GPU model | Parhelia-512 | GM20B |
---|---|---|
Architecture | Parhelia | Maxwell 2.0 |
Foundry | UMC | TSMC |
Manufacturing process | 150 nm | 20 nm |
Number of transistors | 80 million | 2,000 million |
Die size | 174 mm² | 118 mm² |
GPU variant | — | TM660M-A2 |
Release date | 2001 | — |
---|---|---|
Generation | Parhelia | — |
Production | End-of-life | — |
Interface | PCI-X | — |
Reviews | 5 in our database | — |
GPU clock | 200 MHz | — |
---|---|---|
Memory clock | 250 MHz 500 Mbps effective | System Shared |
Base clock | — | 640 MHz |
Boost clock | — | 921 MHz |
Memory size | 256 MB | System Shared |
---|---|---|
Memory type | DDR | System Shared |
Memory bus width | 64 bit | System Shared |
Bandwidth | 4.000 GB/s | System Dependent |
Pixel shaders | 4 | — |
---|---|---|
Vertex shaders | 4 | — |
TMUs | 16 | 16 |
ROPs | 4 | 16 |
Shading units | — | 128 |
SMM count | — | 1 |
Cache L1 | — | 48 KB (per SMM) |
Cache L2 | — | 256 KB |
Pixel rate | 800.0 MPixel/s | 14.74 GPixel/s |
---|---|---|
Vertex rate | 200.0 MVertices/s | — |
Texture rate | 3.200 GTexel/s | 14.74 GTexel/s |
FP16 (half) performance | — | 471.6 GFLOPS (2:1) |
FP32 (float) performance | — | 235.8 GFLOPS |
FP64 (double) performance | — | 7.368 GFLOPS (1:32) |
Slot width | Single-slot | IGP |
---|---|---|
Length | 190 mm 7.5 inches | 70 mm 2.8 inches |
TDP | unknown | 10 W |
Suggested PSU | 200 W | — |
Outputs | 1x DVI | No outputs |
Power connectors | None | — |
Board number | PH-P256SGF | — |
Width | — | 45 mm 1.8 inches |
DirectX | 8.1 | 12 (12_1) |
---|---|---|
OpenGL | 1.3 | 4.6 |
OpenCL | — | 1.2 |
Vulkan | — | 1.1 |
Pixel shader | 1.3 | — |
Vertex shader | 2.0 | — |
CUDA | — | 5.3 |
Shader model | — | 6.4 |
Release date | — | Mar 2019 |
---|---|---|
Generation | — | Tegra |
Production | — | End-of-life |
Interface | — | IGP |