Home / GPU Comparison / NVIDIA L20 or NVIDIA RTX PRO 5000 Blackwell: What's better?

NVIDIA L20

vs

NVIDIA RTX PRO 5000 Blackwell

GPU Comparison Result

Below are the results of a comparison of NVIDIA L20 and NVIDIA RTX PRO 5000 Blackwell video cards based on key performance characteristics, as well as power consumption and much more.

Advantages

NVIDIA L20

Higher Bandwidth: 864.0 GB/s (864.0 GB/s vs 1.34TB/s)

NVIDIA RTX PRO 5000 Blackwell

Higher Boost Clock: 2617 MHz (2520MHz vs 2617 MHz)
More Shading Units: 14080 (11776 vs 14080)
Newer Launch Date: March 2025 (November 2023 vs March 2025)

Basic

NVIDIA

Label Name

NVIDIA

November 2023

Launch Date

March 2025

Desktop

Platform

Desktop

L20

Model Name

RTX PRO 5000 Blackwell

Tesla Ada

Generation

Blackwell PRO W

1440MHz

Base Clock

1590 MHz

2520MHz

Boost Clock

2617 MHz

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

76,300 million

Transistors

92.2 billion

RT Cores

110

368

Tensor Cores

Tensor Cores are specialized processing units designed specifically for deep learning, providing higher training and inference performance compared to FP32 training. They enable rapid computations in areas such as computer vision, natural language processing, speech recognition, text-to-speech conversion, and personalized recommendations. The two most notable applications of Tensor Cores are DLSS (Deep Learning Super Sampling) and AI Denoiser for noise reduction.

440

368

TMUs

Texture Mapping Units (TMUs) serve as components of the GPU, which are capable of rotating, scaling, and distorting binary images, and then placing them as textures onto any plane of a given 3D model. This process is called texture mapping.

440

TSMC

Foundry

TSMC

5 nm

Process Size

5 nm

Ada Lovelace

Architecture

Blackwell 2.0

Memory Specifications

48GB

Memory Size

48GB

GDDR6

Memory Type

GDDR7

384bit

Memory Bus

The memory bus width refers to the number of bits of data that the video memory can transfer within a single clock cycle. The larger the bus width, the greater the amount of data that can be transmitted instantaneously, making it one of the crucial parameters of video memory. The memory bandwidth is calculated as: Memory Bandwidth = Memory Frequency x Memory Bus Width / 8. Therefore, when the memory frequencies are similar, the memory bus width will determine the size of the memory bandwidth.

384bit

2250MHz

Memory Clock

1750 MHz

864.0 GB/s

Bandwidth

Memory bandwidth refers to the data transfer rate between the graphics chip and the video memory. It is measured in bytes per second, and the formula to calculate it is: memory bandwidth = working frequency × memory bus width / 8 bits.

1.34TB/s

Display and Media

4x DisplayPort 1.4a

Outputs

4x DisplayPort 2.1b

Theoretical Performance

322.6 GPixel/s

Pixel Rate

Pixel fill rate refers to the number of pixels a graphics processing unit (GPU) can render per second, measured in MPixels/s (million pixels per second) or GPixels/s (billion pixels per second). It is the most commonly used metric to evaluate the pixel processing performance of a graphics card.

460.6 GPixel/s

927.4 GTexel/s

Texture Rate

Texture fill rate refers to the number of texture map elements (texels) that a GPU can map to pixels in a single second.

1151 GTexel/s

59.35 TFLOPS

FP16 (half)

An important metric for measuring GPU performance is floating-point computing capability. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy.

73.69 TFLOPS

927.4 GFLOPS

FP64 (double)

An important metric for measuring GPU performance is floating-point computing capability. Double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy, while single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.

1151 GFLOPS

59.35 TFLOPS

FP32 (float)

An important metric for measuring GPU performance is floating-point computing capability. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.

72.216 TFLOPS

Miscellaneous

SM Count

Multiple Streaming Processors (SPs), along with other resources, form a Streaming Multiprocessor (SM), which is also referred to as a GPU's major core. These additional resources include components such as warp schedulers, registers, and shared memory. The SM can be considered the heart of the GPU, similar to a CPU core, with registers and shared memory being scarce resources within the SM.

110

11776

Shading Units

The most fundamental processing unit is the Streaming Processor (SP), where specific instructions and tasks are executed. GPUs perform parallel computing, which means multiple SPs work simultaneously to process tasks.

14080

128 KB (per SM)

L1 Cache

128 KB (per SM)

96MB

L2 Cache

96 MB

275W

TDP

300W

1.3

Vulkan Version

Vulkan is a cross-platform graphics and compute API by Khronos Group, offering high performance and low CPU overhead. It lets developers control the GPU directly, reduces rendering overhead, and supports multi-threading and multi-core processors.

1.4

3.0

OpenCL Version

3.0

4.6

OpenGL

4.6

8.9

CUDA

10.1

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

1x 16-pin

Power Connectors

1x 16-pin

128

ROPs

The Raster Operations Pipeline (ROPs) is primarily responsible for handling lighting and reflection calculations in games, as well as managing effects like anti-aliasing (AA), high resolution, smoke, and fire. The more demanding the anti-aliasing and lighting effects in a game, the higher the performance requirements for the ROPs; otherwise, it may result in a sharp drop in frame rate.

176

6.7

Shader Model

6.8

600W

Suggested PSU

700 W