GPU model | R420 | GM20B |
---|---|---|
GPU variant | R420 AIW | TM670D-A1 |
Architecture | R400 | Maxwell 2.0 |
Foundry | TSMC | TSMC |
Manufacturing process | 130 nm | 20 nm |
Number of transistors | 160 million | 2,000 million |
Die size | 281 mm² | 118 mm² |
Release date | Apr 27th, 2005 | — |
---|---|---|
Generation | All-In-Wonder | — |
Production | End-of-life | — |
Interface | AGP 8x | — |
Reviews | 226 in our database | — |
GPU clock | 425 MHz | 1000 MHz |
---|---|---|
Memory clock | 400 MHz 800 Mbps effective | System Shared |
Memory size | 256 MB | System Shared |
---|---|---|
Memory type | GDDR3 | System Shared |
Memory bus width | 256 bit | System Shared |
Bandwidth | 25.60 GB/s | System Dependent |
Pixel shaders | 8 | — |
---|---|---|
Vertex shaders | 6 | — |
TMUs | 8 | 16 |
ROPs | 8 | 16 |
Shading units | — | 256 |
SMM count | — | 2 |
Cache L1 | — | 48 KB (per SMM) |
Cache L2 | — | 256 KB |
Pixel rate | 3.400 GPixel/s | 16.00 GPixel/s |
---|---|---|
Vertex rate | 637.5 MVertices/s | — |
Texture rate | 3.400 GTexel/s | 16.00 GTexel/s |
FP16 (half) performance | — | 1,024 GFLOPS (2:1) |
FP32 (float) performance | — | 512.0 GFLOPS |
FP64 (double) performance | — | 16.00 GFLOPS (1:32) |
Slot width | Single-slot | IGP |
---|---|---|
TDP | unknown | 15 W |
Suggested PSU | 200 W | — |
Outputs | 1x DVI | No outputs |
Power connectors | None | — |
Board number | A383-04 | — |
Part number | 100-714218 | — |
DirectX | 9.0b (9_2) | 12 (12_1) |
---|---|---|
OpenGL | 2.1 | 4.6 |
OpenCL | — | 1.2 |
Vulkan | — | 1.1 |
Pixel shader | 2.0b | — |
Vertex shader | 2.0b | — |
CUDA | — | 5.3 |
Shader model | — | 6.4 |
Release date | — | Jan 4th, 2015 |
---|---|---|
Generation | — | Tegra |
Production | — | End-of-life |
Interface | — | IGP |