GPU Comparison

Head-to-Head Benchmarks

The benchmark data presents a fascinating split decision between these two professional workstation GPUs. In the Geekbench OpenCL test, the NVIDIA L4 decisively outperforms the AMD Radeon PRO W7700, scoring 140,838 against 113,243, a substantial 24.4% advantage. This is not a marginal victory; it is a commanding lead that places the L4 in a different performance tier for compute-heavy OpenCL workloads. Conversely, the Vulkan benchmark tells the opposite story, with the AMD Radeon PRO W7700 taking the crown at 133,625 versus the L4's 116,491, a 12.8% swing in AMD's favor. Each card claims one win, creating a perfect 1-1 split in the head-to-head results.

Examining the average benchmark scores provides additional context. The NVIDIA L4 averages 128,665 across all tests, while the AMD Radeon PRO W7700 averages 123,434, a difference of roughly 4.2% in NVIDIA's favor. This aggregate metric suggests the L4 holds a slight overall edge, but the divergent API-specific results indicate that the "better" card depends entirely on the workload environment. The L4's nearest rivals list includes the PRO W7700 with a deltaPct of 4.2%, meaning the L4 outperforms its AMD competitor by that margin on average. Looking at the reverse perspective, the PRO W7700's data shows the L4 as a rival with a deltaPct of -4.1%, confirming the same relative positioning from AMD's viewpoint.

The percentile rankings are remarkably close: the L4 sits at the 97th percentile of all GPUs, while the PRO W7700 ranks at the 96th percentile. This one-percentile difference underscores how competitive these two cards are in the broader GPU landscape. The L4 also sits near the GeForce RTX 3090 Ti (131,911 averaged, 2.5% higher) and the Radeon PRO W6800 (133,588 averaged, 3.7% higher), while the PRO W7700 trails the same RTX 3090 Ti by 6.4%. Notably, the PRO W7700 outperforms the RTX 4000 SFF Ada Generation by 5.4% and the Radeon Pro Vega II Duo by 7.4%, showing it holds its own against other professional offerings.

Where Each One Wins

The OpenCL result suggests the NVIDIA L4 is the superior choice for general-purpose GPU compute tasks that leverage OpenCL's cross-platform framework. A 24.4% advantage in this test is significant enough to influence hardware decisions for scientific computing, data processing, or any workflow that relies heavily on OpenCL acceleration. The L4's architecture appears better optimized for the raw compute throughput that OpenCL benchmarks typically measure, which aligns with its server-oriented design philosophy.

The Vulkan result, however, indicates that the AMD Radeon PRO W7700 excels in graphics-rendering and real-time visualization workloads. Vulkan's lower-level API access tends to favor architectures with strong graphics-focused feature sets, and AMD's 12.8% lead here suggests the PRO W7700 is better suited for tasks like 3D modeling viewports, game engine development, or virtual reality applications. The PRO W7700 also offers display outputs, 4x DisplayPort 2.1, while the L4 has no display outputs at all, making the AMD card the only viable option for direct monitor connectivity.

For users prioritizing raw compute in a server environment, the L4 wins. For those needing graphics performance with display capabilities, the PRO W7700 is the clear choice. The data shows no single dominant card; instead, the decision hinges on whether OpenCL compute or Vulkan graphics matters more for the intended use case. The L4's higher average score suggests it may be the safer default, but only marginally so, and users with Vulkan-centric workloads would be leaving performance on the table by choosing NVIDIA.

Architecture Differences

The architectural divide between these two cards is substantial. The NVIDIA L4 uses the AD104 chip based on Ada Lovelace architecture, fabricated on a 5 nm process at TSMC with 35,800 million transistors on a 294 mm² die. This yields a transistor density of 121.8 million per square millimeter, an exceptionally high figure reflecting NVIDIA's focus on packing compute resources into a compact server form factor. The AMD Radeon PRO W7700 employs the Navi 32 chip with RDNA 3.0 architecture, also on TSMC's 5 nm node, but with 28,100 million transistors spread across a larger 346 mm² die, resulting in a lower density of 81.2 million per square millimeter.

Clock speeds reveal another key difference. The L4 operates at a conservative 795 MHz base clock, boosting to 2040 MHz, while the PRO W7700 runs at a 1900 MHz base and 2600 MHz boost. This 560 MHz boost-clock advantage for AMD partly explains its Vulkan performance lead, as higher clocks directly benefit latency-sensitive graphics workloads. However, the L4 compensates with far more shading units: 7,424 versus the PRO W7700's 3,072. The L4 also fields 240 texture mapping units, 80 raster output units, 60 ray tracing cores, and 240 tensor cores. The PRO W7700 counters with 192 TMUs, 96 ROPs, and 48 ray tracing cores, but notably lacks tensor cores entirely, a significant omission for AI and machine learning workloads.

Memory configurations diverge sharply. The L4 offers 24 GB of GDDR6 on a 192-bit bus with 300.1 GB/s bandwidth, while the PRO W7700 provides 16 GB on a wider 256-bit bus delivering 576.0 GB/s. The AMD card's bandwidth advantage is nearly double, which benefits memory-intensive graphics tasks, while the L4's larger capacity suits large datasets and models that require more VRAM than bandwidth. The memory clock rates reflect this: the L4 runs at 1563 MHz (12.5 Gbps effective), while the PRO W7700 operates at 2250 MHz (18 Gbps effective).

Power and physical specifications could not differ more. The L4 consumes just 72 W TDP with no power connectors and a suggested 250 W PSU, while the PRO W7700 draws 190 W, requires a single 8-pin connector, and recommends a 450 W PSU. The L4 is a single-slot card measuring 169 mm in length and 56 mm in height, whereas the PRO W7700 is dual-slot, 241 mm long and 111 mm tall. The L4's compact, low-power design suits dense server deployments; the PRO W7700's larger footprint accommodates its higher power delivery and display outputs.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA L4 averages 128,665 across its benchmark suite, while the AMD Radeon PRO W7700 averages 123,434, giving the L4 a 4.2% lead in the head-to-head comparison.

Q: How do the two cards perform in OpenCL versus Vulkan?

A: The NVIDIA L4 wins OpenCL decisively with 140,838 against 113,243, a 24.4% margin. The AMD Radeon PRO W7700 wins Vulkan with 133,625 versus 116,491, a 12.8% advantage.

Q: What are the memory capacity and bandwidth differences?

A: The L4 has 24 GB of GDDR6 on a 192-bit bus with 300.1 GB/s bandwidth. The PRO W7700 has 16 GB on a 256-bit bus with 576.0 GB/s, offering nearly double the bandwidth but 8 GB less capacity.

Q: Does the NVIDIA L4 support display outputs?

A: No, the L4 has no display outputs. The AMD Radeon PRO W7700 provides 4x DisplayPort 2.1, making it the only option for direct monitor connectivity.

Q: Which card draws more power and requires a larger PSU?

A: The PRO W7700 consumes 190 W TDP and suggests a 450 W PSU, while the L4 operates at just 72 W with a 250 W PSU suggestion. The L4 also requires no power connectors.

Q: How do the transistor counts and die sizes compare?

A: The L4 has 35,800 million transistors on a 294 mm² die (121.8M/mm² density), while the PRO W7700 has 28,100 million on a 346 mm² die (81.2M/mm² density). Both use TSMC's 5 nm process.

Specification Differences

| Specification | NVIDIA L4 | AMD Radeon PRO W7700 |

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

| Chip | AD104 | Navi 32 |

| Architecture | Ada Lovelace | RDNA 3.0 |

| Codename | None | Wheat Nas |

| Generation | Server Ada (Lxx) | Radeon Pro Navi (Navi III Series) |

| Transistors | 35,800 million | 28,100 million |

| Die Size | 294 mm² | 346 mm² |

| Transistor Density | 121.8M / mm² | 81.2M / mm² |

| Base Clock | 795 MHz | 1900 MHz |

| Boost Clock | 2040 MHz | 2600 MHz |

| Memory Clock | 1563 MHz / 12.5 Gbps effective | 2250 MHz / 18 Gbps effective |

| Memory Size | 24 GB | 16 GB |

| Memory Bus Width | 192 bit | 256 bit |

| Memory Bandwidth | 300.1 GB/s | 576.0 GB/s |

| Shading Units | 7424 | 3072 |

| TMUs | 240 | 192 |

| ROPs | 80 | 96 |

| RT Cores | 60 | 48 |

| Tensor Cores | 240 | None |

| Pixel Rate | 163.2 GPixel/s | 249.6 GPixel/s |

| Texture Rate | 489.6 GTexel/s | 499.2 GTexel/s |

| FP32 | 30.29 TFLOPS | 31.95 TFLOPS |

| FP16 | 30.29 TFLOPS (1:1) | 63.90 TFLOPS (2:1) |

| TDP | 72 W | 190 W |

| Slot Width | Single-slot | Dual-slot |

| Power Connectors | None | 1x 8-pin |

| Suggested PSU | 250 W | 450 W |

| Display Outputs | No outputs | 4x DisplayPort 2.1 |

| Length | 169 mm / 6.7 inches | 241 mm / 9.5 inches |

| Height | 56 mm / 2.2 inches | 111 mm / 4.4 inches |

| Release Date | 2023-03-20 | 2023-11-12 |

| Predecessor | Server Ampere | Radeon Pro Vega |

| Successor | Server Hopper | None |

| Launch MSRP | None | 999 USD |

The Verdict

The data presents a clear but conditional recommendation. The NVIDIA L4 is the better choice for compute-centric server deployments where OpenCL performance, memory capacity, and power efficiency are paramount. Its 24.4% OpenCL advantage, 24 GB VRAM capacity, 72 W power draw, and single-slot form factor make it ideal for dense, power-constrained environments processing large datasets. The L4's 97th percentile ranking and higher average score of 128,665 reinforce its compute leadership.

The AMD Radeon PRO W7700 is the better option for graphics-heavy professional work that requires display output and Vulkan acceleration. Its 12.8% Vulkan lead, 4x DisplayPort 2.1 connectivity, 576.0 GB/s memory bandwidth, and higher boost clock of 2600 MHz serve real-time rendering and visualization workloads better. The PRO W7700's FP16 performance of 63.90 TFLOPS (2:1) versus the L4's 30.29 TFLOPS (1:1) also indicates superior half-precision throughput, useful for certain AI inference and graphics pipelines.

Users needing tensor cores for AI workloads have only one choice, the L4 with its 240 tensor cores. Those prioritizing raw FP32 throughput find the PRO W7700 slightly ahead at 31.95 TFLOPS versus 30.29 TFLOPS. The L4's higher transistor density (121.8M/mm²) and 35,800 million transistors suggest more compute resources per area, but AMD's higher clock speeds and dual-issue FP16 capability offset this in specific tasks. The verdict: choose the L4 for server compute and AI inference; choose the PRO W7700 for graphics workstations requiring displays and Vulkan performance. The 96th and 97th percentile rankings confirm both are elite performers, the decision rests on workload priorities, not overall quality.