Intel Arc G3 Extreme vs NVIDIA GeForce RTX 4090 Mobile Comparison

The Verdict

The recorded data positions the NVIDIA GeForce RTX 4090 Mobile as the decisive performer in this comparison. The database shows the RTX 4090 Mobile with an average benchmark score of 43,667, placing it in the 84th percentile of all GPUs. The Intel Arc G3 Extreme, by contrast, has a percentile ranking of 50 and an average benchmark score of 0, indicating no recorded benchmark results in the database. The RTX 4090 Mobile holds every measurable performance advantage, from raw compute throughput to texture and pixel processing rates.

The Arc G3 Extreme is best suited for systems where power constraints are the primary design consideration. Its 80 W TDP is one-third lower than the RTX 4090 Mobile's 120 W TDP, and its integrated nature, using system shared memory and no power connectors, makes it a candidate for compact, power-lean devices. The RTX 4090 Mobile, with its 16 GB of dedicated GDDR6 memory and 576.0 GB/s bandwidth, is the choice for workloads that demand high memory capacity and sustained throughput.

FAQ

Q: Which GPU has the higher shading unit count?

A: The NVIDIA GeForce RTX 4090 Mobile has 9,728 shading units, while the Intel Arc G3 Extreme has 1,536 shading units.

Q: What is the difference in memory bandwidth between the two?

A: The RTX 4090 Mobile delivers 576.0 GB/s of bandwidth from its 256-bit GDDR6 memory bus. The Arc G3 Extreme uses system shared memory, and its bandwidth is listed as system dependent.

Q: How do the two compare in ray tracing hardware?

A: The RTX 4090 Mobile has 76 RT cores, whereas the Arc G3 Extreme has 12 RT cores.

Q: What process nodes do the two chips use?

A: The Intel Arc G3 Extreme uses a 3 nm process from Intel, while the NVIDIA GeForce RTX 4090 Mobile uses a 5 nm process from TSMC.

Q: What is the boost clock difference?

A: The Arc G3 Extreme boosts to 2500 MHz, which is higher than the RTX 4090 Mobile's boost clock of 1695 MHz. The Arc G3 Extreme's base clock is 300 MHz, compared to the RTX 4090 Mobile's 1335 MHz base.

Q: Which GPU has the higher pixel rate?

A: The RTX 4090 Mobile achieves 189.8 GPixel/s, which is more than three times the Arc G3 Extreme's 60.00 GPixel/s.

Architecture Differences

The two GPUs come from fundamentally different design philosophies. The Intel Arc G3 Extreme is built on the Xe3-LPG architecture, part of the Panther Lake chip, and represents the Arc Graphics-M generation. It uses a 3 nm process node manufactured by Intel. The NVIDIA GeForce RTX 4090 Mobile uses the Ada Lovelace architecture on the AD103 chip, fabricated by TSMC on a 5 nm process. The RTX 4090 Mobile has a documented transistor count of 45,900 million on a 379 mm² die, giving a transistor density of 121.1M per mm². The Arc G3 Extreme's transistor count and die size are listed as unknown.

The compute resource allocation differs substantially. The RTX 4090 Mobile fields 9,728 shading units, 304 TMUs, and 112 ROPs. The Arc G3 Extreme counters with 1,536 shading units, 48 TMUs, and 24 ROPs. Ray tracing hardware follows the same pattern: 76 RT cores on the NVIDIA part versus 12 on the Intel part. The RTX 4090 Mobile also includes 304 tensor cores, a feature class that the Arc G3 Extreme does not list.

Memory architecture separates the two more sharply. The RTX 4090 Mobile uses 16 GB of GDDR6 on a 256-bit bus, with a fixed bandwidth of 576.0 GB/s. The Arc G3 Extreme has no dedicated memory; it draws on system shared memory, with a bus width and bandwidth that are system dependent. The NVIDIA memory clock runs at 2250 MHz with 18 Gbps effective, while the Intel part's memory clock is listed as system shared.

The interface and power delivery also differ. The RTX 4090 Mobile connects via PCIe 4.0 x16, while the Arc G3 Extreme uses an integrated graphics processor (IGP) interface. Both are slot-width IGP designs with no power connectors, and both have display outputs that are portable device dependent. The RTX 4090 Mobile's TDP is 120 W, and the Arc G3 Extreme's TDP is 80 W.

Specification Differences

The specification sheet shows several direct contrasts. The RTX 4090 Mobile's boost clock is 1695 MHz with a base of 1335 MHz. The Arc G3 Extreme's boost clock is 2500 MHz with a base of 300 MHz. Despite the higher boost clock on the Intel part, the NVIDIA part produces far higher throughput figures. The RTX 4090 Mobile's FP32 performance is 32.98 TFLOPS, more than four times the Arc G3 Extreme's 7.680 TFLOPS. FP16 performance shows the same gap: 32.98 TFLOPS at 1:1 ratio for NVIDIA versus 15.36 TFLOPS at 2:1 ratio for Intel.

The texture and pixel rates reinforce the NVIDIA advantage. The RTX 4090 Mobile processes 515.3 GTexel/s, and the Arc G3 Extreme processes 120.0 GTexel/s. Pixel rates are 189.8 GPixel/s versus 60.00 GPixel/s. The RTX 4090 Mobile's memory bandwidth of 576.0 GB/s is a fixed hardware specification, whereas the Arc G3 Extreme's bandwidth is system dependent, meaning it varies with the host platform.

The two share identical API support: both list DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX 4090 Mobile is in the GeForce 40-series, with a release date of 2023-01-02, and has both a predecessor (GeForce 30 Mobile) and successor (GeForce 50 Mobile) listed. The Arc G3 Extreme has no predecessor or successor, and its release date is 2026-05-31. Both are marked as active production status.

Head-to-Head Benchmarks

The benchmark data contains recorded results for the RTX 4090 Mobile only. The Arc G3 Extreme has no benchmark entries in the database, so direct numerical comparisons rely entirely on the NVIDIA part's results and the specification-derived rates.

The RTX 4090 Mobile's strongest recorded result is in Geekbench OpenCL, with a score of 180,831. Its Geekbench Vulkan score is 170,774. In Passmark tests, the GPU scores 27,212 in G3D, 12,347 in GPU Compute, 984 in G2D, 310 in DirectX 9, 262 in DirectX 11, 173 in DirectX 10, and 107 in DirectX 12. The average benchmark score across these tests is 43,667, placing the card at the 84th percentile of all GPUs.

The nearest rivals to the RTX 4090 Mobile in the database provide context for its standing. The NVIDIA RTX A6000 has an average score of 44,075, which is 0.9% higher than the RTX 4090 Mobile's average. The NVIDIA Quadro M6000 scores 43,301, sitting 0.8% lower. The GeForce RTX 5050 Mobile scores 43,268, 0.9% lower, and the Quadro M6000 24 GB scores 43,262, also 0.9% lower. This cluster of results indicates the RTX 4090 Mobile operates in a tightly contested band, with all four rivals within roughly one percentage point of its average score.

The raw throughput rates from the specification data put the RTX 4090 Mobile far ahead of the Arc G3 Extreme. The NVIDIA part's FP32 output of 32.98 TFLOPS is approximately 4.3 times the Intel part's 7.680 TFLOPS. The texture rate of 515.3 GTexel/s is about 4.3 times the Arc G3 Extreme's 120.0 GTexel/s, and the pixel rate of 189.8 GPixel/s is about 3.2 times the Intel part's 60.00 GPixel/s.

The memory bandwidth gap is even more pronounced in structural terms. The RTX 4090 Mobile has a dedicated 576.0 GB/s path, while the Arc G3 Extreme's bandwidth is system dependent, meaning it inherits whatever memory bandwidth the host platform provides. Without a fixed hardware figure, the Intel part cannot guarantee a comparable data throughput rate. The RTX 4090 Mobile's 16 GB of GDDR6 memory also provides a fixed capacity, whereas the Arc G3 Extreme's system shared memory varies by platform.

The power envelope remains the one area where the Arc G3 Extreme holds an advantage. Its 80 W TDP is 40 W lower than the RTX 4090 Mobile's 120 W TDP. The Arc G3 Extreme's base clock of 300 MHz is also substantially lower than the RTX 4090 Mobile's 1335 MHz, which suggests the Intel part is designed for low-power operation rather than sustained high-frequency compute. The boost clocks tell a different story, with the Intel part reaching 2500 MHz versus the NVIDIA part's 1695 MHz, but the throughput results show that the NVIDIA part's larger compute resource pool more than compensates for the lower clock speed.

The data does not record any head-to-head benchmark entries, and the wins tally shows zero wins for either GPU in direct comparison tests. The RTX 4090 Mobile's recorded benchmark scores and its 84th percentile ranking provide the only measured performance evidence. The Arc G3 Extreme's 50th percentile ranking with a zero average score reflects the absence of recorded test results, not a measured performance level. In the absence of direct measurements, the specification-derived rates indicate that the RTX 4090 Mobile delivers multiple times the compute throughput of the Arc G3 Extreme across FP32, texture, and pixel operations.