AMD Radeon RX 560X Mobile vs NVIDIA GeForce GTX 660 OEM
Graphics Processor
| GPU model | Polaris 21 | GK104 |
|---|---|---|
| GPU variant | Polaris 21M XT | GK104-200-KD-A2 |
| Architecture | GCN 4.0 | Kepler |
| Foundry | GlobalFoundries | TSMC |
| Manufacturing process | 14 nm | 28 nm |
| Number of transistors | 3,000 million | 3,540 million |
| Die size | 123 mm² | 294 mm² |
Mobile graphics
| Release date | Apr 11th, 2018 | — |
|---|---|---|
| Generation | Mobility Radeon (RX M500X) | — |
| Production | Active | — |
| Interface | MXM-B (3.0) | — |
| Predecessor | Crystal System | — |
Clocks
| GPU clock | 1275 MHz | — |
|---|---|---|
| Memory clock | 1450 MHz 5.8 Gbps effective | 1400 MHz 5.6 Gbps effective |
| Base clock | — | 823 MHz |
| Boost clock | — | 888 MHz |
Memory Configuration
| Memory size | 4 GB | 1536 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 192 bit |
| Bandwidth | 92.80 GB/s | 134.4 GB/s |
Render Configuration
| Shading units | 1024 | 1152 |
|---|---|---|
| TMUs | 64 | 96 |
| ROPs | 16 | 24 |
| Compute units | 16 | — |
| Cache L1 | 16 KB (per CU) | 16 KB (per SMX) |
| Cache L2 | 1024 KB | 384 KB |
| SMX count | — | 6 |
Performance
| Pixel rate | 20.40 GPixel/s | 21.31 GPixel/s |
|---|---|---|
| Texture rate | 81.60 GTexel/s | 85.25 GTexel/s |
| FP16 (half) performance | 2.611 TFLOPS (1:1) | — |
| FP32 (float) performance | 2.611 TFLOPS | 2.046 TFLOPS |
| FP64 (double) performance | 163.2 GFLOPS (1:16) | 85.25 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | MXM Module | Dual-slot |
|---|---|---|
| TDP | 65 W | 130 W |
| Outputs | No outputs | 2x DVI1x HDMI1x DisplayPort |
| Power connectors | None | 1x 6-pin |
| Length | — | 241 mm 9.5 inches |
| Suggested PSU | — | 300 W |
| Board number | — | P2004 |
API Support & Features
| DirectX | 12 (12_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader model | 6.4 | 5.1 |
| CUDA | — | 3.0 |
Other Features
Graphics Card
| Release date | — | Aug 22nd, 2012 |
|---|---|---|
| Generation | — | GeForce 600 |
| Production | — | End-of-life |
| Interface | — | PCIe 3.0 x16 |
| Reviews | — | 77 in our database |
| Predecessor | — | GeForce 500 |
| Successor | — | GeForce 700 |
