L40S vs B200 SXM
Head-to-head specifications
| Metric | L40S | B200 SXM | Difference |
|---|---|---|---|
| FP32 compute (TFLOPS) | 91.6 | 17.6 | +420.5% |
| VRAM | 48 GB GDDR6 | 192 GB HBM3e | — |
| Memory bandwidth (GB/s) | 864 | 8,000 | -89.2% |
| TDP (W) | 350 | 1020 | — |
| Stable Diffusion (it/s) | 36.6 | 120.0 | -69.5% |
| LLM inference (tokens/s) | 53 | 450 | -88.2% |
- L40S offers 91.6 TFLOPS of FP32 compute versus 17.6. These cards span different eras or segments, so modern gaming benchmarks are not directly comparable — judge them within their own generation and use case.
Verdict: L40S or B200 SXM?
L40S advantages
- Power efficiency (+66%)
B200 SXM advantages
- Video memory (+75%)
- Memory bandwidth (+89%)
- AI image generation (+70%)
- Local LLM inference (+88%)
Which should you choose?
- Choose the L40S if you want lower power draw, heat and noise.
- Choose the B200 SXM if you play the latest titles at high textures or do GPU-accelerated work.
L40S vs B200 SXM: which should you choose?
L40S — NVIDIA desktop graphics card (2023, Ada Lovelace) with 48 GB of GDDR6, averaging 148 fps at 1440p.
B200 SXM — NVIDIA server graphics card (2024, Blackwell) with 192 GB of HBM3e; launched at $35,000.
L40S vs B200 SXM: L40S has more raw compute. L40S offers 91.6 TFLOPS of FP32 compute versus 17.6. These cards span different eras or segments, so modern gaming benchmarks are not directly comparable — judge them within their own generation and use case.
Different eras, different missions
These two parts do not compete head-to-head: L40S (2023, Desktop) and B200 SXM (2024, Server) come from different generations or market segments, so modern game benchmarks do not apply to both. The specification table above is best read as architectural context — process node, memory technology and power budgets show how far GPU design has moved.
Specifications at a glance
L40S carries 48 GB of GDDR6 against 192 GB of HBM3e on B200 SXM, with board powers of 350 W and 1020 W respectively.
The verdict
Both are credible choices in the graphics card comparison space; the specification table above lays out every metric so you can weigh the trade-offs that matter to you. Pick the one whose strengths line up with how you will actually use it.
Frequently asked questions
Is the L40S better than the B200 SXM?
B200 SXM is the clearly stronger overall choice, winning most of the dimensions that matter. L40S offers 91.6 TFLOPS of FP32 compute versus 17.6. These cards span different eras or segments, so modern gaming benchmarks are not directly comparable — judge them within their own generation and use case.
What is the main difference between the L40S and the B200 SXM?
L40S offers 91.6 TFLOPS of FP32 compute versus 17.6. These cards span different eras or segments, so modern gaming benchmarks are not directly comparable — judge them within their own generation and use case.
Which should I choose?
Choose the L40S if you want lower power draw, heat and noise. Choose the B200 SXM if you play the latest titles at high textures or do GPU-accelerated work.
Methodology
Graphics cards are compared on 3DMark Time Spy scores, average gaming frame rates at 1080p/1440p/4K, FP32 compute throughput, VRAM capacity and type, memory bandwidth, board power (TDP) and launch MSRP — plus AI workload throughput (Stable Diffusion iterations/s and local LLM tokens/s) where measured. Vintage and server GPUs without modern benchmark results are compared on specifications only, clearly labelled. Frame rates are averages across a game suite at high settings; specific titles vary.