AMD Radeon 680M vs Intel Arc Pro B390 Comparison

Head-to-Head Benchmarks

The recorded data presents an unusual comparison scenario. The AMD Radeon 680M has three benchmark entries in the database, while the Intel Arc Pro B390 currently has no recorded benchmark scores. This means a direct numerical head-to-head comparison is not possible from the available measurements. The Radeon 680M's average benchmark score of 15270 places it at the 57th percentile of all GPUs in the database. Its nearest rivals include the NVIDIA GeForce GTX 580 with an average score of 15283 and a delta of -0.1%, the NVIDIA GeForce RTX 2060 with an average score of 15290 and a delta of -0.1%, the NVIDIA GeForce RTX 3050 OEM with an average score of 15199 and a delta of 0.5%, and the AMD Radeon RX 7600 with an average score of 15171 and a delta of 0.7%. These deltas indicate that the Radeon 680M sits within a tight performance cluster, essentially matching the GTX 580 and RTX 2060 while marginally trailing them, and slightly edging out the RTX 3050 OEM and RX 7600 by less than one percent.

For the Intel Arc Pro B390, the database lists a 50th percentile ranking against all GPUs, but with an average benchmark score of zero and no entries in the benchmark array. The absence of recorded measurements means the percentile figure appears to be a placeholder rather than a derived statistic. The data cannot confirm any performance advantage for either product in a direct comparison. What is clear is that the Radeon 680M has established a measurable baseline across three distinct workloads, while the Arc Pro B390 has no comparable data points yet. The Radeon 680M's individual scores include 378 in 3DMark Steel Nomad DX12, 23468 in Geekbench OpenCL, and 21965 in Geekbench Vulkan. These figures show a strong Vulkan result relative to the OpenCL score, indicating the RDNA 2.0 architecture handles the Vulkan API efficiently in the recorded tests.

Architecture Differences

The two integrated graphics processors come from different manufacturing and design philosophies. The AMD Radeon 680M uses the Rembrandt+ chip built on RDNA 2.0 architecture, with a generation designation of Navi II IGP (Rembrandt Mobile). It is fabricated on a 6 nm process at TSMC, containing 13,100 million transistors on a 208 mm² die, yielding a transistor density of 63.0 million transistors per square millimeter. The Intel Arc Pro B390 uses the Panther Lake chip built on Xe3-LPG architecture, with a generation designation of Arc Graphics-WM (Panther Lake). It is fabricated on a 3 nm process at Intel's own foundry, though the transistor count, die size, and density are listed as unknown in the database.

The shading unit counts differ substantially. The Radeon 680M has 768 shading units, while the Arc Pro B390 has 1536 shading units, exactly double. Both have 48 texture mapping units, but the Radeon 680M has 32 ROPs compared to the Intel part's 24 ROPs. Both feature 12 ray tracing cores. The compute throughput reflects the shading unit disparity: the Radeon 680M delivers 3.379 TFLOPS of FP32 performance, while the Arc Pro B390 delivers 7.680 TFLOPS, more than double. FP16 performance follows the same pattern, with the Radeon at 6.758 TFLOPS (2:1 ratio) and the Intel at 15.36 TFLOPS (2:1 ratio).

Clock behavior differs significantly. The Radeon 680M has a base clock of 2000 MHz and a boost clock of 2200 MHz, a modest 200 MHz uplift. The Arc Pro B390 has a base clock of just 300 MHz but a boost clock of 2500 MHz, representing a much wider dynamic range. This suggests the Intel part is designed to idle aggressively and ramp up substantially under load. Pixel rate favors the AMD part at 70.40 GPixel/s versus 60.00 GPixel/s for the Intel part, while texture rate favors the Intel part at 120.0 GTexel/s versus 105.6 GTexel/s for the AMD part.

Both products use system-shared memory with system-dependent bandwidth, so no dedicated memory specifications exist for either. Both are integrated graphics processors (IGP) with no power connectors and portable-device-dependent display outputs. The Radeon 680M connects via PCIe 4.0 x8, while the Arc Pro B390's bus interface is listed simply as IGP, suggesting a different integration approach. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Power consumption differs, with the Radeon 680M rated at 50 W TDP and the Arc Pro B390 rated at 80 W TDP. Release dates also differ, with the Radeon 680M launching on January 2, 2023, and the Arc Pro B390 on January 26, 2026. The Radeon 680M's predecessor is Vega II IGP and its successor is Navi III IGP, while the Arc Pro B390's predecessor is HD Graphics-WM with no successor listed.

FAQ

Q: Which GPU has a higher FP32 compute throughput?

A: The Intel Arc Pro B390 delivers 7.680 TFLOPS of FP32 performance, more than double the AMD Radeon 680M's 3.379 TFLOPS.

Q: Do both GPUs support the same graphics APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 according to the recorded specifications.

Q: What is the transistor count for each GPU?

A: The AMD Radeon 680M contains 13,100 million transistors on a 208 mm² die. The Intel Arc Pro B390's transistor count is listed as unknown in the database.

Q: How do the shading unit counts compare?

A: The Intel Arc Pro B390 has 1536 shading units, exactly double the 768 shading units found in the AMD Radeon 680M.

Q: What are the TDP ratings for these integrated GPUs?

A: The AMD Radeon 680M is rated at 50 W, while the Intel Arc Pro B390 is rated at 80 W.

Q: Which GPU has a higher pixel fill rate?

A: The AMD Radeon 680M achieves 70.40 GPixel/s, which is higher than the Intel Arc Pro B390's 60.00 GPixel/s despite the Intel part having a higher texture rate.

Specification Differences

The following fields differ between the AMD Radeon 680M and the Intel Arc Pro B390:

• Chip: Rembrandt+ versus Panther Lake
• Architecture: RDNA 2.0 versus Xe3-LPG
• Generation: Navi II IGP (Rembrandt Mobile) versus Arc Graphics-WM (Panther Lake)
• Process Node: 6 nm versus 3 nm
• Foundry: TSMC versus Intel
• Transistors: 13,100 million versus unknown
• Die Size: 208 mm² versus unknown
• Transistor Density: 63.0M / mm² versus null
• Base Clock: 2000 MHz versus 300 MHz
• Boost Clock: 2200 MHz versus 2500 MHz
• Shading Units: 768 versus 1536
• ROPs: 32 versus 24
• Pixel Rate: 70.40 GPixel/s versus 60.00 GPixel/s
• Texture Rate: 105.6 GTexel/s versus 120.0 GTexel/s
• FP32: 3.379 TFLOPS versus 7.680 TFLOPS
• FP16: 6.758 TFLOPS (2:1) versus 15.36 TFLOPS (2:1)
• TDP: 50 W versus 80 W
• Bus Interface: PCIe 4.0 x8 versus IGP
• Release Date: January 2, 2023 versus January 26, 2026
• Predecessor: Vega II IGP versus HD Graphics-WM
• Successor: Navi III IGP versus null
• Benchmark Scores: Three recorded scores versus none
• Percentile vs All GPUs: 57 versus 50
• Average Benchmark Score: 15270 versus 0

The fields that are identical include memory configuration (system shared, system dependent bandwidth), TMUs (48 each), RT cores (12 each), tensor cores (null for both), slot width (IGP), power connectors (none), display outputs (portable device dependent), and the API set (DirectX 12 Ultimate 12_2, OpenGL 4.6, Vulkan 1.4).

Where Each One Wins

The AMD Radeon 680M demonstrates strengths in several measurable areas based on the recorded data. Its pixel rate of 70.40 GPixel/s exceeds the Intel Arc Pro B390's 60.00 GPixel/s, indicating better raw pixel throughput for fill-rate-bound workloads. The Radeon 680M also has a higher ROP count at 32 versus 24, which aligns with its pixel rate advantage. The AMD part operates at a lower TDP of 50 W compared to 80 W for the Intel part, suggesting higher efficiency per watt in the recorded specifications. The Radeon 680M's higher base clock of 2000 MHz versus 300 MHz means it maintains substantial performance even without boost engagement. The database contains actual benchmark results for the Radeon 680M, establishing a concrete performance baseline across 3DMark Steel Nomad DX12, Geekbench OpenCL, and Geekbench Vulkan workloads. Its average benchmark score of 15270 places it at the 57th percentile, with nearest rivals showing deltas within one percent either way.

The Intel Arc Pro B390 claims advantages in compute-heavy specifications. Its FP32 throughput of 7.680 TFLOPS more than doubles the Radeon 680M's 3.379 TFLOPS, indicating substantially higher raw compute capacity for general-purpose workloads. The FP16 performance of 15.36 TFLOPS similarly doubles the AMD part's 6.758 TFLOPS. The Intel part's 1536 shading units provide double the shader processing width. Its texture rate of 120.0 GTexel/s exceeds the AMD part's 105.6 GTexel/s, suggesting better texture-heavy workload performance. The boost clock of 2500 MHz is higher than the Radeon 680M's 2200 MHz, allowing the Intel part to reach a higher peak frequency. The 3 nm process node from Intel represents a more advanced manufacturing technology compared to the 6 nm TSMC node, potentially enabling the higher clock ceiling and compute density. The Arc Pro B390 also has a more recent release date of January 26, 2026, versus January 2, 2023, indicating a newer design generation.

For use-case allocation, the data suggests the Radeon 680M is better suited to scenarios where pixel throughput, lower power consumption, and established benchmark performance matter. The Arc Pro B390 appears positioned for compute-intensive tasks where FP32 and FP16 throughput dominate. However, the lack of any benchmark scores for the Intel part means its real-world performance remains unverified in the database. The 50th percentile ranking for the Arc Pro B390, combined with a zero average score, indicates the database has not yet captured performance measurements for this product. Until benchmarks are recorded, the Intel part's theoretical compute advantages cannot be confirmed against the Radeon 680M's measured results. The Radeon 680M's position within one percent of the GTX 580, RTX 2060, RTX 3050 OEM, and RX 7600 establishes a known performance envelope, while the Arc Pro B390's envelope remains undefined by the recorded data.