Intel Arc B390 vs NVIDIA RTX PRO 4500 Blackwell Workstation Comparison

The Verdict

The data positions these two products at opposite extremes of the graphics spectrum. The Intel Arc B390, an integrated graphics processor within the Panther Lake mobile platform, records a single benchmark score of 1482 in 3DMark Steel Nomad DX12. This places it at the 9th percentile among all GPUs, meaning roughly nine out of ten recorded graphics processors outperform it in that workload. Its nearest rivals are legacy NVIDIA parts such as the GeForce GT 520MX, GeForce 800M, GeForce GT 625 OEM, and GeForce GT 710, with the Arc B390 holding a slim lead of 1.3% to 2.7% over those entries.

The NVIDIA RTX PRO 4500 Blackwell Workstation occupies a completely different tier. It sits at the 50th percentile among all GPUs, with no recorded benchmark score in the database, making a direct numerical comparison impossible. However, its specifications indicate a professional workstation-class part with a 32 GB GDDR7 memory pool, 10496 shading units, 82 ray tracing cores, and 328 tensor cores. The Arc B390 is a low-power integrated solution for portable devices, while the RTX PRO 4500 is a dual-slot, PCIe 5.0 x16 add-in board drawing 200 W with a separate 16-pin power connector.

Based strictly on the recorded data, the Arc B390 suits systems where integrated graphics are the only option, such as thin portable devices, and where the workload is light enough to fall within the performance envelope of a 9th-percentile part. The RTX PRO 4500 targets professional workstation environments requiring substantial memory capacity, high bandwidth, and extensive compute resources, though its benchmark scores are not yet present in the database. Users needing a discrete workstation accelerator with 32 GB of memory and a 256-bit GDDR7 interface should select the RTX PRO 4500; users constrained to an integrated solution with no power connectors should select the Arc B390.

Architecture Differences

The two processors come from different manufacturers, use different foundries, and are built on different process nodes. The Intel Arc B390 uses the Panther Lake chip with the Xe3-LPG architecture, fabricated on a 3 nm process at Intel. The NVIDIA RTX PRO 4500 Blackwell Workstation uses the GB203 chip with the Blackwell 2.0 architecture, fabricated on a 5 nm process at TSMC. The NVIDIA part carries 45,600 million transistors on a 378 mm² die, giving a transistor density of 120.6 million per square millimeter. The Intel part has no transistor count or die size recorded in the database.

The Intel Arc B390 integrates its memory as system shared memory, with no dedicated VRAM. The bus width is system shared, the memory type is system shared, and bandwidth is system dependent. The NVIDIA RTX PRO 4500 uses 32 GB of GDDR7 memory on a 256-bit bus, delivering 896.0 GB/s of bandwidth. Memory clocks differ sharply: the Arc B390 has no dedicated memory clock, while the RTX PRO 4500 runs its memory at 1750 MHz with 28 Gbps effective data rate.

Compute resources also diverge significantly. The Arc B390 has 1536 shading units, 48 texture mapping units, 24 raster operation units, and 12 ray tracing cores. It has no tensor cores recorded. The RTX PRO 4500 has 10496 shading units, 328 texture mapping units, 112 raster operation units, 82 ray tracing cores, and 328 tensor cores. Pixel and texture rates reflect this gap: the Arc B390 delivers 60.00 GPixel/s and 120.0 GTexel/s, while the RTX PRO 4500 delivers 269.6 GPixel/s and 789.5 GTexel/s.

Clock behavior also differs. The Arc B390 has a base clock of 300 MHz and a boost clock of 2500 MHz. The RTX PRO 4500 has a base clock of 1635 MHz and a boost clock of 2407 MHz. The Intel part has a higher boost clock, but the NVIDIA part starts from a far higher base frequency. Floating-point throughput tells a similar story: the Arc B390 computes 7.680 TFLOPS for FP32 and 15.36 TFLOPS for FP16 with a 2:1 ratio. The RTX PRO 4500 computes 50.53 TFLOPS for both FP32 and FP16 with a 1:1 ratio.

Power and physical design differ as well. The Arc B390 consumes 80 W, uses no power connectors, is an integrated graphics processor (IGP), and connects via the IGP bus interface. Display outputs are portable device dependent. The RTX PRO 4500 consumes 200 W, requires a 550 W suggested power supply, uses a 1x 16-pin power connector, occupies a dual-slot form factor, and connects via PCIe 5.0 x16. Its dimensions are 267 mm in length, 111 mm in height, and 40 mm in width. Display outputs are 4x DisplayPort 2.1b. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Release dates differ by nearly a year. The RTX PRO 4500 was released on 2025-03-17, and the Arc B390 followed on 2026-01-26. The RTX PRO 4500 lists a predecessor, Workstation Ada, while the Arc B390 lists no predecessor. Both are currently active in production.

Where Each One Wins

The benchmark data gives the Arc B390 a clear but narrow win in the single recorded test. In 3DMark Steel Nomad DX12, the Arc B390 scores 1482. Its nearest rival, the NVIDIA GeForce GT 520MX, scores 1463, which puts the Arc B390 1.3% ahead. The GeForce 800M scores 1460, a 1.5% gap. The GeForce GT 625 OEM scores 1446, a 2.5% gap. The GeForce GT 710 scores 1443, a 2.7% gap. The Arc B390 therefore leads a cluster of older, low-end discrete GPUs by a small margin in this workload.

The RTX PRO 4500 has no recorded benchmark scores, so the database cannot confirm any workload where it wins. However, the specifications indicate strengths in specific use cases. The 32 GB GDDR7 memory pool and 896.0 GB/s bandwidth suit large data sets and memory-intensive professional workloads. The 328 tensor cores and 82 ray tracing cores provide dedicated hardware for AI inference and ray-traced rendering. The 50.53 TFLOPS FP32 and FP16 throughput, both at 1:1 ratio, enable compute-heavy tasks that need consistent precision across formats. The 4x DisplayPort 2.1b outputs support multi-display workstation setups.

The Arc B390, by contrast, wins on integration and power efficiency. Its 80 W TDP requires no external power connectors, and its IGP bus interface means it occupies no expansion slot. The 300 MHz base clock and 2500 MHz boost clock draw minimal power while still providing a usable graphics path for portable devices. The system shared memory approach means the GPU uses the same memory pool as the CPU, simplifying the memory architecture in mobile systems. The 12 ray tracing cores provide entry-level ray tracing support, though the 7.680 TFLOPS FP32 throughput limits the complexity of workloads it can handle.

The data suggests a use-case split based on form factor and workload class. The Arc B390 serves devices where discrete graphics is impossible. The RTX PRO 4500 serves workstations where dedicated memory, high bandwidth, and high compute throughput are mandatory. Neither part targets the same buyer, so the wins are positional rather than competitive.

FAQ

Q: What is the Intel Arc B390's performance percentile among all GPUs?

A: The Arc B390 sits at the 9th percentile among all GPUs, based on its average benchmark score of 1482.

Q: How does the Arc B390 compare to its nearest rivals?

A: The Arc B390 leads the NVIDIA GeForce GT 520MX by 1.3%, the GeForce 800M by 1.5%, the GeForce GT 625 OEM by 2.5%, and the GeForce GT 710 by 2.7%.

Q: Does the NVIDIA RTX PRO 4500 have any recorded benchmark scores?

A: No, the database lists no benchmark entries for the RTX PRO 4500, and its average benchmark score is 0. Its percentile rank is 50th among all GPUs.

Q: What memory configuration does each product use?

A: The Arc B390 uses system shared memory with a system dependent bandwidth. The RTX PRO 4500 uses 32 GB of GDDR7 memory on a 256-bit bus with 896.0 GB/s bandwidth.

Q: What process nodes are used for each product?

A: The Arc B390 is fabricated on a 3 nm process at Intel. The RTX PRO 4500 is fabricated on a 5 nm process at TSMC.

Q: What are the power requirements for each product?

A: The Arc B390 has an 80 W TDP and requires no power connectors. The RTX PRO 4500 has a 200 W TDP, requires a 1x 16-pin power connector, and a suggested power supply of 550 W.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between the Intel Arc B390 and the NVIDIA RTX PRO 4500 Blackwell Workstation. The wins count is 0 for both products in direct comparison. This absence of data means a direct performance comparison cannot be made from recorded measurements. The only benchmark result available is the Arc B390's score in 3DMark Steel Nomad DX12.

The Arc B390's 1482 score in that test places it among a specific set of rivals. The closest competitor, the NVIDIA GeForce GT 520MX, trails by 1.3% with a score of 1463. The GeForce 800M trails by 1.5% at 1460. The GeForce GT 625 OEM trails by 2.5% at 1446. The GeForce GT 710 trails by 2.7% at 1443. The margins are small, indicating that the Arc B390 performs within a narrow band of older entry-level discrete GPUs in this particular DX12 workload.

The RTX PRO 4500's specifications, while not benchmarked, suggest a different performance class. Its 10496 shading units are roughly 6.8 times the Arc B390's 1536 units. Its 328 texture mapping units compare to the Arc B390's 48. Its 112 raster operation units compare to the Arc B390's 24. The pixel rate of 269.6 GPixel/s is approximately 4.5 times the Arc B390's 60.00 GPixel/s. The texture rate of 789.5 GTexel/s is approximately 6.6 times the Arc B390's 120.0 GTexel/s. The FP32 throughput of 50.53 TFLOPS is approximately 6.6 times the Arc B390's 7.680 TFLOPS.

Memory bandwidth shows the largest relative gap. The RTX PRO 4500 provides 896.0 GB/s versus the Arc B390's system dependent bandwidth, which has no fixed figure in the database. The RTX PRO 4500's 32 GB GDDR7 memory capacity also contrasts with the Arc B390's system shared memory, which has no dedicated allocation. These differences indicate that any benchmark between the two would likely show a substantial advantage for the RTX PRO 4500 in memory-intensive and compute-heavy workloads, though no such measurement exists in the database.

The Arc B390 does hold an advantage in boost clock speed. Its 2500 MHz boost exceeds the RTX PRO 4500's 2407 MHz boost by 93 MHz. The base clock comparison favors the RTX PRO 4500, which starts at 1635 MHz versus the Arc B390's 300 MHz. Power consumption favors the Arc B390, which draws 80 W versus the RTX PRO 4500's 200 W. The Arc B390 also requires no external power connectors and no expansion slot, while the RTX PRO 4500 requires a 16-pin connector and a dual-slot chassis.

The data confirms that the two products are not direct competitors. The Arc B390's recorded benchmark places it among ancient low-end discrete GPUs, while the RTX PRO 4500's specifications place it in the workstation tier. Without head-to-head benchmark entries, the database can only report the Arc B390's single score and the RTX PRO 4500's lack of recorded scores. Any performance relationship between the two remains unmeasured.