 XT. HIP when rocminfo lists gfx1030. Ollama and vLLM are secondary — not the house path for this card.

2. Step 2

   gfx1030 family package

   gfx1030 is the same LLVM target as the unofficial 16 GB 6800 XT. Do not mix a gfx110x (W7900 / W7800 / 7900) or gfx1201 (R9700) install. Re-check the cited matrix before you install.

3. Step 3

   32 GB W6800, not the 16 GB 6800 XT

   This sheet sizes the 32 GB PRO W6800. AMD product page: 32 GB GDDR6, 512 GB/s, 250 W TBP. The 16 GB consumer 6800 XT is a different listing and unofficial on the current Radeon ROCm row. Size the file on the calculator before you download.

4. Step 4

   Setup, then Stack Lab doctor

   First-run setup is Ubuntu. Open Stack Lab doctor for the install family rocminfo actually prints, then record an amdai-bench/run@1 card if you measure this SKU. House daily and Flash profiles are R9700 / local desktop — they do not apply here. Packages are not published yet.

Compare with…

Head-to-head pages use the same VRAM, bandwidth, and calculator fit already on the sheets. Q3 is a labeled estimate. No invented prices. PRO W6800 against the other published sheets:

• Compare GPUs
• vs PRO W7800
• vs RX 6800 XT
• vs RX 6950 XT

Also: PRO W7700 · PRO W7900 · R9700 · RX 6700 XT · RX 7600 · RX 7600 XT · RX 7700 XT · RX 7800 XT · RX 7900 GRE · RX 7900 XT · RX 7900 XTX · RX 9060 XT · RX 9070 · RX 9070 GRE · RX 9070 XT · Strix Halo