钽TANDIU钽铥
SELF-HOSTING

Step 5 Preview: Self-Hosting Estimate

Step 5 Preview (StepFun) on different GPUs: configuration, estimated performance and use cases.

Data updated: 2026-09-16

← All self-hosting estimates

Total parameters604BSets weight VRAM
Active parameters27BSets decode compute and speed
Public benchmarksAA 28.5 · LiveBench 61.0
Vendor API price$1.05 / $2.99input / output per 1M tokens · cached $0.105 · Token prices →
Vendor API output speed—measured by Artificial Analysis; compare with local estimates below

B300 288GB

288 GB · 8,000 GB/s · Top-tier Blackwell card (no official channels to China)
Suggested precision
FP16/BF16 (full precision)
GPUs needed
8priced as 1 × 8-GPU HGX node
Est. decode speed
1,185 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 2,015 tok/sin 43,333 tok/s · many concurrent requests
Hardware list price
$299,058–$498,429Cloud rental (live) ×8: $63.08–$63.08/hr (2026-11-04)
Hardware market price
$1,047,167
Typical use
Enterprise-grade ultra-large-scale training and high-concurrency inference clusters

GB200 192GB (single card equivalent)

192 GB · 8,000 GB/s · Top-tier Blackwell card (no official channels to China)
Suggested precision
FP16/BF16 (full precision)
GPUs needed
8
Est. decode speed
1,185 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 2,015 tok/sin 48,148 tok/s · many concurrent requests
Hardware list price
$239,544–$359,316
Hardware market price
$718,058–$1,436,115
Typical use
Ultra-large-scale trillion-parameter model training and inference clusters (networked with Grace CPU)

B200 180GB

180 GB · 8,000 GB/s · Top-tier Blackwell card (no official channels to China)
Suggested precision
INT8
GPUs needed
8priced as 1 × 8-GPU HGX node
Est. decode speed
2,370 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 4,030 tok/sin 43,333 tok/s · many concurrent requests
Hardware list price
$299,058–$498,429Cloud rental (live) ×8: $59.58–$100.08/hr (2026-11-05)
Hardware market price
$448,786–$523,584
Typical use
Enterprise-grade large-scale online inference and training

H200 141GB

141 GB · 4,800 GB/s · Top-tier export-controlled card (channels to China are volatile)
Suggested precision
INT8
GPUs needed
8priced as 1 × 8-GPU HGX node
Est. decode speed
1,422 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 2,418 tok/sin 19,047 tok/s · many concurrent requests
Hardware list price
$279,837–$499,708Cloud rental (live) ×8: $23.93–$36.86/hr (2026-11-05)
Hardware market price
$224,393–$233,369
Typical use
Enterprise-grade production environment high-concurrency inference

H100 SXM5 80GB

80 GB · 3,350 GB/s · Top-tier export-controlled card (no official channels to China)
Suggested precision
INT4 (AWQ/GPTQ)
GPUs needed
8priced as 1 × 8-GPU HGX node
Est. decode speed
1,985 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 3,375 tok/sin 19,047 tok/s · many concurrent requests
Hardware list price
$239,860–$831,514Cloud rental (live) ×8: $15.47–$32.90/hr (2026-11-05)
Hardware market price
$320,732
Typical use
Enterprise-grade production environment high-concurrency inference/training

H800 SXM 80GB

80 GB · 3,350 GB/s · Top-tier export-controlled card (discontinued)
Suggested precision
INT4 (AWQ/GPTQ)
GPUs needed
8priced as 1 × 8-GPU HGX node
Est. decode speed
1,985 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 3,375 tok/sin 19,047 tok/s · many concurrent requests
Hardware list price
$293,207–$311,158
Hardware market price
$403,907–$418,867
Typical use
Enterprise-grade production deployment (original China-compliant model, now discontinued)

H20 96GB

96 GB · 4,000 GB/s · Export-compliant special supply card (significantly reduced compute power)
Suggested precision
INT8
GPUs needed
8
Est. decode speed
1,185 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 2,015 tok/sin 2,850 tok/s · many concurrent requests
Hardware list price
n/a
Hardware market price
$95,741–$131,644
Typical use
Suboptimal choice in export-compliant environments, medium-to-large scale inference deployment (FP16 compute power is only about 15% of H100, but higher memory bandwidth offers an advantage in decode-intensive scenarios)

A800 PCIe 80GB

80 GB · 1,935 GB/s · Compliant special supply card (export compliance status adjusted multiple times)
Suggested precision
INT4 (AWQ/GPTQ)
GPUs needed
8
Est. decode speed
1,147 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 1,170 tok/sin 3,605 tok/s · many concurrent requests · PCIe multi-GPU penalty
Hardware list price
$119,676–$124,463
Hardware market price
$129,250–$143,612
Typical use
Medium-scale inference/training deployment in export-compliant environments

Ascend 910C 128GB

128 GB · 3,200 GB/s · Huawei dual-chip data center card (domestically produced)
Suggested precision
INT8
GPUs needed
8
Est. decode speed
948 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 1,612 tok/sin 14,483 tok/s · many concurrent requests
Hardware list price
n/a
Hardware market price
$95,741–$239,353
Typical use
Domestically produced large model training and inference clusters, CloudMatrix and other super-node solutions

Ascend 910B 64GB

64 GB · 400 GB/s · Domestic alternative (not subject to US export controls)
Suggested precision
INT4 (AWQ/GPTQ)
GPUs needed
8
Est. decode speed
237 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 403 tok/sin 6,163 tok/s · many concurrent requests
Hardware list price
n/a
Hardware market price
$131,644–$143,612
Typical use
Domestic alternative, not subject to US export controls, medium-to-large scale inference/training deployment, memory bandwidth significantly lower than NVIDIA cards of similar VRAM capacity

RTX PRO 6000 Blackwell 96GB

96 GB · 1,792 GB/s · Professional workstation/server card (China-specific version is 6000D 84GB)
Suggested precision
INT8
GPUs needed
8
Est. decode speed
531 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 542 tok/sin 5,778 tok/s · many concurrent requests · PCIe multi-GPU penalty
Hardware list price
$128,200Cloud rental (live) ×8: $9.62–$18.15/hr (2026-11-05)
Hardware market price
$140,691
Typical use
Single-card large VRAM inference, local deployment of medium MoE models, private all-in-one machine

RTX PRO 5500 Blackwell 84GB

84 GB · 1,398 GB/s · Professional workstation card (specs are NVIDIA preliminary data)
Suggested precision
INT4 (AWQ/GPTQ)
GPUs needed
8
Est. decode speed
828 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 845 tok/sin 5,223 tok/s · many concurrent requests · PCIe multi-GPU penalty
Hardware list price
$91,147
Hardware market price
$101,725–$107,709
Typical use
Workstation large VRAM inference, departmental private deployment

RTX PRO 5000 Blackwell 48GB

48 GB · 1,344 GB/s · Professional workstation card
Suggested precision
INT4 (AWQ/GPTQ)
GPUs needed
8
Est. decode speed
796 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 812 tok/sin 2,981 tok/s · many concurrent requests · PCIe multi-GPU penalty
Hardware list price
n/aCloud rental (live) ×8: $4.49–$8.55/hr (2026-11-05)
Hardware market price
$64,625
Typical use
Small to medium model inference, development testing, single-machine multi-card private deployment

L40S 48GB

48 GB · 864 GB/s · Compliant inference card
Suggested precision
INT4 (AWQ/GPTQ)
GPUs needed
8
Est. decode speed
512 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 522 tok/sin 4,183 tok/s · many concurrent requests · PCIe multi-GPU penalty
Hardware list price
$53,854–$77,790Cloud rental (live) ×8: $4.81–$7.30/hr (2026-11-05)
Hardware market price
$53,854–$77,790
Typical use
SME teams building inference services, medium-low concurrency

L20 48GB

48 GB · 864 GB/s · Compliant inference card
Suggested precision
INT4 (AWQ/GPTQ)
GPUs needed
8
Est. decode speed
512 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 522 tok/sin 1,381 tok/s · many concurrent requests · PCIe multi-GPU penalty
Hardware list price
$27,941–$28,101
Hardware market price
$41,887
Typical use
SME teams building inference services, medium-low concurrency

RTX 5090 32GB

32 GB · 1,792 GB/s · Consumer flagship (not sold in China, 5090D for domestic market)
Suggested precision
INT4 (AWQ/GPTQ)
GPUs needed
16 (exceeds one node: multi-node needed)
Est. decode speed
2,124 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 2,166 tok/sin 9,684 tok/s · many concurrent requests · PCIe multi-GPU penalty
Hardware list price
n/aCloud rental (live) ×16: $7.07–$8.51/hr (2026-11-05)
Hardware market price
$107,706
Typical use
Local inference and development for individuals/small teams, multi-card VRAM pooling for quantized MoE

RTX 5090D 24GB

24 GB · 1,344 GB/s · Consumer-grade/small-scale self-built
Suggested precision
INT4 (AWQ/GPTQ)
GPUs needed
16 (exceeds one node: multi-node needed)
Est. decode speed
1,593 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 1,625 tok/sin 6,864 tok/s · many concurrent requests · PCIe multi-GPU penalty
Hardware list price
$39,491Cloud rental (live) ×16: $7.07–$8.48/hr (2026-11-05)
Hardware market price
$67,019–$95,741
Typical use
Personal development/small-scale verification/POC, not recommended for production-level high concurrency

RTX 4090D 24GB

24 GB · 1,008 GB/s · Consumer-grade/small-scale self-built
Suggested precision
INT4 (AWQ/GPTQ)
GPUs needed
16 (exceeds one node: multi-node needed)
Est. decode speed
1,195 tok/ssingle-stream theoretical ceiling
Est. batched throughput
out 1,219 tok/sin 6,795 tok/s · many concurrent requests · PCIe multi-GPU penalty
Hardware list price
$31,113–$45,475Cloud rental (live) ×16: $5.41–$6.98/hr (2026-11-05)
Hardware market price
$62,232–$71,806
Typical use
Personal development/small-scale verification/POC, not recommended for production-level high concurrency
FAQ

FAQ

How is the estimated decode speed calculated?

Estimated speed = (memory bandwidth × GPU count) ÷ (active parameters × bytes per parameter): the memory-bound upper limit for one request (roofline). It scales linearly with GPU count and ignores interconnect overhead, batching and framework losses, so real results are usually well below it.

Can I trust the speed numbers for consumer GPUs?

The linear assumption is reasonable for NVLink data-center cards (H/B series) but too optimistic for consumer PCIe cards without NVLink (RTX 5090D/4090D); multi-GPU consumer setups lose far more to communication, so equal-looking numbers do not mean equal performance.

How is “Suggested precision” chosen?

It is the highest precision that fits within 8 GPUs; beyond that it is flagged as multi-node.

Where do the prices come from?

USD converted at ¥6.68 per USD. Cloud rental is the international vast.ai market rate, not a China purchase price.