NVIDIA L20
NVIDIA graphics card specifications and benchmark scores
Ray Tracing
Tensor CoresAt a Glance
NVIDIANVIDIA L20 Specifications
GPU Core
Shader units and compute resources
The NVIDIA L20 GPU core specifications define its raw processing power for graphics and compute workloads. Shading units (also called CUDA cores, stream processors, or execution units depending on manufacturer) handle the parallel calculations required for rendering. TMUs (Texture Mapping Units) process texture data, while ROPs (Render Output Units) handle final pixel output. Higher shader counts generally translate to better GPU benchmark performance, especially in demanding games and 3D applications.
L20 Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the L20's performance in GPU benchmarks and real-world gaming. The base clock represents the minimum guaranteed frequency, while the boost clock indicates peak performance under optimal thermal conditions. Memory clock speed affects texture loading and frame buffer operations. The L20 by NVIDIA dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
NVIDIA's L20 Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The L20's memory capacity determines how well it handles high-resolution textures and multiple displays. Memory bandwidth, measured in GB/s, affects how quickly data moves between the GPU and VRAM. Higher bandwidth improves performance in memory-intensive scenarios like 4K gaming. The memory bus width and type (GDDR6, GDDR6X, HBM) significantly influence overall GPU benchmark scores.
L20 by NVIDIA Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the L20, reducing the need to fetch data from slower VRAM. L1 and L2 caches store frequently accessed data close to the compute units. AMD's Infinity Cache (L3) dramatically increases effective bandwidth, improving GPU benchmark performance without requiring wider memory buses. Larger cache sizes help maintain high frame rates in memory-bound scenarios and reduce power consumption by minimizing VRAM accesses.
L20 Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the NVIDIA L20 against other graphics cards. FP32 (single-precision) performance, measured in TFLOPS, indicates compute capability for gaming and general GPU workloads. FP64 (double-precision) matters for scientific computing. Pixel and texture fill rates determine how quickly the GPU can render complex scenes. While real-world GPU benchmark results depend on many factors, these specifications help predict relative performance levels.
L20 Ray Tracing & AI
Hardware acceleration features
The NVIDIA L20 includes dedicated hardware for ray tracing and AI acceleration. RT cores handle real-time ray tracing calculations for realistic lighting, reflections, and shadows in supported games. Tensor cores (NVIDIA) or XMX cores (Intel) accelerate AI workloads including DLSS, FSR, and XeSS upscaling technologies. These features enable higher visual quality without proportional performance costs, making the L20 capable of delivering both stunning graphics and smooth frame rates in modern titles.
Ada Lovelace Architecture & Process
Manufacturing and design details
The NVIDIA L20 is built on NVIDIA's Ada Lovelace architecture, which defines how the GPU processes graphics and compute workloads. The manufacturing process node affects power efficiency, thermal characteristics, and maximum clock speeds. Smaller process nodes pack more transistors into the same die area, enabling higher performance per watt. Understanding the architecture helps predict how the L20 will perform in GPU benchmarks compared to previous generations.
Power & Thermal
TDP and power requirements
Power specifications for the NVIDIA L20 determine PSU requirements and thermal management needs. TDP (Thermal Design Power) indicates the heat output under typical loads, guiding cooler selection. Power connector requirements ensure adequate power delivery for stable operation during demanding GPU benchmarks. The suggested PSU wattage accounts for the entire system, not just the graphics card. Efficient power delivery enables the L20 to maintain boost clocks without throttling.
L20 by NVIDIA Physical & Connectivity
Dimensions and outputs
Physical dimensions of the NVIDIA L20 are critical for case compatibility. Card length, height, and slot width determine whether it fits in your chassis. The PCIe interface version affects bandwidth for communication with the CPU. Display outputs define monitor connectivity options, with modern cards supporting multiple high-resolution displays simultaneously. Verify these specifications against your case and motherboard before purchasing to ensure a proper fit.
NVIDIA API Support
Graphics and compute APIs
API support determines which games and applications can fully utilize the NVIDIA L20. DirectX 12 Ultimate enables advanced features like ray tracing and variable rate shading. Vulkan provides cross-platform graphics capabilities with low-level hardware access. OpenGL remains important for professional applications and older games. CUDA (NVIDIA) and OpenCL enable GPU compute for video editing, 3D rendering, and scientific applications. Higher API versions unlock newer graphical features in GPU benchmarks and games.
L20 Product Information
Release and pricing details
The NVIDIA L20 is manufactured by NVIDIA as part of their graphics card lineup. Release date and launch pricing provide context for comparing GPU benchmark results with competing products from the same era. Understanding the product lifecycle helps evaluate whether the L20 by NVIDIA represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
About NVIDIA L20
The NVIDIA L20 is an active server GPU from the Ada Lovelace generation, built on TSMC's 5 nm process and based on the AD102 chip. That die contains 76,300 million transistors on a 609 mm² package, and the card itself carries 48 GB of GDDR6 memory on a 384-bit bus. With a 275 W TDP, a dual-slot cooler, and a single 16-pin power input, it fits into the server Ada (Lxx) product line. Its Geekbench OpenCL score is 266428, putting it at the 99th percentile among all GPUs in the database.
Benchmark Performance
The primary benchmark result for the NVIDIA L20 is a Geekbench OpenCL score of 266428, and its average benchmark score is identical at 266428. That places the L20 at the 99th percentile of all GPUs, which means it is above nearly every device in the database. The nearest rival comparisons show where the L20 sits within the high-end server field: the NVIDIA L40 scores 281655, the NVIDIA RTX 6000 Ada Generation scores 281932, the NVIDIA L40S scores 292603, and the NVIDIA H200 NVL scores 305608. The L20 is therefore 5.4% behind the L40, 5.5% behind the RTX 6000 Ada Generation, 8.9% behind the L40S, and 12.8% behind the H200 NVL.
The practical picture is that the L20 is not the top Ada server card, but it is close to the next two alternatives. The gap to the L40 and RTX 6000 Ada Generation is under 6%, which is a modest difference in aggregate compute. The L40S opens a nearly 9% lead, and the H200 NVL is more clearly ahead at 12.8%. For a workload that is bound by this OpenCL benchmark, the L20 should deliver performance broadly in line with the L40 and RTX 6000 Ada Generation while sitting a step below the L40S and H200 NVL.
Raw compute resources help explain this position. The L20 has 11776 shading units, 368 texture mapping units, and 128 ROPs. It also has 92 RT cores and 368 tensor cores. Peak FP32 throughput is 59.35 TFLOPS, and FP16 throughput is also 59.35 TFLOPS at a 1:1 ratio. Texture rate is 927.4 GTexel/s, while pixel rate is 322.6 GPixel/s. Those numbers are consistent with a card that has high throughput but is not the absolute fastest in its rival set.
Power and Cooling
The NVIDIA L20 has a TDP of 275 W. The recommended power supply is 600 W, and the card requires one 16-pin power connector. That makes the power delivery simple to plan for: a single connector from a capable power supply is sufficient. The dual-slot cooler is standard for this class of accelerator, and the card’s physical dimensions are 267 mm in length, or 10.5 inches, and 111 mm in height, or 4.4 inches. Those dimensions mean it should fit in most server chassis and large workstation cases without unusual clearance requirements.
The 5 nm process helps keep the thermal design within a 275 W envelope. For a GPU with 48 GB of memory and 11776 shading units, a 275 W TDP is a moderate power target, and the 600 W suggested power supply includes enough headroom for the card plus typical host components. The connector count is minimal, so cable management is not a concern with this board.
Ray Tracing and Feature Set
The L20 is built on the Ada Lovelace architecture and includes dedicated ray tracing hardware. It has 92 RT cores, supported by 368 tensor cores. The tensor cores provide matrix compute for AI and machine-learning workloads, while the RT cores handle hardware-accelerated ray tracing. Both are backed by 11776 shading units, 368 TMUs, and 128 ROPs. This is a server-oriented card, but the hardware feature set is full modern NVIDIA.
The API support confirms that breadth. The L20 supports DirectX 12 Ultimate with the 12_2 feature level, OpenGL 4.6, and Vulkan 1.4. DirectX 12 Ultimate support means the card exposes the full 12_2 feature set, while OpenGL and Vulkan cover compute and rendering workloads that rely on those APIs. The board also has 4x DisplayPort 1.4a outputs, so it can drive displays directly. FP16 is supported at 59.35 TFLOPS with a 1:1 ratio to FP32, which matters for workloads that can use half-precision throughput.
FAQ
Q: What is the NVIDIA L20’s benchmark performance?
A: The L20 scores 266428 in Geekbench OpenCL, with the same average benchmark score of 266428. That puts it at the 99th percentile of all GPUs.
Q: How much memory does the L20 have, and what is its bandwidth?
A: It has 48 GB of GDDR6 memory on a 384-bit bus. The memory clock is 2250 MHz, or 18 Gbps effective, yielding 864.0 GB/s of bandwidth.
Q: What power supply and connector are recommended?
A: The L20 has a 275 W TDP, a suggested 600 W power supply, and uses one 16-pin power connector.
Q: How does the L20 compare to the NVIDIA L40?
A: The L40 has an average score of 281655, which is 5.4% higher than the L20’s 266428.
Q: Which APIs does the L20 support?
A: It supports DirectX 12 Ultimate with the 12_2 feature level, OpenGL 4.6, and Vulkan 1.4.
Q: What are the L20’s dimensions?
A: The card is dual-slot, 267 mm or 10.5 inches long, and 111 mm or 4.4 inches high.
How It Compares
NVIDIA L40: The L40 is the closest listed rival, with an average score of 281655. The L20 is 5.4% behind, making this a relatively small gap in aggregate performance.
NVIDIA RTX 6000 Ada Generation: The RTX 6000 Ada Generation averages 281932, which is 5.5% higher than the L20. This puts the L20 and RTX 6000 Ada Generation at nearly the same level in this benchmark.
NVIDIA L40S: The L40S averages 292603, giving it an 8.9% lead over the L20. That is a more noticeable difference, though still under 10%.
NVIDIA H200 NVL: The H200 NVL averages 305608, which is 12.8% higher than the L20. This is the largest deficit among the listed rivals, separating the L20 from the top score in this comparison group.
Memory Subsystem
The memory subsystem is a major part of the L20’s positioning. It uses 48 GB of GDDR6, not a more exotic memory type, but the 384-bit bus provides substantial bandwidth. The memory clock is 2250 MHz, or 18 Gbps effective, and total bandwidth is 864.0 GB/s. That is a large amount of memory and a wide bus, which matters for workloads where the entire dataset or scene needs to stay resident on the GPU.
For high-resolution rendering, 48 GB of VRAM allows large textures, geometry, and render targets to remain local. The 384-bit bus and 864.0 GB/s bandwidth help keep the 11776 shading units and 92 RT cores supplied with data. A narrower bus would struggle to feed that many compute units, but the 384-bit interface is well matched to the card’s compute capacity. Pixel rate is 322.6 GPixel/s and texture rate is 927.4 GTexel/s, both of which depend heavily on memory bandwidth. The PCIe 4.0 x16 host interface handles transfers to system memory, while the 48 GB local pool handles the heavy lifting.
Detailed benchmark scores and charts for the NVIDIA L20 are below.
Benchmark Scores
geekbench_openclSource
Geekbench OpenCL tests GPU compute performance using the cross-platform OpenCL API. This shows how NVIDIA L20 handles parallel computing tasks like video encoding and scientific simulations. OpenCL is widely supported across different GPU vendors and platforms. Higher scores benefit applications that leverage GPU acceleration for non-graphics workloads.
Top 5 Performers
Top 5 PerformersNearby Performers
Nearby Performersgeekbench_vulkanSource
Geekbench Vulkan tests GPU compute using the modern low-overhead Vulkan API. This shows how NVIDIA L20 performs with next-generation graphics and compute workloads.
Top 5 Performers
Nearby Performers
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