L20 vs Radeon Pro V620

Place in the ranking	138	188
Place by popularity	not in top-100	not in top-100
Power efficiency	9.58	8.98
Architecture	RDNA 2.0 (2020−2025)	Ada Lovelace (2022−2024)
GPU code name	Navi 21	AD102
Market segment	Workstation	Workstation
Release date	4 November 2021 (4 years ago)	16 November 2023 (2 years 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	4608	11776
Core clock speed	1825 MHz	1440 MHz
Boost clock speed	2200 MHz	2520 MHz
Number of transistors	26,800 million	76,300 million
Manufacturing process technology	7 nm	5 nm
Power consumption (TDP)	300 Watt	275 Watt
Texture fill rate	633.6	927.4
Floating-point processing power	20.28 TFLOPS	59.35 TFLOPS
ROPs	128	128
TMUs	288	368
Tensor Cores	no data	368
Ray Tracing Cores	72	92
L0 Cache	1.1 MB	no data
L1 Cache	1 MB	11.5 MB
L2 Cache	4 MB	96 MB
L3 Cache	128 MB	no data

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 4.0 x16
Length	267 mm	267 mm
Width	2-slot	2-slot
Supplementary power connectors	2x 8-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	GDDR6
Maximum RAM amount	32 GB	48 GB
Memory bus width	256 Bit	384 Bit
Memory clock speed	2000 MHz	2250 MHz
Memory bandwidth	512.0 GB/s	864.0 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

No outputs

4x DisplayPort 1.4a

API and SDK support

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12 Ultimate (12_2)	12 Ultimate (12_2)
Shader Model	6.5	6.7
OpenGL	4.6	4.6
OpenCL	2.1	3.0
Vulkan	1.2	1.3
CUDA	-	8.9
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.

Pro V620 37.38
+16.4%

L20 32.11

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.

Pro V620 15632
+16.4%

Samples: 2

L20 13429

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	37.38	32.11
Recency	4 November 2021	16 November 2023
Maximum RAM amount	32 GB	48 GB
Chip lithography	7 nm	5 nm
Power consumption (TDP)	300 Watt	275 Watt

Pro V620 has a 16.4% higher aggregate performance score.

L20, on the other hand, has an age advantage of 2 years, a 50% higher maximum VRAM amount, a 40% more advanced lithography process, and 9.1% lower power consumption.

The Radeon Pro V620 is our recommended choice as it beats the L20 in performance tests.