AMD Radeon R5 M420 vs NVIDIA GeForce GT 425M
Graphics Processor
| GPU model | Jet | GF108 |
|---|---|---|
| GPU variant | Jet PRO (216-0568010) | N11P-GS-A1 |
| Architecture | GCN 1.0 | Fermi |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 40 nm |
| Number of transistors | 690 million | 585 million |
| Die size | 56 mm² | 116 mm² |
Mobile graphics
| Release date | May 15th, 2016 | Sep 3rd, 2010 |
|---|---|---|
| Generation | Crystal System (R5 M400) | GeForce 400M |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x8 | PCIe 2.0 x16 |
| Predecessor | Solar System | GeForce 300M |
| Successor | Mobility Radeon | GeForce 500M |
Clocks
| Base clock | 780 MHz | — |
|---|---|---|
| Boost clock | 850 MHz | — |
| Memory clock | 1000 MHz 2 Gbps effective | 800 MHz 1600 Mbps effective |
| GPU clock | — | 560 MHz |
| Shader clock | — | 1120 MHz |
Memory Configuration
| Memory size | 4 GB | 1024 MB |
|---|---|---|
| Memory type | DDR3 | DDR3 |
| Memory bus width | 64 bit | 128 bit |
| Bandwidth | 16.00 GB/s | 25.60 GB/s |
Render Configuration
| Shading units | 320 | 96 |
|---|---|---|
| TMUs | 20 | 16 |
| ROPs | 8 | 4 |
| Compute units | 5 | — |
| Cache L1 | 16 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 128 KB | 256 KB |
| SM count | — | 2 |
Performance
| Pixel rate | 6.800 GPixel/s | 2.240 GPixel/s |
|---|---|---|
| Texture rate | 17.00 GTexel/s | 8.960 GTexel/s |
| FP32 (float) performance | 544.0 GFLOPS | 215.0 GFLOPS |
| FP64 (double) performance | 34.00 GFLOPS (1:16) | 17.92 GFLOPS (1:12) |
Dimensions & Outputs
| Slot width | IGP | — |
|---|---|---|
| TDP | unknown | 23 W |
| Outputs | No outputs | No outputs |
API Support & Features
| DirectX | 12 (11_1) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.2 | — |
| Shader model | 5.1 | 5.1 |
| CUDA | — | 2.1 |
