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Radeon PRO W5700 vs Radeon PRO W6800

Workstation Verdict

With 32GB on board versus 8GB for the Radeon PRO W5700, the Radeon PRO W6800 carries more headroom for large models and memory-hungry workloads. Its memory bandwidth is 14% higher (512 GB/s vs 448 GB/s), translating directly to faster inference throughput. Price-wise, the Radeon PRO W5700 undercuts the Radeon PRO W6800 by $1,734 EUR.

Maximum Capacity Reached. Remove a model to add another. (2/2)

VS
AMD Radeon
PRO W5700
Price
€485
VRAM
8 GB GDDR6
Mem. Speed
448 GB/s
FP32 Compute
8.5 TFLOPS
Key Specs Advantage

Comparable or lower specs

AMD Radeon
PRO W6800
Price
€2,220
VRAM
32 GB GDDR6
Mem. Speed
512 GB/s
FP32 Compute
17.8 TFLOPS
Key Specs Advantage
+109% FP32 (TFLOPS) (17.8 TFLOPS vs 8.5 TFLOPS)
+67% Stream Processors (3,840 vs 2,304)
+14% Bandwidth (512 GB/s vs 448 GB/s)

Radeon PRO W5700 vs Radeon PRO W6800: In-Depth Breakdown

VRAM: Radeon PRO W5700 vs Radeon PRO W6800

With 32GB of VRAM against the Radeon PRO W5700's 8GB, the Radeon PRO W6800 has a 24GB edge. VRAM is what determines whether a model fits without quantization at all — a 70B-parameter model in FP16 needs around 140GB, and smaller models still benefit from spare capacity. That extra headroom lets the Radeon PRO W6800 load bigger models and run larger production batch sizes.

Inference Speed: Memory Bandwidth

Memory bandwidth determines how quickly data is fed to the compute units — it's the main bottleneck for autoregressive inference (token generation in LLMs). The Radeon PRO W6800 delivers 512 GB/s versus 448 GB/s on the Radeon PRO W5700, a 14% edge. For models already loaded into VRAM, token generation speed scales closely with this number: the Radeon PRO W6800 will produce tokens proportionally faster in bandwidth-bound workloads.

AI Training & Compute

FP32 throughput is the metric that matters most for training, scientific simulation, and rendering work. The Radeon PRO W6800 posts 17.8 TFLOPS versus 8.5 TFLOPS on the Radeon PRO W5700, a 109% compute lead. Expect training jobs and heavy matrix math to finish proportionally sooner on the Radeon PRO W6800.

Price & Value

The Radeon PRO W5700 lists from $485 EUR, $1,734 EUR less than the Radeon PRO W6800 at $2,220 EUR. For budget-constrained teams, the savings may outweigh the spec gap — especially if the smaller card covers your typical workload.

Which should you buy: Radeon PRO W5700 or Radeon PRO W6800?

Go with the Radeon PRO W6800 if you need maximum capacity: it's ahead on VRAM, bandwidth, and compute, so it's the stronger fit for large models and training jobs. The Radeon PRO W5700 is the cheaper pick ($1,734 EUR less) — worth it if your models already fit within its 8GB and you're not running heavy inference volume.

Frequently Asked Questions

Can the Radeon PRO W5700 or Radeon PRO W6800 run large language models?

Both can, but the Radeon PRO W6800 (32GB) handles larger models without quantization. The Radeon PRO W5700 (8GB) works well for smaller or heavily quantized models.

Which is faster for LLM inference, the Radeon PRO W5700 or the Radeon PRO W6800?

The Radeon PRO W6800 generates tokens faster: its 512 GB/s of memory bandwidth against 448 GB/s on the Radeon PRO W5700 is the main factor behind inference throughput in autoregressive models.

Which is better for AI training?

The Radeon PRO W6800 has the advantage at 17.8 TFLOPS vs 8.5 TFLOPS, making training runs proportionally faster than on the Radeon PRO W5700.

Which should you buy: Radeon PRO W5700 or Radeon PRO W6800?

Go with the Radeon PRO W6800 if you need maximum capacity: it's ahead on VRAM, bandwidth, and compute, so it's the stronger fit for large models and training jobs. The Radeon PRO W5700 is the cheaper pick ($1,734 EUR less) — worth it if your models already fit within its 8GB and you're not running heavy inference volume.

Technical Specifications Comparison

Architecture & Cores

Architecture & Cores specifications comparison between Radeon PRO W5700 and Radeon PRO W6800
SpecificationRadeon PRO W5700Radeon PRO W6800
ArchitectureRDNA 1RDNA 2
CUDA Cores (Stream Processors / Stream Processors)2,3043,840

Memory

Memory specifications comparison between Radeon PRO W5700 and Radeon PRO W6800
SpecificationRadeon PRO W5700Radeon PRO W6800
VRAM Capacity8 GB32 GB
Memory TypeGDDR6GDDR6
Memory Bus256-bit256-bit
Bandwidth448 GB/s512 GB/s

Connectivity & Power

Connectivity & Power specifications comparison between Radeon PRO W5700 and Radeon PRO W6800
SpecificationRadeon PRO W5700Radeon PRO W6800
InterfacePCIe 4.0 x16PCIe 4.0 x16
TDP130 W250 W
ReleasedDec 2019May 2021

Workstation

Workstation specifications comparison between Radeon PRO W5700 and Radeon PRO W6800
SpecificationRadeon PRO W5700Radeon PRO W6800
FP32 (TFLOPS)8.5 TFLOPS17.8 TFLOPS
ECCYesYes
NVLinkNoNo
Form factordual-slotdual-slot