AMD Radeon 8040S vs Intel Arc Pro B390 Comparison

The Verdict

The recorded data presents a clear split between these two integrated graphics processors. The AMD Radeon 8040S is a shipped, measured product with a substantial benchmark history, while the Intel Arc Pro B390 is a newer part with no recorded benchmark scores in the database at this time. For users who require verified performance data today, the AMD Radeon 8040S is the only option with measurable results.

The AMD Radeon 8040S holds an average benchmark score of 2440, placing it in the 17th percentile of all GPUs. Its nearest rivals in the database include the NVIDIA GeForce 710M (average score 2433, delta 0.3%), the Intel HD Graphics 610 (2425, delta 0.6%), and the NVIDIA GeForce GT 710M (2422, delta 0.7%). It sits marginally behind the AMD Radeon RX 7400 (2467, delta -1.1%). These figures indicate the Radeon 8040S performs at a level comparable to entry-level discrete GPUs from previous generations.

The Intel Arc Pro B390 has no benchmark scores recorded, so its real-world performance cannot be assessed from the database. Its theoretical specifications suggest higher compute capability, but without measured results, any performance comparison must remain speculative. The Arc Pro B390 does occupy the 50th percentile slot in the database, but this is based on its classification rather than actual test scores.

For system integrators or users who need a known quantity, the Radeon 8040S delivers verified data across multiple DirectX versions and compute workloads. For those considering the Arc Pro B390, the database currently offers no evidence of its performance, making it an unverified choice until benchmark results become available.

Architecture Differences

The AMD Radeon 8040S uses the Strix Halo chip built on RDNA 3.5 architecture, fabricated on a 4 nm process at TSMC. Its die size measures 308 mm². The Intel Arc Pro B390 uses the Panther Lake chip with Xe3-LPG architecture, fabricated on a 3 nm process at Intel. Its die size is not recorded.

The Radeon 8040S belongs to the Navi Mobile (RX 8000M) generation, while the Arc Pro B390 belongs to the Arc Graphics-WM (Panther Lake) generation. Their predecessors differ as well: the Radeon 8040S succeeds Polaris Mobile, while the Arc Pro B390 succeeds HD Graphics-WM.

Both are integrated graphics processors (IGP) with system-shared memory and portable-device-dependent display outputs. Neither uses external power connectors. The Radeon 8040S connects via PCIe 5.0 x16, while the Arc Pro B390 uses an IGP bus interface.

The API support is identical: both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both are currently marked as Active production status.

The release dates differ substantially: the Radeon 8040S launched on 2025-01-05, while the Arc Pro B390 launched on 2026-01-26. This explains the absence of benchmark data for the Intel part; it is a newer product with less accumulated testing history.

FAQ

Q: Which GPU has more shading units?

A: The Intel Arc Pro B390 has 1536 shading units, compared to 1024 on the AMD Radeon 8040S. This represents a 50% higher count for the Intel part.

Q: Do both GPUs support the same graphics APIs?

A: Yes. Both the AMD Radeon 8040S and Intel Arc Pro B390 support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the thermal design power difference?

A: The AMD Radeon 8040S has a TDP of 55 W, while the Intel Arc Pro B390 has a TDP of 80 W. The Intel part draws 25 W more power.

Q: How does the AMD Radeon 8040S compare to its nearest rivals?

A: The Radeon 8040S scores 0.3% above the NVIDIA GeForce 710M (2433), 0.6% above the Intel HD Graphics 610 (2425), 0.7% above the NVIDIA GeForce GT 710M (2422), and 1.1% below the AMD Radeon RX 7400 (2467).

Q: Are there any recorded benchmarks for the Intel Arc Pro B390?

A: No. The database contains no benchmark scores for the Arc Pro B390. Its average benchmark score is listed as 0, and it has no nearest rivals recorded.

Q: Which GPU has the higher boost clock?

A: The AMD Radeon 8040S has a boost clock of 2800 MHz, while the Intel Arc Pro B390 has a boost clock of 2500 MHz. The Radeon runs 300 MHz higher at boost.

Specification Differences

The AMD Radeon 8040S and Intel Arc Pro B390 differ across several specification categories:

• Chip: Strix Halo versus Panther Lake
• Architecture: RDNA 3.5 versus Xe3-LPG
• Generation: Navi Mobile (RX 8000M) versus Arc Graphics-WM (Panther Lake)
• Process Node: 4 nm (TSMC) versus 3 nm (Intel)
• Die Size: 308 mm² versus unknown
• Base Clock: 1295 MHz versus 300 MHz
• Boost Clock: 2800 MHz versus 2500 MHz
• Shading Units: 1024 versus 1536
• TMUs: 64 versus 48
• ROPs: 32 versus 24
• RT Cores: 16 versus 12
• Pixel Rate: 89.60 GPixel/s versus 60.00 GPixel/s
• Texture Rate: 179.2 GTexel/s versus 120.0 GTexel/s
• FP32: 5.734 TFLOPS versus 7.680 TFLOPS
• FP16: 5.734 TFLOPS (1:1) versus 15.36 TFLOPS (2:1)
• TDP: 55 W versus 80 W
• Bus Interface: PCIe 5.0 x16 versus IGP
• Release Date: 2025-01-05 versus 2026-01-26
• Predecessor: Polaris Mobile versus HD Graphics-WM

Memory configuration is identical for both: system shared size, type, bus width, and system-dependent bandwidth. Neither has a launch MSRP recorded.

Head-to-Head Benchmarks

The database records no head-to-head benchmark results between the AMD Radeon 8040S and Intel Arc Pro B390. The wins counter shows 0 for both parts. This absence of direct comparison data reflects the Intel part's lack of any recorded benchmark scores.

However, the AMD Radeon 8040S has a full suite of measured results across seven tests. Its PassMark DirectX 10 score is 48, DirectX 11 score is 80, DirectX 12 score is 47, and DirectX 9 score is 134. The G2D score is 1052, G3D score is 10578, and GPU compute score is 5138. These numbers provide a baseline for what the Radeon delivers.

The Intel Arc Pro B390 cannot be positioned against these figures. Its theoretical FP32 output of 7.680 TFLOPS is 34% higher than the Radeon's 5.734 TFLOPS, and its FP16 output of 15.36 TFLOPS is 2.68 times the Radeon's 5.734 TFLOPS. The shading unit advantage (1536 versus 1024) suggests higher raw compute potential. Yet texture rate favors the Radeon: 179.2 GTexel/s versus 120.0 GTexel/s, a 49% advantage. Pixel rate also favors the Radeon: 89.60 GPixel/s versus 60.00 GPixel/s, a 49% gap.

The Radeon 8040S also holds clock advantages. Its base clock of 1295 MHz is more than four times the Arc Pro B390's 300 MHz base. Its boost clock of 2800 MHz exceeds the Intel part's 2500 MHz by 12%. These clock differences partially explain the Radeon's higher texture and pixel throughput despite fewer shading units.

The Arc Pro B390 counters with more RT cores (16 versus 12, a 33% advantage for the Radeon actually, correcting for the count: 16 Radeon versus 12 Intel, so the Radeon leads by 33% here). The Intel part has more shading units by 50%, but fewer TMUs (48 versus 64) and ROPs (24 versus 32). The Radeon leads in texture and pixel rates by 49% each, while the Intel part leads in FP32 by 34% and FP16 by 168%.

The power envelope differs by 25 W: the Radeon draws 55 W, the Arc Pro B390 draws 80 W. This higher power allocation for the Intel part corresponds to its higher theoretical floating-point throughput. The Radeon achieves its texture and pixel advantages within a lower power budget.

The recorded data shows the Radeon 8040S as a balanced part with verified performance close to several entry-level discrete GPUs. The Arc Pro B390 remains a specification-only entry in the database. Its theoretical advantages in FP32 and FP16 have not been validated by any benchmark run. Until the Intel part accumulates measured scores, the Radeon 8040S stands as the only fully characterized option between these two.