AMD Radeon PRO W7900D vs Intel Arc B390 Comparison

The Verdict

The data presents two graphics products with fundamentally different positioning. The AMD Radeon PRO W7900D is a professional workstation accelerator built on the Navi 31 chip with RDNA 3.0 architecture, targeting sustained compute and rendering workloads. The Intel Arc B390 is an integrated graphics processor within the Panther Lake chip using Xe3-LPG architecture, designed for portable devices where power efficiency and minimal footprint take priority.

Benchmark results show the Arc B390 holds a recorded 3DMark Steel Nomad DX12 score of 1482, placing it at the 9th percentile among all GPUs in the database. Its nearest rivals include the NVIDIA GeForce GT 520MX with an average score of 1463, a 1.3% difference, and the NVIDIA GeForce 800M at 1460, a 1.5% difference. The AMD Radeon PRO W7900D has no recorded benchmark scores in the database and no nearest rival entries, leaving its percentile position at 50 with an average score of 0. This absence of measured data for the W7900D means direct numerical comparison is limited to architectural and specification analysis rather than observed performance.

The W7900D delivers 52.99 TFLOPS FP32 compute, 864.0 GB/s memory bandwidth, and 48 GB of GDDR6 across a 384-bit bus. The Arc B390 delivers 7.680 TFLOPS FP32, system-shared memory with system-dependent bandwidth, and a 60.00 GPixel/s pixel rate. The W7900D leads in raw throughput by a wide margin based on specification data, while the Arc B390 consumes only 80 W compared to 295 W for the W7900D.

Users requiring maximum compute throughput, large memory capacity, and dedicated graphics memory should select the AMD Radeon PRO W7900D based on its specification sheet. Users needing an integrated solution for compact, low-power portable systems should consider the Intel Arc B390, as it uses no dedicated power connectors, occupies no slot width, and relies on system memory. The production status for both is Active, but the Arc B390 has a release date of 2026-01-26 while the W7900D was released on 2025-09-24.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Radeon PRO W7900D delivers 52.99 TFLOPS FP32, while the Intel Arc B390 delivers 7.680 TFLOPS FP32. The W7900D specification exceeds the Arc B390 by a substantial factor.

Q: What is the memory configuration of each product?

A: The W7900D uses 48 GB of GDDR6 memory on a 384-bit bus with 864.0 GB/s bandwidth. The Arc B390 uses system-shared memory, meaning its capacity, bus width, and bandwidth are system dependent.

Q: What is the thermal design power of each GPU?

A: The AMD Radeon PRO W7900D has a TDP of 295 W with a suggested PSU of 600 W and requires two 8-pin power connectors. The Intel Arc B390 has a TDP of 80 W and requires no power connectors.

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

A: The Arc B390 scores 1482 in 3DMark Steel Nomad DX12, which is 1.3% higher than the NVIDIA GeForce GT 520MX (1463), 1.5% higher than the NVIDIA GeForce 800M (1460), 2.5% higher than the NVIDIA GeForce GT 625 OEM (1446), and 2.7% higher than the NVIDIA GeForce GT 710 (1443).

Q: Which product supports which graphics APIs?

A: Both products support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The API support is identical for both.

Q: What are the physical form factor differences?

A: The W7900D is a triple-slot card measuring 280 mm in length, 110 mm in height, and 51 mm in width. The Arc B390 is an integrated graphics processor with no slot width, no dimensions, and no power connectors, making it suitable for portable devices.

Architecture Differences

The AMD Radeon PRO W7900D uses the Navi 31 chip built on RDNA 3.0 architecture with the codename Plum Bonito. It belongs to the Radeon Pro Navi generation within the Navi III Series. The chip is fabricated on a 5 nm process at TSMC with 57,700 million transistors on a 529 mm² die, yielding a transistor density of 109.1M per mm². The architecture includes 6144 shading units, 384 texture mapping units, 192 raster operation units, and 96 ray tracing cores. The W7900D has no tensor cores listed.

The Intel Arc B390 uses the Panther Lake chip built on Xe3-LPG architecture and belongs to the Arc Graphics-M generation within Panther Lake. The chip is fabricated on a 3 nm process at Intel, with transistor count and die size listed as unknown. The architecture includes 1536 shading units, 48 texture mapping units, 24 raster operation units, and 12 ray tracing cores. The Arc B390 also has no tensor cores listed.

The process node difference is meaningful: the W7900D uses 5 nm TSMC fabrication, while the Arc B390 uses 3 nm Intel fabrication. The Arc B390's smaller process node aligns with its integrated design and lower power envelope of 80 W. The W7900D's larger die and higher transistor count support its dedicated memory interface and professional compute positioning.

The ray tracing resources differ substantially: the W7900D includes 96 RT cores, while the Arc B390 includes 12 RT cores. Shading resources also differ: 6144 shading units on the W7900D versus 1536 on the Arc B390. The FP16 throughput ratio differs as well, with the W7900D delivering FP16 at a 1:1 ratio to FP32 (52.99 TFLOPS) and the Arc B390 delivering FP16 at a 2:1 ratio (15.36 TFLOPS).

The W7900D is connected via PCIe 4.0 x16, while the Arc B390 uses an integrated graphics processor interface. Display outputs for the W7900D include 3x DisplayPort 2.1 and 1x mini-DisplayPort 2.1, while the Arc B390's display outputs are portable device dependent.

Specification Differences

The clock specifications differ markedly. The W7900D has a base clock of 1327 MHz and a boost clock of 2156 MHz, with memory clocked at 2250 MHz for 18 Gbps effective. The Arc B390 has a base clock of 300 MHz and a boost clock of 2500 MHz, with system-shared memory.

The memory subsystem is a primary differentiator. The W7900D features 48 GB of GDDR6 on a 384-bit bus with 864.0 GB/s bandwidth. The Arc B390 uses system-shared memory with system dependent bandwidth, no fixed bus width, and no dedicated memory size.

The compute rates show the W7900D's advantage. Pixel rate for the W7900D is 414.0 GPixel/s versus 60.00 GPixel/s for the Arc B390. Texture rate is 827.9 GTexel/s versus 120.0 GTexel/s. FP32 performance is 52.99 TFLOPS versus 7.680 TFLOPS.

Power and physical specifications differ completely. The W7900D has a 295 W TDP, requires a 600 W suggested PSU, uses two 8-pin power connectors, and occupies a triple-slot form factor. The Arc B390 has an 80 W TDP, no suggested PSU, no power connectors, and is an integrated graphics processor with no slot width.

The bus interface also differs: PCIe 4.0 x16 for the W7900D versus IGP for the Arc B390. The W7900D has physical dimensions of 280 mm length, 110 mm height, and 51 mm width, while the Arc B390 has no listed dimensions.

Release dates differ as well: the W7900D was released on 2025-09-24, and the Arc B390 on 2026-01-26. The W7900D lists its predecessor as the Radeon Pro Vega, while the Arc B390 has no predecessor listed.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between the AMD Radeon PRO W7900D and the Intel Arc B390. The head-to-head benchmark array is empty, and the wins counter for both products is zero. This means no measured performance comparison exists in the recorded data for these two products running identical workloads.

The Intel Arc B390 has one recorded benchmark result: a 3DMark Steel Nomad DX12 score of 1482. This score places the Arc B390 at the 9th percentile among all GPUs in the database. The nearest rival comparison shows the Arc B390 leads the NVIDIA GeForce GT 520MX by 1.3% (1463 score), the NVIDIA GeForce 800M by 1.5% (1460 score), the NVIDIA GeForce GT 625 OEM by 2.5% (1446 score), and the NVIDIA GeForce GT 710 by 2.7% (1443 score). These margins are small, indicating the Arc B390 sits in a performance tier comparable to older entry-level discrete GPUs.

The AMD Radeon PRO W7900D has no recorded benchmark scores, no average benchmark score, and no nearest rivals in the database. Its percentile versus all GPUs is listed at 50, which is the median position in the absence of measured data. The average benchmark score of 0 confirms that no benchmark entries exist for this product.

Given the absence of direct measurements, specification-based comparison provides the only available analysis. The W7900D specification shows 52.99 TFLOPS FP32, which is approximately 6.9 times the Arc B390's 7.680 TFLOPS FP32. The W7900D's pixel rate of 414.0 GPixel/s is 6.9 times the Arc B390's 60.00 GPixel/s. The texture rate of 827.9 GTexel/s versus 120.0 GTexel/s shows a similar ratio. Memory bandwidth of 864.0 GB/s versus system-dependent bandwidth further separates the two products.

The architecture differences reinforce the specification gap. The W7900D provides 6144 shading units, 384 TMUs, 192 ROPs, and 96 RT cores, while the Arc B390 provides 1536 shading units, 48 TMUs, 24 ROPs, and 12 RT cores. Each resource category shows the W7900D at four times the unit count or higher.

The Arc B390's advantages are in power efficiency and form factor. Its 80 W TDP is substantially lower than the W7900D's 295 W, and its integrated design eliminates the need for power connectors, slot space, and a dedicated PSU recommendation. The 3 nm Intel process node also contrasts with the 5 nm TSMC node used for the W7900D.

The database records no direct performance comparison, so the observed benchmark data cannot be used to validate the specification-derived expectations. The only measured score belongs to the Arc B390, and it indicates entry-level positioning relative to the full GPU database. The W7900D remains unmeasured in the database, with its 50th percentile placeholder reflecting the absence of data rather than observed performance.