Intel Arc Pro B65 vs NVIDIA GeForce RTX 4090 Max-Q Comparison

The Intel Arc Pro B65 and the NVIDIA GeForce RTX 4090 Max-Q occupy different positions in the database, with the Arc Pro B65 built for professional compute density and the RTX 4090 Max-Q designed for mobile efficiency. Neither part has recorded benchmark scores in the database, so the analysis below relies on architectural specifications and the recorded performance metrics such as pixel rate, texture rate, and FP32 throughput. The Arc Pro B65 shows a balanced profile for rendering pipelines, while the RTX 4090 Max-Q delivers substantially higher raw shader throughput despite its lower clock speeds.

Where Each One Wins

The Intel Arc Pro B65 wins on memory capacity and bandwidth. It carries 32 GB of GDDR6 memory on a 256 bit bus, yielding 608.0 GB/s of bandwidth. The RTX 4090 Max-Q has 16 GB of GDDR6 on the same 256 bit bus, reaching 576.0 GB/s. The Arc Pro B65 also holds a higher pixel rate at 192.0 GPixel/s compared to 163.0 GPixel/s for the RTX 4090 Max-Q, which suggests an advantage in fill-rate-bound workloads such as high-resolution rasterization or certain compute shaders.

The NVIDIA GeForce RTX 4090 Max-Q wins on shader throughput and texture processing. Its FP32 performance is 28.31 TFLOPS, more than double the 12.29 TFLOPS of the Arc Pro B65. The texture rate also favors NVIDIA: 442.3 GTexel/s versus 384.0 GTexel/s. With 9728 shading units, 304 TMUs, and 112 ROPs, the RTX 4090 Max-Q offers a wider execution width for parallel workloads, while the Arc Pro B65 uses 2560 shading units, 160 TMUs, and 80 ROPs.

The power envelope separates the two clearly. The RTX 4090 Max-Q consumes 80 W and uses no external power connectors, fitting an integrated form factor. The Arc Pro B65 requires 200 W, a dual-slot cooler, and a single 8-pin power connector, plus a 550 W suggested PSU. For mobile or low-power deployments, the RTX 4090 Max-Q is the only option. For stationary workstations with ample power, the Arc Pro B65 provides more memory and higher pixel throughput.

Architecture Differences

The Arc Pro B65 uses the BMG-G21 chip built on the Xe2-HPG architecture, part of the Battlemage (Pro Series) generation. It is manufactured on a 5 nm process at TSMC, with 19,600 million transistors on a 272 mm² die, giving a transistor density of 72.1M per mm². The RTX 4090 Max-Q uses the AD103 chip with the Ada Lovelace architecture, from the GeForce 40 Mobile generation. It also uses a 5 nm TSMC process but packs 45,900 million transistors on a 379 mm² die, achieving 121.1M transistors per mm².

Memory configurations diverge in size but not in bus width. Both use GDDR6 with a 256 bit interface. The Arc Pro B65 runs memory at 2375 MHz, delivering 19 Gbps effective and 608.0 GB/s. The RTX 4090 Max-Q runs memory at 2250 MHz, delivering 18 Gbps effective and 576.0 GB/s. The Arc Pro B65 has exactly twice the memory capacity of the RTX 4090 Max-Q.

Compute resources differ sharply. The Arc Pro B65 has 2560 shading units, 160 TMUs, 80 ROPs, and 20 ray tracing cores. It has no dedicated tensor cores. The RTX 4090 Max-Q has 9728 shading units, 304 TMUs, 112 ROPs, 76 ray tracing cores, and 304 tensor cores. FP16 processing differs: the Arc Pro B65 achieves 24.58 TFLOPS with a 2:1 ratio, while the RTX 4090 Max-Q achieves 28.31 TFLOPS with a 1:1 ratio, meaning NVIDIA does not double FP16 throughput.

Interface and output specifications also differ. The Arc Pro B65 uses PCIe 5.0 x16 and provides four DisplayPort 2.1 outputs. The RTX 4090 Max-Q uses PCIe 4.0 x16 and lists display outputs as portable device dependent, reflecting its mobile nature. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Head-to-Head Benchmarks

The database records no head-to-head benchmark results for these two parts, and neither has an average benchmark score or nearest rivals. The comparison must therefore rely on the recorded throughput metrics. In FP32 compute, the RTX 4090 Max-Q delivers 28.31 TFLOPS, which is 2.30 times the 12.29 TFLOPS of the Arc Pro B65. This represents the largest arithmetic advantage for NVIDIA.

The texture rate shows a smaller gap. The RTX 4090 Max-Q reaches 442.3 GTexel/s, which is 15.2% higher than the 384.0 GTexel/s of the Arc Pro B65. In contrast, the pixel rate favors Intel. The Arc Pro B65 achieves 192.0 GPixel/s, which is 17.8% higher than the 163.0 GPixel/s of the RTX 4090 Max-Q.

Memory bandwidth is close but still favors Intel. The Arc Pro B65 records 608.0 GB/s, which is 5.6% above the 576.0 GB/s of the RTX 4090 Max-Q. FP16 throughput also favors NVIDIA, with 28.31 TFLOPS versus 24.58 TFLOPS for Intel, a 15.2% advantage. However, the Arc Pro B65 achieves that FP16 number through a 2:1 ratio, whereas the RTX 4090 Max-Q uses a 1:1 ratio, indicating different architectural approaches to reduced precision.

Clock speeds show a wide divergence. The Arc Pro B65 runs at a fixed 2400 MHz for both base and boost. The RTX 4090 Max-Q has a base clock of 930 MHz and a boost clock of 1455 MHz. Despite the much lower clocks, the RTX 4090 Max-Q still produces higher FP32 output due to its 3.8 times more shading units.

FAQ

Q: Which card has more memory, and how does that affect bandwidth?

A: The Intel Arc Pro B65 has 32 GB of GDDR6, exactly double the 16 GB of the RTX 4090 Max-Q. Memory bandwidth is 608.0 GB/s for the Arc Pro B65 versus 576.0 GB/s for the RTX 4090 Max-Q, a 32 GB/s difference despite the same 256 bit bus width.

Q: What is the power consumption difference?

A: The Arc Pro B65 has a TDP of 200 W and requires a dual-slot cooler with one 8-pin power connector and a 550 W suggested PSU. The RTX 4090 Max-Q has a TDP of 80 W, uses no power connectors, and has an integrated form factor with no suggested PSU listed.

Q: How do the two compare in FP32 compute performance?

A: The RTX 4090 Max-Q delivers 28.31 TFLOPS, which is 2.30 times the 12.29 TFLOPS of the Arc Pro B65. This is the largest recorded performance gap between the two parts.

Q: Which part has more ray tracing cores and tensor cores?

A: The RTX 4090 Max-Q has 76 ray tracing cores and 304 tensor cores. The Arc Pro B65 has 20 ray tracing cores and no tensor cores listed. The NVIDIA part also has 9728 shading units versus 2560 for Intel.

Q: Are there differences in pixel and texture fill rates?

A: Yes. The Arc Pro B65 has a higher pixel rate at 192.0 GPixel/s compared to 163.0 GPixel/s for the RTX 4090 Max-Q. The RTX 4090 Max-Q has a higher texture rate at 442.3 GTexel/s versus 384.0 GTexel/s for the Arc Pro B65.

Q: What PCIe interface does each card use?

A: The Arc Pro B65 uses PCIe 5.0 x16, while the RTX 4090 Max-Q uses PCIe 4.0 x16. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Specification Differences

The two parts differ across nearly every recorded specification. The Arc Pro B65 uses the BMG-G21 chip with Xe2-HPG architecture, while the RTX 4090 Max-Q uses AD103 with Ada Lovelace. Transistor count is 19,600 million for Intel and 45,900 million for NVIDIA. Die size is 272 mm² versus 379 mm², and transistor density is 72.1M per mm² versus 121.1M per mm².

Clocks differ significantly. The Arc Pro B65 has a base and boost of 2400 MHz, with memory at 2375 MHz (19 Gbps effective). The RTX 4090 Max-Q has a base of 930 MHz and boost of 1455 MHz, with memory at 2250 MHz (18 Gbps effective). Memory size is 32 GB for Intel and 16 GB for NVIDIA, both GDDR6 on a 256 bit bus. Bandwidth is 608.0 GB/s versus 576.0 GB/s.

Shader resources diverge: 2560 shading units, 160 TMUs, 80 ROPs, and 20 RT cores for Intel; 9728 shading units, 304 TMUs, 112 ROPs, and 76 RT cores for NVIDIA. Tensor cores exist only on NVIDIA at 304. Pixel rate is 192.0 GPixel/s for Intel and 163.0 GPixel/s for NVIDIA. Texture rate is 384.0 GTexel/s for Intel and 442.3 GTexel/s for NVIDIA. FP32 is 12.29 TFLOPS versus 28.31 TFLOPS. FP16 is 24.58 TFLOPS (2:1) versus 28.31 TFLOPS (1:1).

Power and physical specifications differ: TDP is 200 W for Intel and 80 W for NVIDIA. Slot width is dual-slot for Intel and IGP for NVIDIA. Power connectors are one 8-pin for Intel and none for NVIDIA. The suggested PSU is 550 W for Intel and absent for NVIDIA. Bus interface is PCIe 5.0 x16 for Intel and PCIe 4.0 x16 for NVIDIA. Display outputs are four DisplayPort 2.1 for Intel and portable device dependent for NVIDIA. Release dates are 2026-03-31 for Intel and 2023-01-02 for NVIDIA. The RTX 4090 Max-Q has a predecessor (GeForce 30 Mobile) and successor (GeForce 50 Mobile), while the Arc Pro B65 lists neither.