AMD Radeon 880M vs Intel Arc B390 Comparison

AMD Radeon 880M and Intel Arc B390 are both integrated graphics processors, but the recorded data places them in very different performance tiers. The 880M, built on the Strix Point chip with RDNA 3.5 architecture, has a wide range of benchmark results across multiple tests. The Arc B390, based on the Panther Lake chip with Xe3-LPG architecture, has only a single recorded benchmark result. The comparison relies heavily on that one shared test, the 3DMark Steel Nomad DX12 benchmark, which shows a decisive win for the Intel part.

Head-to-Head Benchmarks

The only direct head-to-head benchmark available in the database is the 3DMark Steel Nomad DX12 test. This result is the sole data point where both GPUs were measured under the same workload. The Intel Arc B390 scored 1482, while the AMD Radeon 880M scored 535. The delta percentage is recorded at -63.9, meaning the AMD part trails the Intel part by 63.9 percent in this specific test. This is a substantial margin, and it establishes the Arc B390 as the faster GPU in this modern DirectX 12 workload.

The Intel Arc B390's 1482 score places it in the 9th percentile of all GPUs in the database. Its nearest rivals, according to the recorded data, are the NVIDIA GeForce GT 520MX with an average score of 1463 and a delta of 1.3 percent, the NVIDIA GeForce 800M at 1460 with a 1.5 percent delta, the NVIDIA GeForce GT 625 OEM at 1446 with a 2.5 percent delta, and the NVIDIA GeForce GT 710 at 1443 with a 2.7 percent delta. This means the Arc B390 sits just ahead of these older discrete graphics cards, all of which are entry-level parts from previous generations.

The AMD Radeon 880M, despite losing the head-to-head test, has a much broader benchmark profile. Its average benchmark score across all recorded tests is 8436, which places it in the 43rd percentile of all GPUs. Its nearest rivals are the NVIDIA GeForce GTX 675MX with an average score of 8427 and a delta of 0.1 percent, the NVIDIA GeForce MX330 at 8458 with a delta of -0.3 percent, the AMD Radeon HD 8870M at 8462 with a delta of -0.3 percent, and the AMD Radeon R9 M375X at 8325 with a delta of 1.3 percent. The 880M's average score is therefore essentially level with these parts, sitting within a narrow band of roughly one percent on either side.

The discrepancy between the average benchmark score and the Steel Nomad result is notable. The 880M averages 8436 across ten separate tests, yet scores only 535 in Steel Nomad. The Arc B390 has only that one test on record, so its average score is also 1482. Direct comparison of average scores is not possible because the two GPUs do not share any other benchmark results beyond the one head-to-head test. The data indicates that in the shared workload, the Arc B390 delivers a far higher score, but the 880M demonstrates stronger overall performance in a wider variety of legacy and compute-oriented tests.

Where Each One Wins

The Intel Arc B390 wins the only directly comparable benchmark, the 3DMark Steel Nomad DX12 test. This is a modern DirectX 12 workload, and the 1482 score indicates that the Arc B390 is capable of producing a result that is roughly 2.8 times higher than the 880M's 535 in this same test. The Arc B390 also shows a higher peak throughput in its theoretical specifications, with 7.680 TFLOPS of FP32 performance compared to the 880M's 4.454 TFLOPS, and a higher pixel rate of 60.00 GPixel/s versus 46.40 GPixel/s.

The AMD Radeon 880M wins in the broader benchmark suite due to having multiple recorded results. Its Passmark G3D score is 7615, its Passmark G2D score is 969, and its Geekbench Vulkan score is 40006. The 880M also delivers a higher texture rate of 139.2 GTexel/s compared to the Arc B390's 120.0 GTexel/s, and a higher FP16 throughput on a 1:1 ratio, 4.454 TFLOPS, though the Arc B390 reaches 15.36 TFLOPS using a 2:1 ratio. The 880M's 43rd percentile ranking versus the Arc B390's 9th percentile ranking further reflects the AMD part's stronger standing in the overall database distribution.

For compute workloads, the 880M has a recorded Passmark GPU Compute score of 3719 and a Geekbench OpenCL score of 31285. The Arc B390 has no recorded compute benchmark results, so its compute performance cannot be assessed from the database. The 880M also supports a lower power envelope, with a TDP of 15 W, which positions it for more power-constrained implementations. The Arc B390 has a TDP of 80 W, which is over five times higher, suggesting it requires more power to achieve its higher Steel Nomad score.

Architecture Differences

The two GPUs use entirely different architectures and manufacturing processes. The AMD Radeon 880M is based on the RDNA 3.5 architecture, manufactured on a 4 nm process at TSMC. The chip is called Strix Point, and it belongs to the Navi III IGP generation for Strix Point Mobile. The Intel Arc B390 uses the Xe3-LPG architecture, manufactured on a 3 nm process at Intel's own foundry. Its chip is Panther Lake, and it belongs to the Arc Graphics-M generation for Panther Lake.

The Radeon 880M has a transistor count of 34,000 million on a die size of 233 mm², resulting in a transistor density of 145.9 million transistors per square millimeter. The Arc B390 has no recorded transistor count, die size, or density data, so a direct comparison of transistor budgets is not possible from the recorded information.

Both GPUs integrate the same number of ray tracing cores, 12 each. However, the shading unit counts differ significantly. The AMD Radeon 880M has 768 shading units, while the Intel Arc B390 has double that at 1536 shading units. Both have 48 texture mapping units, but the ROP count differs: the 880M has 16 ROPs, while the Arc B390 has 24 ROPs. The higher ROP count on the Intel part aligns with its higher pixel rate of 60.00 GPixel/s, whereas the AMD part's texture rate of 139.2 GTexel/s exceeds the Intel part's 120.0 GTexel/s despite the equal TMU count, due to the AMD part's higher boost clock.

The boost clocks are also distinct. The Radeon 880M has a base clock of 400 MHz and a boost clock of 2900 MHz. The Arc B390 has a base clock of 300 MHz and a boost clock of 2500 MHz. The AMD part runs at a higher frequency, which helps it achieve a higher texture rate with the same number of TMUs. The Intel part compensates with more shading units and ROPs.

Specification Differences

The two parts differ in several specification fields. The process node is 4 nm for the AMD part and 3 nm for the Intel part. The foundry is TSMC for AMD and Intel for the Arc B390. The architecture is RDNA 3.5 for the 880M and Xe3-LPG for the B390. The chip names are Strix Point and Panther Lake, respectively.

The shading unit count is 768 for AMD and 1536 for Intel. The ROP count is 16 for AMD and 24 for Intel. The FP32 compute is 4.454 TFLOPS for AMD and 7.680 TFLOPS for Intel. The FP16 compute is 4.454 TFLOPS with a 1:1 ratio for AMD and 15.36 TFLOPS with a 2:1 ratio for Intel. The pixel rate is 46.40 GPixel/s for AMD and 60.00 GPixel/s for Intel. The texture rate is 139.2 GTexel/s for AMD and 120.0 GTexel/s for Intel.

The TDP is 15 W for the AMD part and 80 W for the Intel part. The bus interface is PCIe 4.0 x8 for the AMD part and IGP for the Intel part. Both parts use system shared memory with system dependent bandwidth, and both are listed as IGP slot width with no power connectors. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The release dates are recorded as 2024-07-14 for the AMD part and 2026-01-26 for the Intel part. The AMD part's predecessor is listed as Navi II IGP, while the Intel part has no predecessor listed. Neither part has a recorded launch MSRP.

FAQ

Q: Which GPU has the higher score in the shared 3DMark Steel Nomad DX12 benchmark?

A: The Intel Arc B390 scores 1482, while the AMD Radeon 880M scores 535. The Intel part leads by 63.9 percent in this test.

Q: How do the two GPUs compare in average benchmark score?

A: The AMD Radeon 880M has an average benchmark score of 8436 across its recorded tests. The Intel Arc B390 has an average score of 1482, but this is based on only a single recorded benchmark, so the averages are not directly comparable.

Q: What are the percentile rankings for each GPU?

A: The AMD Radeon 880M is in the 43rd percentile of all GPUs, while the Intel Arc B390 is in the 9th percentile.

Q: Which GPU has more shading units?

A: The Intel Arc B390 has 1536 shading units, while the AMD Radeon 880M has 768 shading units.

Q: What is the difference in FP32 compute performance?

A: The Intel Arc B390 delivers 7.680 TFLOPS of FP32 compute, while the AMD Radeon 880M delivers 4.454 TFLOPS.

Q: Which GPU has a higher TDP?

A: The Intel Arc B390 has a TDP of 80 W, while the AMD Radeon 880M has a TDP of 15 W.

The Verdict

The recorded data shows two very different integrated GPUs. The Intel Arc B390 wins the only shared benchmark, the 3DMark Steel Nomad DX12 test, by a wide margin of 63.9 percent. It also has double the shading units, 1536 versus 768, and substantially higher theoretical compute, 7.680 TFLOPS versus 4.454 TFLOPS. Its pixel rate of 60.00 GPixel/s is also higher than the AMD part's 46.40 GPixel/s. For a user prioritizing performance in a modern DirectX 12 workload, the data points clearly to the Arc B390.

The AMD Radeon 880M, however, holds a stronger position in the overall database distribution, sitting at the 43rd percentile compared to the Arc B390's 9th percentile. Its average benchmark score of 8436 is far higher than the Arc B390's 1482, though that average is drawn from ten tests rather than one. The 880M also offers a higher texture rate, 139.2 GTexel/s, and a much lower TDP of 15 W versus 80 W. For systems where power consumption is a limiting factor, the 880M is the only viable option based on the recorded power figures.

The Arc B390 has no recorded results in OpenCL, Vulkan, Passmark, or Geekbench tests, so its performance in those areas is unknown. The 880M has results in all of those categories, giving it a wider known performance envelope. The choice between the two depends on the workload. For a single modern DirectX 12 benchmark, the Intel part is clearly ahead. For a broad range of applications and lower power draw, the AMD part has more recorded evidence of versatility.