NVIDIA GeForce RTX 3080 Ti vs NVIDIA GeForce RTX 3080 Ti 20 GB
Graphics Processor
| GPU model | GA102 | GA102 |
|---|---|---|
| GPU variant | GA102-300-A1 | GA102-225-A1 |
| Architecture | Ampere | Ampere |
| Foundry | TSMC | Samsung |
| Manufacturing process | 7 nm | 8 nm |
| Number of transistors | 40,000 million | 28,300 million |
| Die size | 627 mm² | 628 mm² |
Graphics Card
| Release date | 2020 | Jan 2022 |
|---|---|---|
| Generation | GeForce 30 | GeForce 30 |
| Production | Unreleased | Active |
| Launch price | 1,399 USD | 1,199 USD |
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| gpu.details.availability | — | 2022 |
| Predecessor | — | GeForce 20 |
| Reviews | — | 50 in our database |
Clocks
| Base clock | 1410 MHz | 1335 MHz |
|---|---|---|
| Boost clock | 1740 MHz | 1665 MHz |
| Memory clock | 2375 MHz 19000 MHz effective | 1188 MHz 19 Gbps effective |
Memory Configuration
| Memory size | 12 GB | 20 GB |
|---|---|---|
| Memory type | GDDR6X | GDDR6X |
| Memory bus width | 384 bit | 320 bit |
| Bandwidth | 912.0 GB/s | 760.3 GB/s |
Render Configuration
| Shading units | 5120 | 10240 |
|---|---|---|
| TMUs | 320 | 320 |
| ROPs | 96 | 112 |
| SM count | 80 | 80 |
| Tensor cores | 640 | 320 |
| RT cores | 160 | 80 |
| Cache L1 | 192 KB (per SM) | 128 KB (per SM) |
| Cache L2 | 6 MB | 6 MB |
Performance
| Pixel rate | 167.0 GPixel/s | 186.5 GPixel/s |
|---|---|---|
| Texture rate | 556.8 GTexel/s | 532.8 GTexel/s |
| FP16 (half) performance | 35.64 TFLOPS (2:1) | 34.10 TFLOPS (1:1) |
| FP32 (float) performance | 17.82 TFLOPS | 34.10 TFLOPS |
| FP64 (double) performance | 556.8 GFLOPS (1:32) | 532.8 GFLOPS (1:64) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 267 mm 10.5 inches | 285 mm 11.2 inches |
| TDP | 320 W | 350 W |
| Suggested PSU | 700 W | 750 W |
| Outputs | 1x HDMI3x DisplayPort1x USB Type-C | 1x HDMI3x DisplayPort |
| Power connectors | 1x 12-pin | 1x 12-pin |
| Board number | PG132 SKU 20 | — |
| Width | — | 112 mm 4.4 inches |
| Height | — | 40 mm 1.6 inches |
API Support & Features
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 3.0 |
| Vulkan | 1.2.140 | 1.2 |
| CUDA | 8.5 | 8.6 |
| Shader model | 6.5 | 6.6 |
