Intel Arc G3 vs NVIDIA H100 CNX Comparison

Head-to-Head Benchmarks

The recorded data for the Intel Arc G3 and NVIDIA H100 CNX contains no direct head-to-head benchmark entries, and both products show an average benchmark score of zero in the database. The absence of measured performance comparisons means the analysis must rely on the architectural and specification differences captured in the database. Both products sit at the 50th percentile against all GPUs in the database, which reflects the lack of recorded benchmark data rather than an equivalence in real-world capability.

The most significant numerical gap appears in raw compute throughput. The NVIDIA H100 CNX delivers 53.84 TFLOPS of FP32 performance, while the Intel Arc G3 provides 6.144 TFLOPS. That places the H100 CNX at roughly 8.8 times the FP32 throughput of the Arc G3. In FP16 compute, the disparity widens further: the H100 CNX reaches 215.4 TFLOPS with a 4:1 ratio, while the Arc G3 achieves 12.29 TFLOPS with a 2:1 ratio. The H100 CNX therefore offers approximately 17.5 times the FP16 performance, and its 4:1 ratio indicates a different design priority for tensor-heavy workloads compared to the Arc G3's 2:1 ratio.

Pixel and texture rates tell a more nuanced story. The Arc G3 posts a pixel rate of 48.00 GPixel/s, which is actually higher than the H100 CNX's 44.28 GPixel/s. The Arc G3 also shows a texture rate of 96.00 GTexel/s, but the H100 CNX dominates here with 841.3 GTexel/s, a difference of roughly 8.8 times in favor of the NVIDIA part. The pixel rate advantage for the Arc G3 is modest, only about 8.4 percent higher, and likely reflects the different rendering pipeline designs: the Arc G3 has 20 ROPs versus 24 ROPs on the H100 CNX, but the Arc G3's higher boost clock of 2400 MHz versus 1845 MHz helps close the gap.

Clock behavior also separates the two. The Arc G3 runs at a base clock of 300 MHz and boosts to 2400 MHz, which is an 8 times multiplier between base and boost. The H100 CNX starts at 690 MHz base and boosts to 1845 MHz, a more conservative 2.7 times ratio. The Arc G3's aggressive boost curve suggests a design tuned for burst workloads within a 25 W power envelope, while the H100 CNX's steadier clock profile aligns with sustained server-class operation at 350 W.

Memory subsystems are fundamentally different. The Arc G3 uses system-shared memory with system-dependent bandwidth, meaning its performance scales with the host platform's memory configuration. The H100 CNX carries 80 GB of dedicated HBM2e memory on a 5120-bit bus, delivering 2.04 TB/s of bandwidth. No comparison of effective bandwidth is possible because the Arc G3's bandwidth is explicitly recorded as system dependent, but the H100 CNX's dedicated 2.04 TB/s represents a fixed, substantial resource for data movement.

The Verdict

The database shows two products with opposite design goals. The Intel Arc G3 is an integrated graphics processor (IGP) built for the Panther Lake platform, with a 25 W TDP, no power connectors, and no dedicated memory. The NVIDIA H100 CNX is a dual-slot server accelerator with an 80 GB HBM2e frame buffer, a 350 W TDP, and an 8-pin EPS power connector. These are not competing products in any measurable sense; they serve different deployment contexts entirely.

For workloads that demand massive FP32 or FP16 compute, large dedicated memory capacity, and high memory bandwidth, the H100 CNX is the only option between the two. Its 53.84 TFLOPS FP32 and 215.4 TFLOPS FP16 figures dwarf the Arc G3's 6.144 TFLOPS and 12.29 TFLOPS. The 80 GB memory capacity and 2.04 TB/s bandwidth also have no equivalent on the Arc G3, which must share system memory.

For portable or embedded platforms where power is constrained and graphics output is required, the Arc G3 is the only viable choice. It has display outputs (portable device dependent), supports DirectX 12 Ultimate with version 12_2, OpenGL 4.6, and Vulkan 1.4, and consumes 25 W. The H100 CNX has no display outputs and no recorded API support for DirectX, OpenGL, or Vulkan, which confirms its role as a compute accelerator rather than a graphics solution.

The pixel rate result is the only metric where the Arc G3 leads, posting 48.00 GPixel/s versus 44.28 GPixel/s for the H100 CNX. That advantage is narrow and likely tied to the Arc G3's higher boost clock and graphics-oriented pipeline. No benchmark scores exist to validate any broader performance conclusions, so all verdicts must be drawn from the specification differences recorded in the database.

FAQ

Q: Which GPU has more shading units?

A: The NVIDIA H100 CNX has 14,592 shading units, while the Intel Arc G3 has 1,280. That is a ratio of roughly 11.4 to 1 in favor of the H100 CNX.

Q: What is the memory capacity difference?

A: The H100 CNX has 80 GB of dedicated HBM2e memory. The Arc G3 uses system-shared memory, so its capacity is not a fixed specification and is system dependent.

Q: Which product supports graphics APIs?

A: Only the Intel Arc G3 has recorded API support: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA H100 CNX has no recorded DirectX, OpenGL, or Vulkan support.

Q: What are the power requirements?

A: The Arc G3 has a 25 W TDP and no power connectors. The H100 CNX has a 350 W TDP and requires an 8-pin EPS connector, with a suggested PSU of 750 W.

Q: How do the process nodes compare?

A: The Intel Arc G3 is fabricated on a 3 nm process at Intel. The NVIDIA H100 CNX is fabricated on a 5 nm process at TSMC.

Q: Do either of these GPUs have tensor cores?

A: The NVIDIA H100 CNX has 456 tensor cores. The Intel Arc G3 has no recorded tensor core count, though it does have 10 ray tracing cores, while the H100 CNX has no recorded ray tracing cores.

Specification Differences

The two products differ across nearly every recorded specification. The Intel Arc G3 uses a 3 nm process node from Intel, while the NVIDIA H100 CNX uses a 5 nm node from TSMC. The H100 CNX has 80,000 million transistors on an 814 mm² die with a transistor density of 98.3M per mm²; the Arc G3 has unknown transistor count, die size, and density.

Clock speeds differ substantially. The Arc G3 has a 300 MHz base clock and 2400 MHz boost, while the H100 CNX has a 690 MHz base and 1845 MHz boost. Memory configurations are entirely different: the Arc G3 uses system-shared memory with system-dependent bandwidth, while the H100 CNX has 80 GB of HBM2e on a 5120-bit bus with 2.04 TB/s bandwidth.

Compute resources diverge sharply. The Arc G3 has 1,280 shading units, 40 TMUs, 20 ROPs, and 10 ray tracing cores, with no tensor cores recorded. The H100 CNX has 14,592 shading units, 456 TMUs, 24 ROPs, and 456 tensor cores, with no ray tracing cores recorded. The Arc G3 reaches 6.144 TFLOPS FP32 and 12.29 TFLOPS FP16 (2:1), while the H100 CNX reaches 53.84 TFLOPS FP32 and 215.4 TFLOPS FP16 (4:1).

Physical and power specifications also differ. The Arc G3 is an IGP with no slot width, no power connectors, and no suggested PSU. The H100 CNX is dual-slot, 267 mm long and 111 mm high, requires an 8-pin EPS connector, and suggests a 750 W PSU. The Arc G3 has display outputs (portable device dependent); the H100 CNX has no display outputs. The Arc G3 uses an IGP bus interface, while the H100 CNX uses PCIe 5.0 x16.

Release dates are also distinct: the Arc G3 released on 2026-05-31, while the H100 CNX released on 2023-03-20. The H100 CNX has recorded predecessors and successors (Server Ada and Server Blackwell, respectively), while the Arc G3 has none. Neither product has a launch MSRP in the database.

Architecture Differences

The Intel Arc G3 is built on the Xe3-LPG architecture, part of the Arc Graphics-M (Panther Lake) generation, using the Panther Lake chip. The NVIDIA H100 CNX uses the Hopper architecture with the GH100 chip, part of the Server Hopper (Hxx) generation.

The Arc G3's Xe3-LPG design targets integrated graphics with a 25 W power envelope. Its 10 ray tracing cores and support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 indicate a graphics-first pipeline. The 2:1 FP16 ratio suggests the FP16 path is for general compute acceleration rather than tensor-dedicated workloads.

The H100 CNX's Hopper architecture is oriented toward server compute. Its 456 tensor cores and 4:1 FP16 ratio point to a design where tensor operations dominate. The lack of display outputs and graphics API support confirms the H100 CNX is not intended for rendering. The 5 nm TSMC process with 80,000 million transistors on an 814 mm² die represents a large, high-power compute die, while the Arc G3's 3 nm Intel process with unknown transistor count is a smaller integrated solution.

Memory architecture also differs at a fundamental level. The H100 CNX uses dedicated HBM2e with a 5120-bit bus, which is a wide, high-bandwidth configuration for data-intensive server tasks. The Arc G3 relies on system-shared memory, meaning its memory performance depends entirely on the host platform.

Where Each One Wins

The Intel Arc G3 wins in scenarios requiring integrated graphics, low power, and display output. Its 25 W TDP makes it suitable for portable devices, where the system-shared memory reduces component count and cost. The Arc G3's pixel rate of 48.00 GPixel/s exceeds the H100 CNX's 44.28 GPixel/s, and its support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 makes it the only one of the two that can drive graphics workloads. The 10 ray tracing cores add hardware-accelerated ray tracing capability that the H100 CNX does not record.

The NVIDIA H100 CNX wins in compute-heavy, data-intensive server workloads. Its 53.84 TFLOPS FP32 and 215.4 TFLOPS FP16 performance, combined with 80 GB of HBM2e and 2.04 TB/s bandwidth, put it in a different performance class. The 456 tensor cores are built for matrix operations, and the 841.3 GTexel/s texture rate indicates strong data throughput. The PCIe 5.0 x16 interface and 350 W TDP align with rack-mounted server deployments. The 2.04 TB/s fixed bandwidth is a decisive advantage over the Arc G3's system-dependent memory, particularly for workloads that move large datasets.

The raw compute ratios favor the H100 CNX overwhelmingly: roughly 8.8 times in FP32, 17.5 times in FP16, and 8.8 times in texture rate. The only metric where the Arc G3 leads is pixel rate, by about 8.4 percent, which is a narrow margin and likely tied to its higher boost clock and graphics-oriented pipeline. No benchmark scores exist to confirm or contradict these specification-based conclusions; the database records zero average benchmark scores for both products, so all comparisons rest on the architectural and specification data.