RTX PRO 5000 Blackwell vs Quadro K420
Aggregate performance score
We've compared Quadro K420 and RTX PRO 5000 Blackwell, covering specs and all relevant benchmarks.
RTX PRO 5000 Blackwell outperforms K420 by a whopping 5961% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 969 | 1 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.08 | no data |
| Power efficiency | 3.25 | 26.91 |
| Architecture | Kepler (2012−2018) | Blackwell 2.0 (2025−2026) |
| GPU code name | GK107 | GB202 |
| Market segment | Workstation | Workstation |
| Release date | 22 July 2014 (11 years ago) | 18 March 2025 (less than a year ago) |
| Launch price (MSRP) | $96.67 | no data |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
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 | 14080 |
| Core clock speed | 876 MHz | 1740 MHz |
| Boost clock speed | no data | 2377 MHz |
| Number of transistors | 1,270 million | 92,200 million |
| Manufacturing process technology | 28 nm | 5 nm |
| Power consumption (TDP) | 41 Watt | 300 Watt |
| Texture fill rate | 14.02 | 1,045.9 |
| Floating-point processing power | 0.3364 TFLOPS | 66.94 TFLOPS |
| ROPs | 16 | 176 |
| TMUs | 16 | 440 |
| Tensor Cores | no data | 440 |
| Ray Tracing Cores | no data | 110 |
| L1 Cache | 16 KB | 13.8 MB |
| L2 Cache | 256 KB | 96 MB |
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 5.0 x16 |
| Length | 160 mm | 267 mm |
| Width | 1" (2.5 cm) | 2-slot |
| Supplementary power connectors | None | 1x 16-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 | GDDR7 |
| Maximum RAM amount | 1 GB/2 GB | 48 GB |
| Memory bus width | 128 Bit | 384 Bit |
| Memory clock speed | 891 MHz | 1750 MHz |
| Memory bandwidth | Up to 29 GB/s | 1.34 TB/s |
| Resizable BAR | - | + |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | 1x DVI, 1x DisplayPort | 4x DisplayPort 2.1b |
| 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 and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 | 12 Ultimate (12_2) |
| Shader Model | 5.1 | 6.8 |
| OpenGL | 4.5 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.1.126 | 1.4 |
| CUDA | 3.0 | 12.0 |
| DLSS | - | + |
Synthetic benchmarks
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
| Performance score | 1.65 | 100.00 |
| Recency | 22 July 2014 | 18 March 2025 |
| Maximum RAM amount | 1 GB/2 GB | 48 GB |
| Chip lithography | 28 nm | 5 nm |
| Power consumption (TDP) | 41 Watt | 300 Watt |
Quadro K420 has 631.7% lower power consumption.
RTX PRO 5000 Blackwell, on the other hand, has a 5960.6% higher aggregate performance score, an age advantage of 10 years, a 4700% higher maximum VRAM amount, and a 460% more advanced lithography process.
The RTX PRO 5000 Blackwell is our recommended choice as it beats the Quadro K420 in performance tests.
Other comparisons
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