NVIDIA A30 PCIe vs NVIDIA A40 PCIe
Graphics Processor
| GPU model | GA100 | GA102 |
|---|---|---|
| Architecture | Ampere | Ampere |
| Foundry | TSMC | Samsung |
| Manufacturing process | 7 nm | 8 nm |
| Number of transistors | 54,200 million | 28,300 million |
| Die size | 826 mm² | 628 mm² |
Graphics Card
| Release date | Apr 12th, 2021 | Oct 5th, 2020 |
|---|---|---|
| gpu.details.availability | 2021 | 2021 |
| Generation | Tesla | Tesla |
| Production | Active | Active |
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
Clocks
| Base clock | 930 MHz | 1305 MHz |
|---|---|---|
| Boost clock | 1440 MHz | 1740 MHz |
| Memory clock | 1215 MHz 2.4 Gbps effective | 1812 MHz 14.5 Gbps effective |
Memory Configuration
| Memory size | 24 GB | 48 GB |
|---|---|---|
| Memory type | HBM2 | GDDR6 |
| Memory bus width | 3072 bit | 384 bit |
| Bandwidth | 933.1 GB/s | 695.8 GB/s |
Render Configuration
| Shading units | 3584 | 10752 |
|---|---|---|
| TMUs | 224 | 336 |
| ROPs | 96 | 112 |
| SM count | 56 | 84 |
| Tensor cores | 224 | 336 |
| Cache L1 | 192 KB (per SM) | 128 KB (per SM) |
| Cache L2 | 24 MB | 6 MB |
| RT cores | — | 84 |
Performance
| Pixel rate | 138.2 GPixel/s | 194.9 GPixel/s |
|---|---|---|
| Texture rate | 322.6 GTexel/s | 584.6 GTexel/s |
| FP16 (half) performance | 10.32 TFLOPS (1:1) | 37.42 TFLOPS (1:1) |
| FP32 (float) performance | 10.32 TFLOPS | 37.42 TFLOPS |
| FP64 (double) performance | 5.161 TFLOPS (1:2) | 1,169 GFLOPS (1:32) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 267 mm 10.5 inches | 267 mm 10.5 inches |
| Width | 112 mm 4.4 inches | 112 mm 4.4 inches |
| TDP | 165 W | 300 W |
| Suggested PSU | 450 W | 700 W |
| Outputs | No outputs | 3x DisplayPort |
| Power connectors | 8-pin EPS | 8-pin EPS |
| Board number | P1001 SKU 205 | — |
API Support & Features
| DirectX | — | 12 Ultimate (12_2) |
|---|---|---|
| OpenGL | — | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | — | 1.2 |
| CUDA | 8.0 | 8.6 |
| Shader model | — | 6.6 |
