NVIDIA GeForce GT 440 Mac Edition vs XGI Volari Duo V8 Ultra
Graphics Processor
| GPU model | GF108 | XG40 |
|---|---|---|
| GPU variant | GF108-400-A1 | Volari V8 Ultra |
| Architecture | Fermi | XG4 |
| Foundry | TSMC | UMC |
| Manufacturing process | 40 nm | 130 nm |
| Number of transistors | 585 million | 110 million |
| Die size | 116 mm² | unknown |
Graphics Card
| Release date | Feb 9th, 2011 | Sep 15th, 2003 |
|---|---|---|
| Generation | GeForce 400 | XG40 |
| Production | End-of-life | End-of-life |
| Interface | PCIe 1.0 x16 | AGP 8x |
| Reviews | 5 in our database | 6 in our database |
| Predecessor | GeForce 200 | — |
| Successor | GeForce 500 | — |
Clocks
| GPU clock | 810 MHz | 350 MHz |
|---|---|---|
| Shader clock | 1620 MHz | — |
| Memory clock | 667 MHz 1334 Mbps effective | 375 MHz 750 Mbps effective |
Memory Configuration
| Memory size | 1024 MB | 256 MB |
|---|---|---|
| Memory type | DDR3 | DDR |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 21.34 GB/s | 24.00 GB/s |
Render Configuration
| Shading units | 96 | — |
|---|---|---|
| TMUs | 16 | 8 |
| ROPs | 4 | 4 |
| SM count | 2 | — |
| Cache L1 | 64 KB (per SM) | — |
| Cache L2 | 256 KB | — |
| Pixel shaders | — | 4 |
| Vertex shaders | — | 2 |
Performance
| Pixel rate | 3.240 GPixel/s | 1.400 GPixel/s |
|---|---|---|
| Texture rate | 12.96 GTexel/s | 2.800 GTexel/s |
| FP32 (float) performance | 311.0 GFLOPS | — |
| FP64 (double) performance | 25.92 GFLOPS (1:12) | — |
| Vertex rate | — | 175.0 MVertices/s |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| Length | 145 mm 5.7 inches | — |
| TDP | 65 W | unknown |
| Suggested PSU | 250 W | 200 W |
| Outputs | 1x DVI1x HDMI1x VGA | 1x DVI1x VGA1x S-Video |
| Power connectors | None | 2x Molex |
| Board number | P1071 | — |
API Support & Features
| DirectX | 12 (11_0) | 9.0 |
|---|---|---|
| OpenGL | 4.6 | 1.5 |
| OpenCL | 1.1 | — |
| Vulkan | — | — |
| CUDA | 2.1 | — |
| Shader model | 5.1 | — |
| Pixel shader | — | 2.0 |
| Vertex shader | — | 2.0 |
