RTX PRO 4500 Blackwell vs L20
Aggregate performance score
We've compared L20 and RTX PRO 4500 Blackwell, covering specs and all relevant benchmarks.
RTX PRO 4500 Blackwell outperforms L20 by a whopping 118% 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 | 181 | 18 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 8.88 | 26.62 |
| Architecture | Ada Lovelace (2022−2024) | Blackwell 2.0 (2025) |
| GPU code name | AD102 | GB203 |
| Market segment | Workstation | Workstation |
| Release date | 16 November 2023 (1 year ago) | 18 March 2025 (less than a year ago) |
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 | 11776 | 10496 |
| Core clock speed | 1440 MHz | 1590 MHz |
| Boost clock speed | 2520 MHz | 2617 MHz |
| Number of transistors | 76,300 million | 45,600 million |
| Manufacturing process technology | 5 nm | 5 nm |
| Power consumption (TDP) | 275 Watt | 200 Watt |
| Texture fill rate | 927.4 | 858.4 |
| Floating-point processing power | 59.35 TFLOPS | 54.94 TFLOPS |
| ROPs | 128 | 112 |
| TMUs | 368 | 328 |
| Tensor Cores | 368 | 328 |
| Ray Tracing Cores | 92 | 82 |
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 4.0 x16 | PCIe 5.0 x16 |
| Length | 267 mm | 267 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1x 16-pin | 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 | GDDR6 | GDDR7 |
| Maximum RAM amount | 48 GB | 32 GB |
| Memory bus width | 384 Bit | 256 Bit |
| Memory clock speed | 2250 MHz | 1750 MHz |
| Memory bandwidth | 864.0 GB/s | 896.0 GB/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 | 4x DisplayPort 1.4a | 4x DisplayPort 2.1b |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
| Shader Model | 6.7 | 6.8 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.3 | 1.4 |
| CUDA | 8.9 | 12.0 |
| DLSS | + | + |
Synthetic benchmark performance
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 | 32.05 | 69.85 |
| Recency | 16 November 2023 | 18 March 2025 |
| Maximum RAM amount | 48 GB | 32 GB |
| Power consumption (TDP) | 275 Watt | 200 Watt |
L20 has a 50% higher maximum VRAM amount.
RTX PRO 4500 Blackwell, on the other hand, has a 117.9% higher aggregate performance score, an age advantage of 1 year, and 37.5% lower power consumption.
The RTX PRO 4500 Blackwell is our recommended choice as it beats the L20 in performance tests.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
