AMD Radeon R9 M280X vs NVIDIA GeForce 920A
Graphics Processor
| GPU model | Saturn | GK208B |
|---|---|---|
| GPU variant | Saturn XT | N16V-GM |
| Architecture | GCN 2.0 | Kepler 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 2,080 million | 1,020 million |
| Die size | 160 mm² | 87 mm² |
Mobile graphics
| Release date | Feb 5th, 2015 | Mar 13th, 2015 |
|---|---|---|
| Generation | Crystal System (R9 M200) | GeForce 900A |
| Production | End-of-life | Active |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Predecessor | Solar System | GeForce 800A |
| Successor | Mobility Radeon | — |
Clocks
| Base clock | 900 MHz | — |
|---|---|---|
| Boost clock | 1000 MHz | — |
| Memory clock | 1375 MHz 5.5 Gbps effective | 1001 MHz 2 Gbps effective |
| GPU clock | — | 954 MHz |
Memory Configuration
| Memory size | 4 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | DDR3 |
| Memory bus width | 128 bit | 64 bit |
| Bandwidth | 88.00 GB/s | 16.02 GB/s |
Render Configuration
| Shading units | 896 | 384 |
|---|---|---|
| TMUs | 56 | 32 |
| ROPs | 16 | 8 |
| Compute units | 14 | — |
| Cache L1 | 16 KB (per CU) | 16 KB (per SMX) |
| Cache L2 | 256 KB | 512 KB |
| SMX count | — | 2 |
Performance
| Pixel rate | 16.00 GPixel/s | 7.632 GPixel/s |
|---|---|---|
| Texture rate | 56.00 GTexel/s | 30.53 GTexel/s |
| FP32 (float) performance | 1.792 TFLOPS | 732.7 GFLOPS |
| FP64 (double) performance | 112.0 GFLOPS (1:16) | 30.53 GFLOPS (1:24) |
Dimensions & Outputs
| TDP | unknown | 33 W |
|---|---|---|
| Outputs | No outputs | No outputs |
| Slot width | — | IGP |
API Support & Features
| DirectX | 12 (12_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader model | 6.3 | 5.1 |
| CUDA | — | 3.5 |
