Blackwell
NVIDIA RTX 5070 12GB
wins
1
The RTX 5070 is NVIDIA's entry Blackwell consumer GPU with 12 GB GDDR7 and 348 TFLOPS FP16.
Blackwell
NVIDIA RTX 5080 16GB
wins
4
The RTX 5080 is NVIDIA's mid-tier Blackwell consumer GPU with 16 GB GDDR7 and 551 TFLOPS FP16.
Performance comparison
Visual bars — winner highlighted
NVIDIA RTX 5070 12GB
Metric
NVIDIA RTX 5080 16GB
FP16 TFLOPS
Bandwidth
VRAM
TDP (lower=better)
TFLOPS/watt
GB/s per watt
Full specification table
| Spec | NVIDIA RTX 5070 12GB | NVIDIA RTX 5080 16GB |
|---|---|---|
| Architecture | Blackwell | Blackwell |
| VRAM | 12 GB GDDR7 | 16 GB GDDR7 |
| VRAM type | GDDR7 | GDDR7 |
| Memory bandwidth | 672 GB/s | 960 GB/s |
| FP16 TFLOPS | 348 TFLOPS | 551 TFLOPS |
| TDP | 250 W | 360 W |
| TFLOPS/watt | 1.39 T/W | 1.53 T/W |
| GB/s per watt | 2.69 GB/s/W | 2.67 GB/s/W |
| NVLink | No | No |
| Release year | 2025 | 2025 |
Live cloud pricing
On-demand pricing across providers — updated in real time
Power efficiency analysis
TFLOPS/watt and GB/s/watt — critical for data center TCO
NVIDIA RTX 5070 12GB
NVIDIA RTX 5080 16GB
TFLOPS/watt measures compute efficiency — how much AI throughput you get per watt of power consumed. For data centers with PUE of 1.2–1.5, a 10% improvement in TFLOPS/watt translates directly to lower electricity costs and cooling requirements. GB/s/watt measures memory bandwidth efficiency, which is the binding constraint for memory-bound LLM inference workloads.
When to choose each GPU
Choose NVIDIA RTX 5070 12GB for:
- Budget inference
- Small model serving
- Entry Blackwell compute
Weaknesses / Limitations
- 12 GB VRAM — only fits quantized models up to ~13B parameters
- No NVLink — cannot pool VRAM
- Consumer GPU — no ECC memory or enterprise support
Choose NVIDIA RTX 5080 16GB for:
- Small-model inference
- Image generation
- Budget Blackwell compute
Weaknesses / Limitations
- 16 GB VRAM — cannot run 34B+ models
- No NVLink — cannot pool VRAM
- Consumer GPU — no ECC memory or enterprise support
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