AMD Radeon R5 M420 vs AMD Radeon R7 M260
Graphics Processor
| GPU model | Jet | Topaz |
|---|---|---|
| GPU variant | Jet PRO (216-0568010) | Topaz XT (216-0864030) |
| Architecture | GCN 1.0 | GCN 3.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 690 million | 1,550 million |
| Die size | 56 mm² | 125 mm² |
Mobile graphics
| Release date | May 15th, 2016 | Jun 11th, 2014 |
|---|---|---|
| Generation | Crystal System (R5 M400) | Crystal System (R7 M200) |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x8 |
| Predecessor | Solar System | Solar System |
| Successor | Mobility Radeon | Mobility Radeon |
Clocks
| Base clock | 780 MHz | 940 MHz |
|---|---|---|
| Boost clock | 850 MHz | 980 MHz |
| Memory clock | 1000 MHz 2 Gbps effective | 900 MHz 1800 Mbps effective |
Memory Configuration
| Memory size | 4 GB | 2 GB |
|---|---|---|
| Memory type | DDR3 | DDR3 |
| Memory bus width | 64 bit | 64 bit |
| Bandwidth | 16.00 GB/s | 14.40 GB/s |
Render Configuration
| Shading units | 320 | 384 |
|---|---|---|
| TMUs | 20 | 24 |
| ROPs | 8 | 8 |
| Compute units | 5 | 6 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 128 KB | 128 KB |
Performance
| Pixel rate | 6.800 GPixel/s | 7.840 GPixel/s |
|---|---|---|
| Texture rate | 17.00 GTexel/s | 23.52 GTexel/s |
| FP32 (float) performance | 544.0 GFLOPS | 752.6 GFLOPS |
| FP64 (double) performance | 34.00 GFLOPS (1:16) | 47.04 GFLOPS (1:16) |
| FP16 (half) performance | — | 752.6 GFLOPS (1:1) |
Dimensions & Outputs
| Slot width | IGP | — |
|---|---|---|
| TDP | unknown | unknown |
| Outputs | No outputs | No outputs |
| Board number | — | C720 |
API Support & Features
| DirectX | 12 (11_1) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 6.3 |
