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T4 vs L4
Cloud rental price, compute per dollar and specs, side by side.
Open in the interactive comparer →
T4$0.34lowest on-demand per GPU·h
$5.28 per PFLOP·h · 3 providersL4$0.27lowest on-demand per GPU·h
$2.23 per PFLOP·h · 7 providersWhat actually differs
- The L4 has 1.9× more dense FP16/BF16 throughput than the T4 (0.065 PF vs 0.121 PF).
- The T4 has 1.1× more memory bandwidth than the L4 (320 vs 300 GB/s), which usually limits LLM token generation. Memory: 16 GB vs 24 GB.
- Only the L4 has native FP8 tensor cores.
- The L4 is 21% cheaper per hour than the T4 at the lowest on-demand prices ($0.34 vs $0.27).
- Per unit of compute, the L4 is the better deal: $2.23 vs $5.28 per PFLOP-hour of dense FP16/BF16.
| Spec / price | T4 | L4 |
|---|---|---|
| Memory | 16 GB GDDR6 | 24 GB GDDR6better |
| Memory bandwidth | 320 GB/sbetter | 300 GB/s |
| FP16 / BF16 (dense) | 0.065 PF | 0.121 PFbetter |
| FP8 (dense) | — | 0.242 PF |
| FP4 (dense) | — | — |
| INT8 (dense) | 0.13 PF | 0.242 PFbetter |
| TF32 (dense) | — | 0.06 PF |
| FP32 (dense) | 0.0081 PF | 0.0303 PFbetter |
| FP64 (dense) | 0.0003 PF | 0.0005 PFbetter |
| Power | 70 W | 72 W |
| Architecture | Turing (2018) | Ada Lovelace (2023) |
| Lowest on-demand | $0.34 | $0.27better |
| Median on-demand | $0.35better | $0.56 |
| Lowest spot | $0.07better | $0.08 |
| FP16/BF16 $ per PFLOP·h | $5.28 | $2.23better |
| Providers | 3 | 7 |
T4 vs L4: questions
Is the T4 faster than the L4?
The L4 has 1.9× more dense FP16/BF16 compute than the T4. The T4 has 1.1× more memory bandwidth than the L4. Real-world speedups depend on the workload: training and prefill scale with compute, while LLM decoding scales mostly with memory bandwidth.
Which is cheaper per FLOP, the T4 or the L4?
Right now the L4 is cheaper per unit of compute: $2.23 vs $5.28 per PFLOP-hour at the lowest on-demand prices.
How much does it cost to rent an T4 vs an L4 for a month?
Running one GPU around the clock at the lowest on-demand price costs about $250 per month for the T4 and $197 for the L4.
Which has more memory, the T4 or the L4?
The L4 has more memory: 24 GB vs 16 GB.