NVIDIA A100 PCIe 80 GB vs NVIDIA A100 SXM4 40 GB
Graphics Processor
| GPU model | GA100 | GA100 |
|---|---|---|
| Architecture | Ampere | Ampere |
| Foundry | TSMC | TSMC |
| Manufacturing process | 7 nm | 7 nm |
| Number of transistors | 54,200 million | 54,200 million |
| Die size | 826 mm² | 826 mm² |
Graphics Card
| Release date | Jun 28th, 2021 | May 14th, 2020 |
|---|---|---|
| Generation | Tesla | Tesla |
| Production | Active | Active |
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
Clocks
| Base clock | 1065 MHz | 1095 MHz |
|---|---|---|
| Boost clock | 1410 MHz | 1410 MHz |
| Memory clock | 1593 MHz 3.2 Gbps effective | 1215 MHz 2.4 Gbps effective |
| GPU clock | — | 1410 MHz |
Memory Configuration
| Memory size | 80 GB | 40 GB |
|---|---|---|
| Memory type | HBM2e | HBM2E |
| Memory bus width | 5120 bit | 5120 bit |
| Bandwidth | 2,039 GB/s | 1,555 GB/s |
Render Configuration
| Shading units | 6912 | 6912 |
|---|---|---|
| TMUs | 432 | 432 |
| ROPs | 160 | 160 |
| SM count | 108 | 108 |
| Tensor cores | 432 | 432 |
| Cache L1 | 192 KB (per SM) | 192 KB (per SM) |
| Cache L2 | 80 MB | 40 MB |
Performance
| Pixel rate | 225.6 GPixel/s | 225.6 GPixel/s |
|---|---|---|
| Texture rate | 609.1 GTexel/s | 609.1 GTexel/s |
| FP16 (half) performance | 77.97 TFLOPS (4:1) | 77.97 TFLOPS (4:1) |
| FP32 (float) performance | 19.49 TFLOPS | 19.49 TFLOPS |
| FP64 (double) performance | 9.746 TFLOPS (1:2) | 9.746 TFLOPS (1:2) |
Dimensions & Outputs
| Slot width | Dual-slot | IGP |
|---|---|---|
| Length | 267 mm 10.5 inches | — |
| TDP | 250 W | 400 W |
| Suggested PSU | 600 W | 800 W |
| Outputs | No outputs | No outputs |
| Power connectors | 8-pin EPS | None |
| Board number | P1001 SKU 200 | — |
API Support & Features
| DirectX | — | — |
|---|---|---|
| OpenGL | — | — |
| OpenCL | 3.0 | 3.0 |
| Vulkan | — | — |
| CUDA | 8.0 | 8.0 |
| Shader model | — | — |
