NVIDIA H20 NVL16 vs NVIDIA RTX 3500 Mobile Ada Generation Comparison

Head-to-Head Benchmarks

The recorded database does not contain any head-to-head benchmark entries for the NVIDIA H20 NVL16 versus the NVIDIA RTX 3500 Mobile Ada Generation. Both entries list empty benchmark arrays, zero win counts for each side, and no nearest rival data. Consequently, there are no numerical performance scores, percentile deltas, or comparative win margins to analyze between these two specific accelerators. The absence of measured data means any direct performance hierarchy cannot be established from the available records. What the database does provide is a complete set of architectural and specification fields, which allows for a detailed comparison of design intent, hardware capabilities, and target deployment scenarios based on the physical and logical properties of each chip.

Architecture Differences

The most striking divergence begins at the silicon level. The NVIDIA H20 NVL16 uses the GH100 chip built on the Hopper architecture, while the RTX 3500 Mobile Ada Generation uses the AD104 chip based on Ada Lovelace. Both are fabricated by TSMC on a 5 nm process, so the manufacturing node is identical. However, the transistor counts differ enormously: the H20 packs 80,000 million transistors on a die size of 814 mm², yielding a transistor density of 98.3M per mm². The RTX 3500 Mobile contains 35,800 million transistors on a 294 mm² die, resulting in a higher density of 121.8M per mm². The H20's die is nearly three times larger in area and holds more than double the transistor count, but the Ada chip achieves greater packing efficiency per square millimeter.

The memory subsystems represent a fundamental architectural split. The H20 NVL16 uses 96 GB of HBM3 on a 6144-bit bus, delivering 4.03 TB/s of bandwidth. The RTX 3500 Mobile uses 12 GB of GDDR6 on a 192-bit bus, providing 432.0 GB/s. The bandwidth gap is nearly tenfold, and the capacity gap is eightfold. The H20's memory clock is listed at 1313 MHz with 5.3 Gbps effective, whereas the mobile part runs at 2250 MHz with 18 Gbps effective. The HBM3 configuration prioritizes massive aggregate throughput for data-intensive server workloads, while the GDDR6 setup in the mobile part balances capacity and power for portable systems.

Compute resources tell a similar story of scale. The H20 NVL16 features 9984 shading units, 312 TMUs, and 24 ROPs, along with 312 tensor cores. The RTX 3500 Mobile has 5120 shading units, 160 TMUs, 64 ROPs, 40 RT cores, and 160 tensor cores. The H20 has no RT cores listed in the database, while the mobile part includes dedicated ray tracing hardware. The H20's FP32 throughput is 39.54 TFLOPS, and its FP16 output is 79.07 TFLOPS with a 2:1 ratio. The RTX 3500 Mobile delivers 15.82 TFLOPS for both FP32 and FP16, indicating a 1:1 ratio where FP16 does not double the rate. The H20's texture rate is 617.8 GTexel/s versus 247.2 GTexel/s for the mobile part, but the pixel rate reverses: the H20 manages 47.52 GPixel/s while the RTX 3500 Mobile reaches 98.88 GPixel/s, a consequence of the mobile chip having more ROPs relative to its shading count.

Clock behavior differs substantially. The H20 NVL16 runs at a base clock of 1830 MHz and a boost of 1980 MHz. The RTX 3500 Mobile operates at a much lower 1110 MHz base and 1545 MHz boost. Despite the lower clocks, the Ada chip's higher ROP count and 1:1 FP16 capability indicate a different optimization target. Power envelopes reinforce the positioning: the H20 is rated at 400 W TDP with an 800 W suggested PSU, while the RTX 3500 Mobile draws 100 W. The H20 is an SXM module with no display outputs and no power connectors listed, whereas the RTX 3500 Mobile is an IGP with no power connectors and display outputs described as portable device dependent.

API support creates another clear boundary. The H20 NVL16 lists DirectX, OpenGL, and Vulkan as N/A, meaning it is not designed for graphics rendering APIs. The RTX 3500 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, confirming its role in graphics-capable mobile workstations. The H20's bus interface is PCIe 5.0 x16, while the mobile part uses PCIe 4.0 x16. The H20's release date is recorded as 2025-09-01, and the RTX 3500 Mobile's release date is 2023-03-20. The H20's predecessor is Server Ada and its successor is Server Blackwell; the RTX 3500 Mobile's predecessor is Ampere-MW and its successor is Blackwell-MW. The H20's series field is null, whereas the RTX 3500 Mobile is listed under the GeForce 30-series label.

FAQ

Q: Which GPU has more memory bandwidth?

A: The NVIDIA H20 NVL16 provides 4.03 TB/s of bandwidth through 96 GB of HBM3 on a 6144-bit bus. The RTX 3500 Mobile Ada Generation provides 432.0 GB/s through 12 GB of GDDR6 on a 192-bit bus. The H20's bandwidth is approximately 9.3 times higher.

Q: Do both GPUs support the same graphics APIs?

A: No. The H20 NVL16 lists DirectX, OpenGL, and Vulkan as N/A, indicating no graphics API support. The RTX 3500 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: Which GPU has a higher FP32 compute throughput?

A: The H20 NVL16 achieves 39.54 TFLOPS of FP32 performance. The RTX 3500 Mobile achieves 15.82 TFLOPS. The H20's FP32 output is roughly 2.5 times higher.

Q: How do the transistor densities compare?

A: The RTX 3500 Mobile's AD104 chip has a transistor density of 121.8M per mm² on a 294 mm² die with 35,800 million transistors. The H20's GH100 chip has a density of 98.3M per mm² on an 814 mm² die with 80,000 million transistors. The Ada chip is denser per area unit.

Q: What are the power consumption differences?

A: The H20 NVL16 is rated at 400 W TDP with a suggested PSU of 800 W. The RTX 3500 Mobile is rated at 100 W TDP with no suggested PSU listed. The H20 consumes four times the power of the mobile part.

Q: Which GPU includes ray tracing cores?

A: The RTX 3500 Mobile Ada Generation includes 40 RT cores. The H20 NVL16 has no RT cores listed in the database.

Specification Differences

The following fields differ between the two accelerators:

• Chip: GH100 (H20) versus AD104 (RTX 3500 Mobile)
• Architecture: Hopper versus Ada Lovelace
• Generation: Server Hopper (Hxx) versus Ada-MW
• Transistors: 80,000 million versus 35,800 million
• Die Size: 814 mm² versus 294 mm²
• Transistor Density: 98.3M / mm² versus 121.8M / mm²
• Base Clock: 1830 MHz versus 1110 MHz
• Boost Clock: 1980 MHz versus 1545 MHz
• Memory Clock: 1313 MHz 5.3 Gbps effective versus 2250 MHz 18 Gbps effective
• Memory Size: 96 GB versus 12 GB
• Memory Type: HBM3 versus GDDR6
• Memory Bus Width: 6144 bit versus 192 bit
• Memory Bandwidth: 4.03 TB/s versus 432.0 GB/s
• Shading Units: 9984 versus 5120
• TMUs: 312 versus 160
• ROPs: 24 versus 64
• RT Cores: null versus 40
• Tensor Cores: 312 versus 160
• Pixel Rate: 47.52 GPixel/s versus 98.88 GPixel/s
• Texture Rate: 617.8 GTexel/s versus 247.2 GTexel/s
• FP32: 39.54 TFLOPS versus 15.82 TFLOPS
• FP16: 79.07 TFLOPS (2:1) versus 15.82 TFLOPS (1:1)
• TDP: 400 W versus 100 W
• Slot Width: SXM Module versus IGP
• Suggested PSU: 800 W versus null
• Bus Interface: PCIe 5.0 x16 versus PCIe 4.0 x16
• Display Outputs: No outputs versus Portable Device Dependent
• DirectX: N/A versus 12 Ultimate (12_2)
• OpenGL: N/A versus 4.6
• Vulkan: N/A versus 1.4
• Release Date: 2025-09-01 versus 2023-03-20
• Predecessor: Server Ada versus Ampere-MW
• Successor: Server Blackwell versus Blackwell-MW
• Series: null versus GeForce 30-series

The Verdict

The data presents two GPUs engineered for entirely different operational contexts. The H20 NVL16 is a server-class Hopper accelerator with an enormous HBM3 memory pool, quadruple the FP32 throughput, and no graphics API support. The RTX 3500 Mobile Ada Generation is a low-power mobile IGP with full graphics API coverage, dedicated RT cores, and a much smaller GDDR6 footprint. The H20's 400 W TDP and SXM form factor place it in rack-mounted server infrastructure, while the RTX 3500 Mobile's 100 W TDP and IGP slot width target portable workstations. The H20's lack of display outputs and N/A API entries confirm it is not intended for rendering or interactive graphics. The RTX 3500 Mobile's DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support, combined with 40 RT cores, indicate a device for graphics and ray-traced workloads on the move. The H20's 96 GB of HBM3 and 4.03 TB/s bandwidth serve large-scale data processing, whereas the RTX 3500 Mobile's 12 GB GDDR6 and 432.0 GB/s bandwidth serve moderate memory demands within a strict power budget. The higher transistor density of the Ada chip (121.8M per mm²) versus the Hopper chip (98.3M per mm²) reflects the mobile part's need for efficiency, while the H20's larger die and transistor count prioritize raw scale. Neither part is a substitute for the other; the H20 belongs in a data center, and the RTX 3500 Mobile belongs inside a laptop.

Where Each One Wins

The H20 NVL16 wins decisively in memory capacity and bandwidth. Its 96 GB of HBM3 on a 6144-bit bus provides 4.03 TB/s, which is 9.3 times the bandwidth and eight times the capacity of the RTX 3500 Mobile's 12 GB GDDR6 at 432.0 GB/s. The H20 also wins in raw compute scale with 9984 shading units versus 5120, 312 tensor cores versus 160, and FP32 output of 39.54 TFLOPS versus 15.82 TFLOPS. Its texture rate of 617.8 GTexel/s exceeds the mobile part's 247.2 GTexel/s by a wide margin. The H20's FP16 throughput of 79.07 TFLOPS with a 2:1 ratio is more than five times the RTX 3500 Mobile's 15.82 TFLOPS at 1:1, making it the stronger choice for mixed-precision compute workloads.

The RTX 3500 Mobile wins in pixel throughput and graphics capability. Its 98.88 GPixel/s pixel rate more than doubles the H20's 47.52 GPixel/s. The mobile part has 64 ROPs versus the H20's 24, which directly supports its higher pixel fill rate. The RTX 3500 Mobile is the only one of the two with RT cores (40 total) and the only one with functional graphics APIs, including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The H20 lists all three APIs as N/A, so the mobile part is the sole option for rendering pipelines. The RTX 3500 Mobile also wins on power efficiency per the recorded data: its 100 W TDP is one quarter of the H20's 400 W, and its higher transistor density (121.8M per mm²) indicates a more compact implementation. The mobile part's higher memory clock of 18 Gbps effective versus 5.3 Gbps effective shows faster per-pin signaling, even though the aggregate bandwidth is lower. The RTX 3500 Mobile's PCIe 4.0 x16 interface is a generation behind the H20's PCIe 5.0 x16, but the mobile part offers portable device dependent display outputs, which the H20 lacks entirely.

The H20 NVL16 also holds advantages in bus interface generation, memory type, and release recency. Its PCIe 5.0 x16 doubles the lane bandwidth of the RTX 3500 Mobile's PCIe 4.0 x16. The HBM3 memory type is a server-class technology versus the consumer-oriented GDDR6 of the mobile part. The H20's release date of 2025-09-01 comes after the RTX 3500 Mobile's 2023-03-20, making it a newer product in the database. The H20's suggested PSU of 800 W aligns with its higher power draw, while the mobile part lists no suggested PSU. The H20's GH100 chip with 80,000 million transistors represents a far larger silicon investment than the AD104's 35,800 million. The H20's generation is Server Hopper (Hxx), and its predecessor and successor are both server-class families, whereas the RTX 3500 Mobile belongs to the Ada-MW generation with mobile workstation predecessors and successors. These distinctions make the deployment boundary clear: the H20 for server-side computation with massive memory needs, the RTX 3500 Mobile for graphics-capable mobile systems where power and size constraints dominate.