AMD Ryzen Z2 A GPU vs NVIDIA L4 Comparison

Where Each One Wins

The AMD Ryzen Z2 A GPU and NVIDIA L4 occupy completely different positions in the database. The Ryzen Z2 A GPU sits at the 50th percentile among all GPUs, while the NVIDIA L4 reaches the 95th percentile. That percentile gap alone tells the story: these are not competing products, they are products for different jobs.

The Ryzen Z2 A GPU has no recorded benchmark scores in the database, so its wins cannot be quantified. Its design targets integrated, low-power graphics for a compact console-style platform. It uses a 15 W TDP, which is a fraction of the L4's 72 W TDP. In any efficiency-focused scenario where power draw is the primary constraint, the Ryzen Z2 A GPU is the clear choice. Its 16 GB of LPDDR5 memory on a 128-bit bus delivers 102.4 GB/s of bandwidth, which is adequate for lightweight workloads.

The NVIDIA L4 wins everywhere measurable. It has two recorded benchmark results: 140,838 in Geekbench OpenCL and 121,306 in Geekbench Vulkan. Its average benchmark score is 131,072. The Ryzen Z2 A GPU has no such data, so in head-to-head terms, the L4 is ahead by default in every benchmark that exists.

The L4 also wins in raw compute. Its FP32 throughput is 30.29 TFLOPS versus 1.638 TFLOPS for the Ryzen Z2 A GPU, a difference of roughly 18.5 times. Its FP16 performance is 30.29 TFLOPS with a 1:1 ratio, while the Ryzen Z2 A GPU delivers 3.277 TFLOPS with a 2:1 ratio. Texture rate favors the L4 heavily at 489.6 GTexel/s versus 51.20 GTexel/s. Pixel rate favors the L4 at 163.2 GPixel/s versus 25.60 GPixel/s.

The L4 is built for server inference and rendering workloads. Its 24 GB of GDDR6 memory on a 192-bit bus provides 300.1 GB/s of bandwidth, nearly three times the Ryzen Z2 A GPU's bandwidth. It has 240 tensor cores, enabling AI acceleration that the Ryzen Z2 A GPU completely lacks. The Ryzen Z2 A GPU has no tensor core count listed, meaning it offers no equivalent hardware.

Architecture Differences

The two GPUs come from different architectural generations and manufacturing processes. The Ryzen Z2 A GPU uses the Van Gogh chip based on RDNA 2.0 architecture, built on a 7 nm process at TSMC. The NVIDIA L4 uses the AD104 chip based on Ada Lovelace architecture, built on a 5 nm process at TSMC. The process node difference is significant: 7 nm versus 5 nm, with the L4 packing far more transistors into a larger die.

Transistor counts highlight the scale difference. The Ryzen Z2 A GPU contains 2,400 million transistors on a 163 mm² die, giving a transistor density of 14.7 million per mm². The NVIDIA L4 contains 35,800 million transistors on a 294 mm² die, giving a density of 121.8 million per mm². The L4 has roughly 15 times more transistors and eight times the density.

Core counts differ dramatically. The Ryzen Z2 A GPU has 512 shading units, 32 texture mapping units, 16 raster output units, and 8 ray tracing cores. The NVIDIA L4 has 7,424 shading units, 240 TMUs, 80 ROPs, 60 RT cores, and 240 tensor cores. The L4's shading unit count is over 14 times higher than the Ryzen Z2 A GPU's.

Memory architecture also diverges. The Ryzen Z2 A GPU uses LPDDR5 memory, which is designed for low power consumption and integration. The NVIDIA L4 uses GDDR6, which prioritizes bandwidth and capacity. The L4's memory clock runs at 1563 MHz with 12.5 Gbps effective speed, while the Ryzen Z2 A GPU's memory runs at 800 MHz with 6.4 Gbps effective speed.

Power delivery differs as well. The Ryzen Z2 A GPU has a 15 W TDP and is designed to run without external power connectors. The NVIDIA L4 has a 72 W TDP, draws power through its PCIe 4.0 x16 slot with no external connectors, and recommends a 250 W PSU. The L4 is a single-slot card measuring 169 mm in length and 56 mm in height. The Ryzen Z2 A GPU has no listed dimensions.

API support matches on paper. Both support DirectX 12 Ultimate with feature level 12_2, OpenGL 4.6, and Vulkan 1.4. The difference lies in the underlying hardware: the L4's Ada Lovelace architecture includes dedicated tensor cores for AI workloads, while the Ryzen Z2 A GPU's RDNA 2.0 architecture has no such units.

The display output situation is inverted. The Ryzen Z2 A GPU provides one USB Type-C output, making it suitable for direct display connection. The NVIDIA L4 has no display outputs at all, confirming its role as an accelerator that runs headless in a server.

Head-to-Head Benchmarks

The database lists no shared benchmark results between the two GPUs. The Ryzen Z2 A GPU has an empty benchmark array. The NVIDIA L4 has two results that define its performance tier.

In Geekbench OpenCL, the L4 scores 140,838. In Geekbench Vulkan, it scores 121,306. Its average benchmark score of 131,072 places it just 0.7% below the NVIDIA GeForce RTX 3090 Ti, which averages 131,938. The L4 also trails the NVIDIA RTX 4000 Ada Generation by 3.1% (that card averages 135,218), the NVIDIA A10M by 3.1% (135,230), and the AMD Radeon PRO W6800 by 3.2% (135,396). These deltas place the L4 in a tight cluster near the top of the server and workstation GPU segment.

The Ryzen Z2 A GPU cannot be placed in this comparison because it has no scores. Its 50th percentile ranking suggests it sits near the middle of all GPUs, but without benchmark data, no precise performance statements are possible. The L4's 95th percentile ranking means it outperforms the vast majority of GPUs in the database.

Compute throughput numbers reinforce the separation. The L4's FP32 figure of 30.29 TFLOPS is roughly 18.5 times the Ryzen Z2 A GPU's 1.638 TFLOPS. In FP16, the L4 delivers 30.29 TFLOPS at a 1:1 ratio, meaning it processes half-precision at the same rate as full-precision. The Ryzen Z2 A GPU's FP16 figure of 3.277 TFLOPS at a 2:1 ratio means it gains a 2x throughput advantage on FP16, but the absolute number is still far lower.

Texture and pixel rates show similar gaps. The L4's texture rate of 489.6 GTexel/s exceeds the Ryzen Z2 A GPU's 51.20 GTexel/s by roughly 9.6 times. The L4's pixel rate of 163.2 GPixel/s exceeds the Ryzen Z2 A GPU's 25.60 GPixel/s by roughly 6.4 times.

Memory bandwidth is another decisive factor. The L4's 300.1 GB/s is about 2.9 times the Ryzen Z2 A GPU's 102.4 GB/s. The L4 also has 24 GB of memory versus 16 GB, giving it both more capacity and more speed.

Specification Differences

| Specification | AMD Ryzen Z2 A GPU | NVIDIA L4 |

|---|---|---|

| Architecture | RDNA 2.0 | Ada Lovelace |

| Process node | 7 nm | 5 nm |

| Transistors | 2,400 million | 35,800 million |

| Die size | 163 mm² | 294 mm² |

| Transistor density | 14.7M / mm² | 121.8M / mm² |

| Base clock | 1000 MHz | 795 MHz |

| Boost clock | 1600 MHz | 2040 MHz |

| Memory size | 16 GB | 24 GB |

| Memory type | LPDDR5 | GDDR6 |

| Memory bus | 128 bit | 192 bit |

| Memory bandwidth | 102.4 GB/s | 300.1 GB/s |

| Memory clock | 800 MHz, 6.4 Gbps effective | 1563 MHz, 12.5 Gbps effective |

| Shading units | 512 | 7,424 |

| TMUs | 32 | 240 |

| ROPs | 16 | 80 |

| RT cores | 8 | 60 |

| Tensor cores | None listed | 240 |

| Pixel rate | 25.60 GPixel/s | 163.2 GPixel/s |

| Texture rate | 51.20 GTexel/s | 489.6 GTexel/s |

| FP32 | 1.638 TFLOPS | 30.29 TFLOPS |

| FP16 | 3.277 TFLOPS (2:1) | 30.29 TFLOPS (1:1) |

| TDP | 15 W | 72 W |

| Slot width | Not listed | Single-slot |

| Power connectors | Not listed | None |

| Suggested PSU | Not listed | 250 W |

| Bus interface | Not listed | PCIe 4.0 x16 |

| Display outputs | 1x USB Type-C | No outputs |

| Dimensions | Not listed | 169 mm length, 56 mm height |

| Release date | 2024-12-31 | 2023-03-20 |

| Predecessor | Not listed | Server Ampere |

| Successor | Not listed | Server Hopper |

| Percentile vs all GPUs | 50 | 95 |

FAQ

Q: Which GPU has higher raw compute throughput?

A: The NVIDIA L4. Its FP32 performance is 30.29 TFLOPS versus 1.638 TFLOPS for the AMD Ryzen Z2 A GPU. The L4 also delivers 30.29 TFLOPS in FP16, while the Ryzen Z2 A GPU reaches 3.277 TFLOPS.

Q: Does the AMD Ryzen Z2 A GPU support ray tracing?

A: Yes. It has 8 ray tracing cores and supports DirectX 12 Ultimate with feature level 12_2. The NVIDIA L4 has 60 RT cores and the same DirectX 12 Ultimate support.

Q: Can the NVIDIA L4 output video to a display?

A: No. The L4 has no display outputs. The AMD Ryzen Z2 A GPU provides one USB Type-C output for display connection.

Q: How does the NVIDIA L4 compare to its nearest rivals?

A: The L4's average benchmark score of 131,072 is 0.7% below the NVIDIA GeForce RTX 3090 Ti (131,938), 3.1% below the NVIDIA RTX 4000 Ada Generation (135,218), 3.1% below the NVIDIA A10M (135,230), and 3.2% below the AMD Radeon PRO W6800 (135,396).

Q: Which GPU is more power efficient?

A: The AMD Ryzen Z2 A GPU uses a 15 W TDP, compared to the NVIDIA L4's 72 W TDP. The Ryzen Z2 A GPU has no power connectors listed, while the L4 draws power through its PCIe 4.0 x16 slot and recommends a 250 W PSU.

Q: What is the memory configuration difference?

A: The AMD Ryzen Z2 A GPU uses 16 GB of LPDDR5 on a 128-bit bus with 102.4 GB/s bandwidth. The NVIDIA L4 uses 24 GB of GDDR6 on a 192-bit bus with 300.1 GB/s bandwidth.

The Verdict

The data separates these two GPUs by an enormous margin. The NVIDIA L4 is a server-class accelerator with 30.29 TFLOPS of FP32 performance, 24 GB of GDDR6 memory, 240 tensor cores, and a 95th percentile ranking. It sits within 3.2% of workstation rivals like the AMD Radeon PRO W6800 and within 0.7% of the RTX 3090 Ti. Its intended workloads are AI inference, rendering, and compute tasks that run headless in servers.

The AMD Ryzen Z2 A GPU is a low-power integrated solution with a 15 W TDP, 16 GB of LPDDR5 memory, and a 50th percentile ranking. It has no benchmark scores in the database, so its performance must be inferred from its specification. Its 1.638 TFLOPS of FP32 throughput and 102.4 GB/s of bandwidth suit lightweight graphics tasks. Its single USB Type-C output confirms its role as a display-capable part.

Users who need compute density, AI acceleration, or high-bandwidth memory should select the NVIDIA L4. It outperforms the Ryzen Z2 A GPU by roughly 18.5 times in FP32, 9.6 times in texture rate, and 2.9 times in memory bandwidth. The L4 also provides tensor cores and a PCIe 4.0 x16 interface, making it suitable for expansion in server platforms.

Users who need a low-power GPU with display output should select the AMD Ryzen Z2 A GPU. Its 15 W TDP is the lowest in this comparison, and it is the only one of the two with a video output. Its 50th percentile ranking places it in the middle of the GPU field, which is appropriate for basic graphics duties.

The release dates confirm the product positioning. The NVIDIA L4 launched on 2023-03-20 as part of the Server Ada generation, succeeding Server Ampere and preceding Server Hopper. The AMD Ryzen Z2 A GPU launched on 2024-12-31 as a Console GPU. Neither product targets the same buyer, and the benchmark data reinforces that separation.