NVIDIA A100 40GB SXM4 vs NVIDIA A100 80GB SXM4, AI & Machine Learning Comparison

NVIDIA A100 40GB SXM4
NVIDIA A100 40GB SXM4
vs
NVIDIA A100 80GB SXM4
NVIDIA A100 80GB SXM4

NVIDIA A100 80GB SXM4 wins 127 of 149 benchmarks, averaging 5.5% faster.

NVIDIA A100 40GB SXM4's numbers are anchored estimates calibrated against our measured cards, pending first-party measurement. Treat small gaps as ties.

What the numbers say

The gap is widest in TinyLlama 1.1B served, where NVIDIA A100 80GB SXM4 leads by 77% (3221.3 vs 5701.5 serve tok/s); the closest fight is Wan 2.2 5B (720p) (0% apart); VRAM decides part of this one: NVIDIA A100 80GB SXM4 runs 155 of our 12 AI workloads while the other card runs 135, models that don't fit score zero.

Benchmark results head-to-head

BenchmarkNVIDIA A100 40GB SXM4NVIDIA A100 80GB SXM4Difference
Qwen3-4B tok/s193.14197-2%
Llama-3.1-8B tok/s157.26162.57-3%
Qwen2.5-Coder-14B tok/s86.289.45-4%
Qwen3-32B tok/s43.845.53-4%
Llama-3.3-70B tok/s024.4n/a
Stable Diffusion XL images/min18.57616.36+14%
Z-Image Turbo images/min9.9759.9750%
FLUX.1 dev images/min4.2644.2640%
FLUX.1 Kontext dev images/min1.9931.9930%
Qwen-Image-Edit images/min01.64n/a
LTX-Video (distilled) frames/s8.958.950%
Wan 2.2 5B (720p) frames/s0.660.660%
DeepSeek-R1 Distill Llama 8B tok/s157.16159.37-1%
DeepSeek-R1 Distill 1.5B tok/s320.78327.66-2%
DeepSeek-R1 Distill 14B tok/s86.3987-1%
DeepSeek-R1 Distill 7B tok/s159.09162.96-2%
Gemma 3 12B tok/s88.9791.45-3%
Gemma 3 4B tok/s174.14176.94-2%
Gemma 4 12B tok/s87.1492.43-6%
Llama 3.2 1B tok/s532.08525.32+1%
Llama 3.2 3B tok/s261.24264.25-1%
Mistral 7B v0.3 tok/s165.9171.92-4%
Mistral Small 24B tok/s62.4261.38+2%
Phi-4 14B tok/s98.6595.22+4%
Phi-4 Mini 3.8B tok/s236.71239.17-1%
Qwen2.5-Coder 7B tok/s159.9164.6-3%
Qwen3 0.6B tok/s417.88428.39-2%
Qwen3 1.7B tok/s340.76343.58-1%
Qwen3 14B tok/s90.0190.64-1%
Qwen3 30B A3B tok/s169.1177.32-5%
Qwen3 8B tok/s146.21149.96-3%
SmolLM3 3B tok/s246.25249.76-1%
Codestral 22B tok/s63.7463.26+1%
DeepSeek-R1 Distill 32B tok/s43.1343.110%
Devstral Small 24B tok/s62.461.63+1%
Dolphin 2.9.1 Yi 1.5 34B tok/s42.9743.47-1%
Dolphin Mistral 24B Venice tok/s62.4662.72-0%
Dolphin X1 8B tok/s156.3158.62-1%
Dolphin 3.0 Llama 3.1 8B tok/s156.55158.63-1%
Dolphin 3.0 R1 Mistral 24B tok/s62.461.17+2%
Gemma 3 27B tok/s47.4748.43-2%
Qwen2.5-Coder 32B tok/s43.1443.36-1%
Qwen3-Coder 30B A3B tok/s173.47182.26-5%
QwQ 32B tok/s43.0243.27-1%
StarCoder2 15B tok/s80.2579.22+1%
FLUX.1 Schnell images/min28.4428.390%
Z-Image Turbo (1024px) images/min18.718.650%
BiRefNet images/min611.56916.67-33%
Depth Anything V2 Large images/min536.74876.29-39%
Depth Anything V2 Small images/min613.42925.15-34%
SAM ViT-Base images/min696.77744.79-6%
SAM ViT-Huge images/min146.81145.7+1%
Swin2SR 4x Upscaler images/min17.2528.72-40%
Kokoro TTS 82M x realtime142.03110.17+29%
MusicGen Small x realtime1.080.74+46%
Whisper large-v3 x realtime102.4773.83+39%
Dolphin X1 Trinity Nano 6B tok/s153.27158.41-3%
gpt-oss-20b tok/s205.1212.63-4%
Olmo-3.1-32B-Think tok/s43.6746.49-6%
Dolphin-Mistral-24B-Venice-Edition tok/s62.5665.77-5%
DeepSeek-Coder-V2-Lite tok/s205.42213.91-4%
DeepSeek-R1-0528-Qwen3-8B tok/s145.84152.76-5%
EVA-Qwen2.5-14B-v0.2 tok/s86.4890.35-4%
Qwen2.5 1.5B LoRA train tok/s6349.78252.8-23%
Qwen2.5 7B LoRA train tok/s3670.83900.6-6%
SmolLM2 1.7B LoRA train tok/s6938.89750.8-29%
TinyLlama 1.1B LoRA train tok/s74719553.3-22%
gemma-2-2b-it-abliterated tok/s232.27244.41-5%
gemma-2-2b tok/s234.68244.52-4%
gemma-2-9b tok/s101.97108.68-6%
gemma-3-1b tok/s310.69324.08-4%
gemma-3-270m tok/s574.24617.58-7%
GLM-4.7-Flash tok/s119.1124.08-4%
SmolLM3-3B tok/s247.66254.6-3%
KAT-Coder-V2.5-Dev tok/s137.31146.38-6%
LFM2.5-1.2B tok/s572.69576.95-1%
Llama-2-7B tok/s172.53180.09-4%
Llama-3.2-3B-Instruct-uncensored tok/s260.83269.13-3%
Meta-Llama-3.1-8B tok/s156.68164.24-5%
Phi-4-mini tok/s237.38243.38-2%
Mistral-7B-Instruct-v0.1 tok/s166.39173.87-4%
Mistral-7B-Instruct-v0.2 tok/s166.8173.8-4%
Mistral-7B-Instruct-v0.3 tok/s167.06173.27-4%
Ornith-1.0-35B tok/s131.77138.8-5%
Ornith-1.0-9B tok/s126.79134.67-6%
Phi-3.5-mini tok/s222.53229.46-3%
Qwen-AgentWorld-35B-A3B tok/s131.16139.69-6%
Qwen3-0.6B tok/s408.39432.66-6%
Qwen3-1.7B tok/s341.85350.4-2%
Qwen3-14B tok/s90.0794.35-5%
Qwen3-8B tok/s145.96152.8-4%
Qwen2.5-0.5B tok/s517.09571.49-10%
Qwen2.5-1.5B tok/s315.59335.29-6%
Qwen2.5-14B tok/s86.0790.46-5%
Qwen2.5-32B tok/s43.2345.6-5%
Qwen2.5-3B tok/s240.48248.47-3%
Qwen2.5-7B tok/s159.81166.92-4%
Qwen2.5-Coder-1.5B tok/s322.96333.87-3%
Qwen2.5-Coder-3B tok/s241.51248.7-3%
AI21-Jamba-Reasoning-3B tok/s231.15239.23-3%
Codestral 22B (Q3_K_M) tok/s48.3749.52-2%
DarkIdol-Llama-3.1-8B-Instruct-1.2-Uncensored tok/s156.62164.46-5%
DeepSeek-R1 Distill 14B (Q3_K_M) tok/s65.3367.13-3%
DeepSeek-R1-Distill-Qwen-32B-abliterated tok/s43.0743.48-1%
dolphin-2.9-llama3-8b tok/s153.34164.09-7%
Gemma 3 12B (Q3_K_M) tok/s69.771.88-3%
GLM-4.7-Flash-REAP-23B-A3B tok/s109.1112.75-3%
Josiefied-Qwen3-8B-abliterated-v1 tok/s146.8152.29-4%
Hermes-3-Llama-3.2-3B tok/s261269.13-3%
L3-8B-Stheno-v3.2 tok/s156.55164.51-5%
LFM2.5-8B-A1B tok/s351.47369.01-5%
Mistral-Nemo-Instruct-2407 tok/s106.33111.07-4%
Mistral Small 24B (Q3_K_M) tok/s45.3446.63-3%
NemoMix-Unleashed-12B tok/s105.05110.99-5%
Nemotron-3-Nano-30B-A3B tok/s192.44204.06-6%
Hermes-4-14B tok/s89.9794.48-5%
phi-2 tok/s228.1235.55-3%
Phi-4 14B (Q3_K_M) tok/s80.7182.68-2%
Qwen3-30B-A3B tok/s167.1178.14-6%
Qwen3-4B-Instruct-2507 tok/s192.89199.39-3%
Qwen1.5-0.5B tok/s497.73540.32-8%
Qwen2-1.5B tok/s322.09333.79-4%
Uncensored tok/s85.8289.43-4%
Qwen2.5-Coder-0.5B tok/s542.36562.59-4%
Qwen2.5-Coder-14B-Instruct-abliterated tok/s86.3490.28-4%
Qwen2.5-Coder 32B (Q3_K_M) tok/s31.0431.99-3%
Qwen2.5-Coder-7B-Instruct-abliterated tok/s159.76166.84-4%
Qwen3 30B A3B (Q3_K_M) tok/s142.78146.72-3%
Qwen3-4B-Instruct-2507 tok/s193.39199.65-3%
Qwen3-4B-Thinking-2507 tok/s189.89199.71-5%
SmolLM2-135M tok/s544.06554.44-2%
Cydonia-24B-v4.3 tok/s62.4165.82-5%
Qwen2.5 1.5B served serve tok/s4111.14564.7-10%
Qwen2.5 7B served serve tok/s1769.62187.2-19%
SmolLM2 1.7B served serve tok/s3865.24351.4-11%
TinyLlama 1.1B served serve tok/s3221.35701.5-44%
Qwen3-Coder-Next-abliterated tok/s0119.56n/a
Laguna-XS-2.1 tok/s00n/a
Nanbeige4.2-3B tok/s00n/a
Qwen3-Coder-Next tok/s0118.62n/a
Qwen3-Next-80B-A3B-Thinking tok/s0118.93n/a
Qwen2.5-72B tok/s023.95n/a
Qwen3-Coder-Next tok/s0120.71n/a
Qwen3-Next-80B-A3B-Thinking tok/s0120.98n/a
Qwen3-Next-80B-A3B tok/s0117.44n/a
DeepSeek-R1-Distill-Llama-70B tok/s022.99n/a
Hermes-4-70B tok/s024.47n/a
Llama-3.3-70B-Instruct-abliterated tok/s022.92n/a
Meta-Llama-3.1-70B tok/s022.92n/a

Whole-job comparison

How long each card takes to finish a complete pipeline, not just one model. NVIDIA A100 40GB SXM4 is faster on 10 of 15; NVIDIA A100 80GB SXM4 on 5.

WorkflowNVIDIA A100 40GB SXM4NVIDIA A100 80GB SXM4DifferenceCost per run
50-image depth pass10 s5 sNVIDIA A100 80GB SXM4 1.94x faster$0.003 vs $0.002
30-minute podcast pass59 s67 sNVIDIA A100 40GB SXM4 1.14x faster$0.016 vs $0.026
24-frame storyboard3 min3.7 minNVIDIA A100 40GB SXM4 1.21x faster$0.051 vs $0.085
500-image masking run3.5 min3.5 minNVIDIA A100 80GB SXM4 1.00x faster$0.058 vs $0.081
60-second AI short film4 min4.7 minNVIDIA A100 40GB SXM4 1.18x faster$0.066 vs $0.108
60-second AI short film, narrated4.2 min4.9 minNVIDIA A100 40GB SXM4 1.18x faster$0.070 vs $0.114
6-panel comic page4.8 min6 minNVIDIA A100 40GB SXM4 1.25x faster$0.080 vs $0.139
Character sheet, 12 poses6.3 min7.6 minNVIDIA A100 40GB SXM4 1.21x faster$0.104 vs $0.175
Full codebase review11.7 min11.2 minNVIDIA A100 80GB SXM4 1.04x faster$0.195 vs $0.259
200-product catalogue cutout12.2 min7.3 minNVIDIA A100 80GB SXM4 1.67x faster$0.203 vs $0.169
10 short social clips13.7 min15.1 minNVIDIA A100 40GB SXM4 1.11x faster$0.228 vs $0.350
40-product photo shoot22.2 min23.5 minNVIDIA A100 40GB SXM4 1.06x faster$0.370 vs $0.543
40-product shoot, start to finish24.8 min25 minNVIDIA A100 40GB SXM4 1.01x faster$0.414 vs $0.579
100-photo restoration batch50.2 min50.8 minNVIDIA A100 40GB SXM4 1.01x faster$0.836 vs $1.177
100-photo restore and enlarge56 min54.3 minNVIDIA A100 80GB SXM4 1.03x faster$0.934 vs $1.258

Renting by the hour, NVIDIA A100 40GB SXM4 finishes 13 of 15 cheaper. The quicker card is not automatically the cheaper way to get the work done.

Cost to rent

CardPer hour
NVIDIA A100 40GB SXM4$1.000
NVIDIA A100 80GB SXM4$1.390

NVIDIA A100 40GB SXM4 is 1.39x cheaper per hour. Cheapest on-demand rate we see across RunPod and Vast.

Specifications compared

NVIDIA A100 40GB SXM4NVIDIA A100 80GB SXM4
VRAM40GB80GB
ArchitectureAmpereAmpere
Memory bandwidth1555 GB/s2039 GB/s
Boost clock1,410 MHz1,410 MHz
TDP400 W400 W
Launch MSRP$12,000$17,000
Release2020-05-142020-11-16

FAQ

Which is better for ai & machine learning: NVIDIA A100 40GB SXM4 or NVIDIA A100 80GB SXM4?
NVIDIA A100 80GB SXM4 performs better for ai & machine learning, winning 127 of 149 benchmarks in our suite with an average 5.5% advantage.
What are the main hardware differences between NVIDIA A100 40GB SXM4 and NVIDIA A100 80GB SXM4?
NVIDIA A100 40GB SXM4 has 40GB VRAM and a 400W TDP, while NVIDIA A100 80GB SXM4 has 80GB VRAM and a 400W TDP.
Does VRAM matter more than speed between NVIDIA A100 40GB SXM4 and NVIDIA A100 80GB SXM4?
For AI, yes, NVIDIA A100 80GB SXM4 fits 13 more of our 12 workloads than NVIDIA A100 40GB SXM4. A model that exceeds VRAM doesn't run slower, it doesn't run at all, so the card that fits the model wins that workload outright.
Where is the biggest performance difference between NVIDIA A100 40GB SXM4 and NVIDIA A100 80GB SXM4?
TinyLlama 1.1B served: NVIDIA A100 80GB SXM4 leads by roughly 77% (3221.3 vs 5701.5 serve tok/s) in our testing.

NVIDIA A100 40GB SXM4 full review · NVIDIA A100 80GB SXM4 full review · All AI & Machine Learning rankings