Quadro 4000 Mac Edition vs Quadro K420
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 906 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.08 | no data |
| Power efficiency | 3.21 | no data |
| Architecture | Kepler (2012−2018) | Fermi (2010−2014) |
| GPU code name | GK107 | GF100 |
| Market segment | Workstation | Workstation |
| Release date | 22 July 2014 (10 years ago) | 12 June 2011 (13 years ago) |
| Launch price (MSRP) | $96.67 | $1,199 |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 192 | 256 |
| Core clock speed | 876 MHz | 475 MHz |
| Number of transistors | 1,270 million | 3,100 million |
| Manufacturing process technology | 28 nm | 40 nm |
| Power consumption (TDP) | 41 Watt | 142 Watt |
| Texture fill rate | 14.02 | 15.20 |
| Floating-point processing power | 0.3364 TFLOPS | 0.4864 TFLOPS |
| ROPs | 16 | 32 |
| TMUs | 16 | 32 |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Length | 160 mm | 241 mm |
| Width | 1" (2.5 cm) | 2-slot |
| Supplementary power connectors | None | 1x 6-pin |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | 128 Bit | GDDR5 |
| Maximum RAM amount | 1 GB/2 GB | 1792 MB |
| Memory bus width | 128 Bit | 256 Bit |
| Memory clock speed | 891 MHz | 702 MHz |
| Memory bandwidth | Up to 29 GB/s | 89.86 GB/s |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | 1x DVI, 1x DisplayPort | 1x DVI, 1x DisplayPort, 1x S-Video |
| Number of simultaneous displays | 4 | no data |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| 3D Vision Pro | + | no data |
| Mosaic | + | no data |
| nView Desktop Management | + | no data |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.5 | 4.6 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.1.126 | N/A |
| CUDA | 3.0 | 2.0 |
Pros & cons summary
| Recency | 22 July 2014 | 12 June 2011 |
| Maximum RAM amount | 1 GB/2 GB | 1792 MB |
| Chip lithography | 28 nm | 40 nm |
| Power consumption (TDP) | 41 Watt | 142 Watt |
Quadro K420 has an age advantage of 3 years, a 42.9% more advanced lithography process, and 246.3% lower power consumption.
4000 Mac Edition, on the other hand, has a 75% higher maximum VRAM amount.
We couldn't decide between Quadro K420 and Quadro 4000 Mac Edition. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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