NVIDIA GeForce GT 420 OEM vs NVIDIA GeForce GT 520 OEM
Graphics Processor
| GPU model | GF108 | GF108 |
|---|---|---|
| GPU variant | GF108-200-A1 | GF108-200-A1 |
| Architecture | Fermi | Fermi |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 40 nm |
| Number of transistors | 585 million | 585 million |
| Die size | 116 mm² | 116 mm² |
Graphics Card
| Release date | Sep 3rd, 2010 | Feb 1st, 2012 |
|---|---|---|
| Generation | GeForce 400 | GeForce 500 |
| Production | End-of-life | End-of-life |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Predecessor | GeForce 200 | GeForce 400 |
| Successor | GeForce 500 | GeForce 600 |
Clocks
| GPU clock | 700 MHz | 700 MHz |
|---|---|---|
| Shader clock | 1400 MHz | 1400 MHz |
| Memory clock | 900 MHz 1800 Mbps effective | 667 MHz 1334 Mbps effective |
Memory Configuration
| Memory size | 1024 MB | 1024 MB |
|---|---|---|
| Memory type | DDR3 | DDR3 |
| Memory bus width | 128 bit | 64 bit |
| Bandwidth | 28.80 GB/s | 10.67 GB/s |
Render Configuration
| Shading units | 48 | 48 |
|---|---|---|
| TMUs | 4 | 8 |
| ROPs | 4 | 2 |
| SM count | 1 | 1 |
| Cache L1 | 64 KB (per SM) | 64 KB (per SM) |
| Cache L2 | 256 KB | 128 KB |
Performance
| Pixel rate | 1.400 GPixel/s | 1.400 GPixel/s |
|---|---|---|
| Texture rate | 2.800 GTexel/s | 5.600 GTexel/s |
| FP32 (float) performance | 134.4 GFLOPS | 134.4 GFLOPS |
| FP64 (double) performance | 11.20 GFLOPS (1:12) | 11.20 GFLOPS (1:12) |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| Length | 145 mm 5.7 inches | 145 mm 5.7 inches |
| TDP | 50 W | 29 W |
| Suggested PSU | 250 W | 200 W |
| Outputs | 1x DVI1x HDMI1x VGA | 1x DVI1x HDMI1x VGA |
| Power connectors | None | None |
| Board number | P1071 | P1071 |
API Support & Features
| DirectX | 12 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | — | — |
| CUDA | 2.1 | 2.1 |
| Shader model | 5.1 | 5.1 |
