AMD Radeon PRO W7800 vs Intel Arc B390 Comparison

AMD Radeon PRO W7800 and Intel Arc B390 occupy entirely different segments of the graphics market, as the recorded data shows a massive gulf in compute resources, memory configuration, and benchmark positioning. The W7800 is a professional workstation card built on the Navi 31 chip with RDNA 3.0 architecture, while the B390 is an integrated graphics processor based on the Panther Lake chip with Xe3-LPG architecture. Their average benchmark scores, percentile rankings, and nearest rival comparisons illustrate that these products serve fundamentally different purposes and performance tiers.

Where Each One Wins

The AMD Radeon PRO W7800 wins in every measurable compute category according to the database. Its average benchmark score of 164,894 places it in the 97th percentile of all GPUs, while the Intel Arc B390 averages just 1,482 points, landing in the 9th percentile. The W7800 delivers 45.25 TFLOPS of FP32 compute and 90.50 TFLOPS of FP16 performance, compared to the B390's 7.680 TFLOPS FP32 and 15.36 TFLOPS FP16. This represents a roughly 5.9x advantage in raw shader throughput for the AMD part.

The W7800's nearest rivals include the NVIDIA RTX A5500 with an average score of 165,217 (0.2% higher), the NVIDIA RTX 4500 Ada Generation at 166,094 (0.7% higher), and the AMD Radeon Pro W6900X at 168,574 (2.2% higher). The B390's nearest rivals are much older or lower-tier parts: the NVIDIA GeForce GT 520MX at 1,463 (1.3% lower), the GeForce 800M at 1,460 (1.5% lower), and the GeForce GT 625 OEM at 1,446 (2.5% lower). This means the B390 actually edges out those older discrete parts in the database, but it remains in a completely different performance class than the W7800.

The W7800 wins decisively in memory capacity and bandwidth. It carries 32 GB of GDDR6 memory on a 256-bit bus with 576.0 GB/s of bandwidth, whereas the B390 uses system shared memory with system-dependent bandwidth. The W7800 also has far more execution resources: 4,480 shading units, 280 texture mapping units, 128 raster output units, and 70 ray tracing cores, versus the B390's 1,536 shading units, 48 TMUs, 24 ROPs, and 12 RT cores.

Architecture Differences

The architectural divide between these two products is stark. The AMD Radeon PRO W7800 uses the Navi 31 chip built on a 5 nm TSMC process, containing 57,700 million transistors on a 529 mm² die with a transistor density of 109.1 million per mm². This is a massive, power-hungry discrete GPU designed for professional workloads. The Intel Arc B390 uses the Panther Lake chip on Intel's 3 nm process, and the database lists its transistor count, die size, and transistor density as unknown, indicating it is an integrated graphics processor rather than a standalone part.

The W7800 is a dual-slot card measuring 280 mm in length, 110 mm in height, and 40 mm in width, requiring two 8-pin power connectors and a 600 W suggested power supply. Its TDP is 260 W. The B390 is an IGP with no slot width specification, no power connectors, an 80 W TDP, and no suggested PSU rating. The B390's display outputs are listed as portable device dependent, confirming its role in mobile or compact systems, while the W7800 provides 3x DisplayPort 2.1 and 1x mini-DisplayPort 2.1 outputs.

Clock behavior differs substantially. The W7800 has a base clock of 1895 MHz and a boost clock of 2525 MHz, with memory running at 2250 MHz or 18 Gbps effective. The B390 has a much lower base clock of 300 MHz but a similar boost clock of 2500 MHz, and its memory clock is system shared. The W7800's pixel rate reaches 323.2 GPixel/s and texture rate 707.0 GTexel/s, while the B390 manages 60.00 GPixel/s and 120.0 GTexel/s respectively. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API feature parity exists despite the hardware disparity.

The W7800 was released on April 12, 2023, with a launch MSRP of 2,499 USD, and its predecessor is the Radeon Pro Vega. The B390 has a release date of January 26, 2026, and no predecessor listed. The W7800 uses a PCIe 4.0 x16 bus interface, while the B390 uses an integrated graphics processor bus interface, meaning it connects directly to the host system rather than through a dedicated slot.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark comparisons between these two products, which reflects their disparate testing environments. The W7800 has recorded results in Geekbench OpenCL with a score of 154,366 and Geekbench Vulkan with a score of 175,422. The B390 has a single recorded result in 3DMark Steel Nomad DX12 with a score of 1,482. These tests measure different workloads and cannot be directly compared, but the overall average scores tell the story.

The W7800's average benchmark score of 164,894 places it 1.5% ahead of the NVIDIA A100 PCIe 40 GB (162,504) and 2.2% behind the AMD Radeon Pro W6900X (168,574). It trails the RTX 4500 Ada Generation by 0.7% and the RTX A5500 by 0.2%, indicating that the W7800 sits in a tight competitive cluster among professional workstation GPUs. The B390's average score of 1,482 puts it 1.3% ahead of the GT 520MX (1,463), 1.5% ahead of the GeForce 800M (1,460), and 2.5% ahead of the GT 625 OEM (1,446), meaning it outperforms those legacy parts but by very small margins.

The percentile rankings reinforce the gap. The W7800's 97th percentile standing means it outperforms nearly all GPUs in the database, while the B390's 9th percentile places it in the bottom tier. The B390's nearest rivals are all NVIDIA parts from the early 2010s era, with deltas ranging from 1.3% to 2.7%, showing that even those old discrete GPUs are close competitors. The W7800's nearest rivals are modern professional cards with scores within 2.2% of its own, demonstrating that it competes at the top of the market.

FAQ

Q: How do the average benchmark scores compare between the AMD Radeon PRO W7800 and the Intel Arc B390?

A: The W7800 has an average benchmark score of 164,894, placing it in the 97th percentile of all GPUs. The B390 has an average score of 1,482, placing it in the 9th percentile. The W7800's score is over 100 times higher than the B390's.

Q: What are the nearest rivals for each product according to the database?

A: The W7800's nearest rivals are the NVIDIA RTX A5500 (165,217, 0.2% higher), NVIDIA RTX 4500 Ada Generation (166,094, 0.7% higher), NVIDIA A100 PCIe 40 GB (162,504, 1.5% lower), and AMD Radeon Pro W6900X (168,574, 2.2% higher). The B390's nearest rivals are the NVIDIA GeForce GT 520MX (1,463, 1.3% lower), GeForce 800M (1,460, 1.5% lower), GT 625 OEM (1,446, 2.5% lower), and GT 710 (1,443, 2.7% lower).

Q: What memory configurations do the two products use?

A: The W7800 has 32 GB of GDDR6 memory on a 256-bit bus with 576.0 GB/s bandwidth. The B390 uses system shared memory with system shared type, bus width, and system dependent bandwidth.

Q: How do the compute resources differ between the two GPUs?

A: The W7800 has 4,480 shading units, 280 TMUs, 128 ROPs, and 70 RT cores. The B390 has 1,536 shading units, 48 TMUs, 24 ROPs, and 12 RT cores. The W7800 delivers 45.25 TFLOPS FP32 and 90.50 TFLOPS FP16, while the B390 delivers 7.680 TFLOPS FP32 and 15.36 TFLOPS FP16.

Q: What are the physical and power characteristics of each product?

A: The W7800 is a dual-slot card measuring 280 mm by 110 mm by 40 mm, with a 260 W TDP, two 8-pin power connectors, and a 600 W suggested PSU. The B390 is an IGP with an 80 W TDP, no power connectors, and no suggested PSU listed.

Q: When were these products released?

A: The W7800 was released on April 12, 2023, and the B390 has a release date of January 26, 2026. The W7800 has a launch MSRP of 2,499 USD, while the B390 has no launch MSRP listed.

The Verdict

The data shows that the AMD Radeon PRO W7800 is a high-end professional workstation GPU aimed at compute-intensive tasks, based on its 97th percentile ranking, 32 GB memory capacity, and 45.25 TFLOPS FP32 throughput. Its nearest rivals are contemporary professional cards from NVIDIA and AMD, with scores within 2.2% of its own, indicating that it competes directly in that segment. The 260 W TDP, dual-slot design, and dedicated power connectors confirm it is a discrete add-in card for full-size workstations.

The Intel Arc B390 is an integrated graphics processor in the 9th percentile, with only 7.680 TFLOPS FP32 performance and system shared memory. Its nearest rivals are legacy discrete GPUs from over a decade ago, and it edges them by margins of 1.3% to 2.7%. The 80 W TDP, IGP form factor, and portable device dependent display outputs indicate it is meant for lightweight mobile or compact systems where dedicated graphics are not an option.

Users who require professional-grade compute performance, large memory capacity, and high bandwidth should select the W7800, as the benchmark data shows it delivers workstation-class results in the top percentile. Users who need basic graphics capability in an integrated package with low power consumption should consider the B390, which outperforms several older discrete GPUs in the database but remains in the bottom performance tier. The two products do not compete with each other in any meaningful sense, as their performance classes are separated by more than two orders of magnitude in average benchmark score.