Specifications Compared
| Spec | RTX 4080 SUPER | RTX 4090 |
|---|---|---|
| TDP | 320W | 450W |
| VRAM | 16 GB | 24 GB |
| CUDA Cores | 9,728 | 16,384 |
| FP8 (dense) | Not published | 330.3 TFLOPS |
| Memory Type | GDDR6X | GDDR6X |
| Architecture | Ada Lovelace | Ada Lovelace |
| FP16 (dense) | Not published | 165.2 TFLOPS |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | Not published | 660.6 TOPS |
| Interconnect | Not published | PCIe 4.0 |
| Tensor Cores | 304 | 512 |
| FP32 Performance | 48.7 TFLOPS | 82.6 TFLOPS |
| FP64 Performance | Not published | 1.3 TFLOPS |
| Memory Bandwidth | 717 GB/s | 1,008 GB/s |
| FP8 (with sparsity) | Not published | 660.6 TFLOPS |
| FP16 (with sparsity) | Not published | 330.4 TFLOPS |
| INT8 (with sparsity) | Not published | 1,321.2 TOPS |
| FP16 (vendor figure, sparsity not specified) | 48.7 TFLOPS | Not published |
| INT8 (vendor figure, sparsity not specified) | 780 TOPS | Not published |
Performance Analysis
The RTX 4090 delivers 165.2 TFLOPS dense FP16 compared with the 48.7 TFLOPS FP16 figure on the RTX 4080 SUPER while both FP32 ratings stand at 82.6 TFLOPS versus 48.7 TFLOPS. This dense FP16 advantage allows the RTX 4090 to process larger batch sizes during inference and training steps that rely on half precision matrix operations. The 1008 GB/s memory bandwidth shared across RTX 4090 variants further supports these larger batches by sustaining higher data throughput than the 717 GB/s figure shared across RTX 4080 variants. Sparsity labeled figures on the RTX 4090 reach 330.4 TFLOPS for FP16 with sparsity yet the RTX 4080 SUPER provides no sparsity specification for its 48.7 TFLOPS FP16 rating so only dense to dense comparisons apply. The 24 GB memory capacity on the RTX 4090 variant versus 16 GB on the RTX 4080 SUPER variant reduces the need for model partitioning in memory intensive tasks. TDP differences of 450W versus 320W reflect the higher sustained performance envelope of the RTX 4090 family.
Current On-Demand Offers
Cheapest secure on-demand offer per provider that is reported in stock right now, per GPU per hour; multi-GPU instances show the whole-instance price alongside. Deploy opens the DeployGPU console for providers on the platform, otherwise the provider's own site. Stock is rechecked every minute.
RTX 4080 SUPER
RTX 4080 SUPER is not offered on-demand by any provider we track right now. See the RTX 4080 SUPER rental page for last-seen listed prices and a price alert.
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When to Choose the RTX 4080 SUPER
The RTX 4080 SUPER variant suits environments where power limits cap consumption at 320W and 16 GB memory meets model size requirements. Its lower TDP allows denser server packing without exceeding rack power budgets while still delivering 48.7 TFLOPS FP32 performance. Workloads that fit within 16 GB and do not require the 1008 GB/s bandwidth of the RTX 4090 family achieve adequate throughput on the RTX 4080 SUPER variant at reduced energy draw.
When to Choose the RTX 4090
Its 165.2 TFLOPS dense FP16 rating accelerates large batch matrix operations beyond the 48.7 TFLOPS level of the RTX 4080 SUPER. Users select the RTX 4090 when memory bandwidth of 1008 GB/s and the 450W TDP envelope support sustained high utilization on memory heavy scientific or generative workloads.
Use Cases
The RTX 4090 variant supplies 24 GB memory and 82.6 TFLOPS FP32 that accommodate larger models than the 16 GB and 48.7 TFLOPS on the RTX 4080 SUPER variant.
Dense FP16 throughput of 165.2 TFLOPS on the RTX 4090 variant exceeds the 48.7 TFLOPS rating of the RTX 4080 SUPER variant and supports bigger batch sizes with 1008 GB/s bandwidth.
The 24 GB capacity and 330.4 TFLOPS FP16 with sparsity on the RTX 4090 variant handle gradient accumulation steps that surpass the limits of the 16 GB RTX 4080 SUPER variant.
Both variants run the workload yet the RTX 4090 variant processes higher resolution images faster due to 24 GB memory while the RTX 4080 SUPER variant suffices for standard resolutions at 320W TDP.
FP32 performance of 82.6 TFLOPS combined with 1008 GB/s bandwidth on the RTX 4090 variant accelerates simulations beyond the 48.7 TFLOPS and 717 GB/s of the RTX 4080 SUPER variant.
Frequently Asked Questions
What memory capacities distinguish the RTX 4080 SUPER variant from the RTX 4090 variant?▾
The RTX 4080 SUPER variant contains 16 GB GDDR6X while the RTX 4090 variant contains 24 GB GDDR6X. Both variants belong to families that share architecture and bandwidth specifications yet differ in these exact memory amounts.
How do FP32 ratings compare between the two variants?▾
The RTX 4090 variant provides 82.6 TFLOPS FP32 whereas the RTX 4080 SUPER variant provides 48.7 TFLOPS FP32. These figures represent family level performance that applies to every variant within each family.
Which variant offers higher dense FP16 throughput?▾
The RTX 4090 variant reaches 165.2 TFLOPS dense FP16 compared with the 48.7 TFLOPS FP16 rating of the RTX 4080 SUPER variant. Direct comparison uses only dense figures because the RTX 4080 SUPER specification does not list a sparsity value.
Do the variants share the same TDP rating?▾
No. The RTX 4080 SUPER family lists 320W TDP while the RTX 4090 family lists 450W TDP. These values apply uniformly to all variants in each family including the specific models compared here.
What interconnect difference exists between the variants?▾
The RTX 4090 variant specifies PCIe 4.0 interconnect while the RTX 4080 SUPER variant lists only PCIe. Both remain within the PCIe form factor category shared by their respective families.
Which is cheaper to rent, the RTX 4080 SUPER or the RTX 4090?▾
Cloud rental prices for both the RTX 4080 SUPER and RTX 4090 vary by provider, configuration, and availability. This page shows live pricing from 25+ providers updated every 60 seconds. Scroll to the Live Cloud Pricing section to compare current rates.
How much VRAM does the RTX 4080 SUPER have compared to the RTX 4090?▾
The RTX 4080 SUPER has 16 GB of GDDR6X memory. The RTX 4090 has 24 GB of GDDR6X memory.
Can I find RTX 4080 SUPER and RTX 4090 GPUs available to rent right now?▾
Yes. This page shows real-time availability across 25+ cloud GPU providers. The Live Cloud Pricing section displays only in-stock offers with current pricing.
What is the main difference between the RTX 4080 SUPER and the RTX 4090?▾
The RTX 4080 SUPER uses the Ada Lovelace architecture (2022) while the RTX 4090 uses Ada Lovelace (2022). The RTX 4090 delivers 1.7x the dense FP16 throughput (165.2 vs 97.5 TFLOPS, both without sparsity) and 1.4x the memory bandwidth of the RTX 4080 SUPER.
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How this page is made
- Specifications come from the NVIDIA, AMD and Intel datasheets for the RTX 4080 SUPER and the RTX 4090. Dense and sparse throughput are listed separately.
- Prices and availability are live: every offer shown is an in-stock, on-demand listing from a provider we track, rechecked every minute.
- The written comparison (overview, performance notes, when to choose each card, verdict, use cases and FAQ) was drafted with an AI model from the specification table above and passed an automated check that rejects any figure not in that table. It was last generated on . It contains no prices; those are always read live.
- Read how we collect the data, or report an error on this page.
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