AMD RX 6800 - 16GB usable

Specifications

BrandAMD
ModelRX 6800
Usable VRAM16GB
ArchitectureRDNA2
CUDA / Stream Processors3,840
Memory Bandwidth512 GB/s
TDP250W
FP32 TFLOPS16.2

Current Offers

Used from $449New from $510

Prices last updated:

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Lowest tracked offers by retailer

US · USD · Weekly since May 2026 · Shipping may be extra

  • eBay $449 mid-range
  • Amazon $510 current
  • Newegg (no current offer)
$250$500$750$1,000May 8Jun 21Aug 5Sep 19Nov 3Newegg $790Amazon $510eBay $449
About these prices

Each line is the lowest offer we tracked from that retailer at weekly snapshots, ending at today's offer. The condition can vary between snapshots (new, used, or unrecorded for older ones). eBay prices exclude shipping. Tax is excluded. Amazon shows a current price only.

Weekly offers table
Lowest tracked offer per retailer · US · USD
DateeBayAmazonNewegg
Today, Nov 3, 2026 $449.00$509.97–
Oct 30, 2026 $389.99––
Oct 23, 2026 $449.99––
Oct 9, 2026 $487.00––
Oct 2, 2026 $399.99–$790.00
Sep 25, 2026 $359.99–$790.00
Sep 18, 2026 $325.00––
Sep 11, 2026 $359.99––
Sep 4, 2026 $365.00––
Sep 1, 2026 $380.00––
Aug 28, 2026 $349.99––
Aug 21, 2026 $340.00–$835.00
Aug 14, 2026 ––$799.00
Aug 7, 2026 $374.95––
Jul 31, 2026 $379.99–$799.00
Jul 24, 2026 $350.00–$599.00
Jul 17, 2026 $349.00–$449.99
Jul 10, 2026 $300.00–$449.99
Jul 3, 2026 $314.99–$599.00
Jun 26, 2026 ––$449.99
Jun 19, 2026 $359.99–$449.99
Jun 12, 2026 $345.00–$599.00
Jun 5, 2026 $329.99–$599.00
May 29, 2026 $320.00–$449.99
May 22, 2026 $340.00–$449.99
May 15, 2026 ––$449.99
May 8, 2026 ––$449.99

For AI / LLM Use

Good for 14B models. 30B requires aggressive quantization. Verify ROCm support for the exact framework and operating system you plan to use.

What Models Can It Run?

  • 14B Q6_K, 30B Q3_K (tight)
  • 14B Q4_K_M, 7B full precision
  • 7B Q6_K, 14B Q3_K (tight)
  • 7B Q4_K_M only

Estimated Performance

Generation: ~38 tokens/sec

Prefill: ~289 tokens/sec

Recommended Quantisations

  • Q4_K_M for 14B models
  • Q6_K for 7B-8B models
  • Q8 for 7B if VRAM allows

Pros & Cons

Pros

  • RDNA2 architecture: supported by current ROCm stacks
  • Consumer card: easy to install, display output

Cons

  • 16GB usable VRAM: may need quantization for 30B+ models
  • Moderate memory bandwidth: not the fastest for inference
  • ROCm and CUDA-first framework compatibility should be checked before purchase

Community Verdict

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