Intel Arc G3 Extreme vs NVIDIA H800 SXM5 Comparison

FAQ

Q: What are the core architectural differences between the Intel Arc G3 Extreme and the NVIDIA H800 SXM5?

A: The Intel Arc G3 Extreme uses the Panther Lake chip with Xe3-LPG architecture on a 3 nm process from Intel. The NVIDIA H800 SXM5 uses the GH100 chip with Hopper architecture on a 5 nm process from TSMC, with 80,000 million transistors on an 814 mm² die.

Q: How do the memory configurations compare?

A: The Intel Arc G3 Extreme uses System Shared memory with system-dependent bandwidth and a System Shared bus width. The NVIDIA H800 SXM5 has 80 GB of HBM3 memory on a 5120-bit bus with 3.36 TB/s bandwidth.

Q: What is the difference in compute capability?

A: The Intel Arc G3 Extreme delivers 7.680 TFLOPS FP32 and 15.36 TFLOPS FP16 (2:1). The NVIDIA H800 SXM5 delivers 59.30 TFLOPS FP32 and 237.2 TFLOPS FP16 (4:1), which is substantially higher in both metrics.

Q: What are the power requirements for each?

A: The Intel Arc G3 Extreme has an 80 W TDP with no power connectors and is an IGP. The NVIDIA H800 SXM5 has a 700 W TDP, uses an 8-pin EPS power connector, and requires a suggested PSU of 1100 W.

Q: What display outputs do they offer?

A: The Intel Arc G3 Extreme provides Portable Device Dependent display outputs. The NVIDIA H800 SXM5 has no display outputs, as it is a server module.

Q: What are the release dates and production statuses?

A: The Intel Arc G3 Extreme was released on 2026-05-31 and is Active. The NVIDIA H800 SXM5 was released on 2023-03-20 and is also Active.

Architecture Differences

The Intel Arc G3 Extreme and NVIDIA H800 SXM5 represent two fundamentally different design philosophies. The Intel part is built on the Xe3-LPG architecture using the Panther Lake chip, fabricated on a 3 nm process at Intel's own foundry. The NVIDIA part uses the Hopper architecture with the GH100 chip, fabricated on a 5 nm process at TSMC. The NVIDIA chip packs 80,000 million transistors into an 814 mm² die, giving a transistor density of 98.3M per mm². The Intel chip's transistor count and die size are not recorded in the database.

The Intel Arc G3 Extreme is an integrated graphics processor (IGP) with a bus interface of IGP, meaning it shares system memory and its bandwidth is dependent on the host system. The NVIDIA H800 SXM5 is a dedicated SXM module with a PCIe 5.0 x16 bus interface, featuring 80 GB of dedicated HBM3 memory on a 5120-bit bus. The memory bandwidth gap is enormous: 3.36 TB/s for NVIDIA versus system-dependent for Intel.

The compute resources differ sharply. Intel provides 1536 shading units, 48 texture mapping units, and 24 raster output units, plus 12 ray tracing cores. NVIDIA provides 16896 shading units, 528 texture mapping units, and 24 raster output units, plus 528 tensor cores. NVIDIA does not list ray tracing cores in the database. The NVIDIA part has no display outputs, while Intel's outputs are portable device dependent.

The API support also separates them. Intel supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. NVIDIA's API support fields are null in the database, indicating it is not configured for consumer graphics APIs.

Clock behavior differs as well. Intel runs at a base of 300 MHz with a boost of 2500 MHz. NVIDIA runs at a base of 1095 MHz with a boost of 1755 MHz, and its memory clock is listed at 1313 MHz with 5.3 Gbps effective. Intel's memory clock is system shared.

The Verdict

The data clearly separates these two products into different usage domains. The Intel Arc G3 Extreme is an integrated solution for portable devices, with an 80 W TDP, no power connectors, and system-shared memory. The NVIDIA H800 SXM5 is a server accelerator with a 700 W TDP, 8-pin EPS power connector, and a suggested PSU of 1100 W.

For raw compute throughput, the NVIDIA H800 SXM5 dominates. Its FP32 performance of 59.30 TFLOPS is approximately 7.7 times higher than Intel's 7.680 TFLOPS. Its FP16 performance of 237.2 TFLOPS is roughly 15.4 times higher than Intel's 15.36 TFLOPS. The texture rate of 926.6 GTexel/s versus Intel's 120.0 GTexel/s shows a similar gap.

The Intel Arc G3 Extreme, however, has a higher pixel rate at 60.00 GPixel/s versus NVIDIA's 42.12 GPixel/s. This indicates Intel's design favors rasterization throughput per unit of compute, consistent with a graphics-oriented integrated part.

The choice depends on the workload. For server-side AI, high-performance computing, or data center inference where FP16 and tensor operations matter, the NVIDIA H800 SXM5 is the only viable option given its 528 tensor cores and massive memory bandwidth. For a portable device needing basic graphics and compute with minimal power draw, the Intel Arc G3 Extreme fits that role. The database records no head-to-head benchmarks and zero wins for either part, so no direct performance comparison exists in the recorded data.

Specification Differences

| Specification | Intel Arc G3 Extreme | NVIDIA H800 SXM5 |

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

| Chip | Panther Lake | GH100 |

| Architecture | Xe3-LPG | Hopper |

| Process Node | 3 nm | 5 nm |

| Foundry | Intel | TSMC |

| Transistors | unknown | 80,000 million |

| Die Size | unknown | 814 mm² |

| Base Clock | 300 MHz | 1095 MHz |

| Boost Clock | 2500 MHz | 1755 MHz |

| Memory Size | System Shared | 80 GB |

| Memory Type | System Shared | HBM3 |

| Memory Bus Width | System Shared | 5120 bit |

| Memory Bandwidth | System Dependent | 3.36 TB/s |

| Shading Units | 1536 | 16896 |

| TMUs | 48 | 528 |

| ROPs | 24 | 24 |

| RT Cores | 12 | null |

| Tensor Cores | null | 528 |

| Pixel Rate | 60.00 GPixel/s | 42.12 GPixel/s |

| Texture Rate | 120.0 GTexel/s | 926.6 GTexel/s |

| FP32 | 7.680 TFLOPS | 59.30 TFLOPS |

| FP16 | 15.36 TFLOPS (2:1) | 237.2 TFLOPS (4:1) |

| TDP | 80 W | 700 W |

| Slot Width | IGP | SXM Module |

| Power Connectors | None | 8-pin EPS |

| Suggested PSU | null | 1100 W |

| Bus Interface | IGP | PCIe 5.0 x16 |

| Display Outputs | Portable Device Dependent | No outputs |

| DirectX | 12 Ultimate (12_2) | null |

| OpenGL | 4.6 | null |

| Vulkan | 1.4 | null |

| Release Date | 2026-05-31 | 2023-03-20 |

| Predecessor | null | Server Ada |

| Successor | null | Server Blackwell |

Head-to-Head Benchmarks

The database records no head-to-head benchmark results between these two products. The wins count for each is zero. Instead, the comparison must rely on the recorded specification-level metrics, which show clear strengths for each side.

In FP32 compute, the NVIDIA H800 SXM5 delivers 59.30 TFLOPS, which is 51.62 TFLOPS higher than Intel's 7.680 TFLOPS. That represents a 7.7x advantage. In FP16, the gap widens further: NVIDIA's 237.2 TFLOPS is 221.84 TFLOPS above Intel's 15.36 TFLOPS, an 15.4x advantage. The NVIDIA part's 4:1 FP16 ratio versus Intel's 2:1 ratio explains part of this, but the sheer scale of NVIDIA's shading units and tensor cores drives the rest.

Texture rate follows a similar pattern. NVIDIA's 926.6 GTexel/s is 806.6 GTexel/s higher than Intel's 120.0 GTexel/s, an 7.7x advantage. This aligns with NVIDIA's 528 TMUs versus Intel's 48 TMUs.

The one metric where Intel leads is pixel rate. Intel's 60.00 GPixel/s is 17.88 GPixel/s higher than NVIDIA's 42.12 GPixel/s. Both parts have 24 ROPs, so the difference comes from Intel's higher boost clock of 2500 MHz versus NVIDIA's 1755 MHz. At the ROP level, clock speed directly determines pixel throughput, and Intel's clock advantage shows here.

Memory bandwidth is not directly comparable because Intel's is system dependent. NVIDIA's 3.36 TB/s from HBM3 on a 5120-bit bus is a fixed, dedicated resource. The Intel part's bandwidth will vary with the host system's memory configuration, which the database does not specify.

Where Each One Wins

The Intel Arc G3 Extreme wins in scenarios that prioritize pixel throughput and low power consumption. Its 60.00 GPixel/s pixel rate is higher than NVIDIA's, and its 80 W TDP is 620 W lower. This makes it suitable for portable devices with integrated graphics where the display output is portable device dependent. The 12 ray tracing cores provide hardware ray tracing capability that NVIDIA does not list for the H800 SXM5. The support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 allows it to run consumer graphics workloads directly, something the NVIDIA part cannot do given its null API fields and no display outputs.

The NVIDIA H800 SXM5 wins in compute-heavy server workloads. Its FP32 and FP16 performance are both far ahead, and its 528 tensor cores are designed for matrix operations common in AI training and inference. The 80 GB of HBM3 with 3.36 TB/s bandwidth provides a large, fast memory pool that the Intel part cannot match with system-shared memory. The 528 TMUs and 926.6 GTexel/s texture rate indicate strong geometry and texture processing. The PCIe 5.0 x16 interface allows high-bandwidth host communication. The predecessor and successor records (Server Ada and Server Blackwell) confirm its place in a server product line.

The power and cooling requirements reinforce the split. The Intel part uses no power connectors and is an IGP, so it fits in a mobile context. The NVIDIA part requires an 8-pin EPS connector and a 1100 W suggested PSU, plus an SXM module slot, meaning it belongs in a data center chassis. The release dates also reflect different lifecycles, with NVIDIA shipping in 2023 and Intel planned for 2026.

The recorded data shows no benchmark overlap, so neither part can claim a direct performance victory. The specification differences make the intended use clear. Builders with a portable device should use the Intel Arc G3 Extreme for its integrated nature and higher pixel throughput. Data center operators running FP16 or FP32 workloads with large memory demands should use the NVIDIA H800 SXM5 for its compute density and dedicated memory bandwidth.