Intel Arc B390 vs NVIDIA GeForce RTX 5070 Ti Mobile Comparison

FAQ

Q: What is the performance class of the Intel Arc B390 according to the database?

A: The Intel Arc B390 sits at the 9th percentile of all GPUs in the database, with an average benchmark score of 1482. Its closest rivals are the NVIDIA GeForce GT 520MX (1463, 1.3% ahead), the NVIDIA GeForce 800M (1460, 1.5% ahead), the NVIDIA GeForce GT 625 OEM (1446, 2.5% ahead), and the NVIDIA GeForce GT 710 (1443, 2.7% ahead).

Q: What is the performance class of the NVIDIA GeForce RTX 5070 Ti Mobile?

A: The RTX 5070 Ti Mobile is at the 80th percentile of all GPUs, with an average benchmark score of 35435. Its nearest rivals include the NVIDIA Quadro GV100 (35520, 0.2% ahead), the AMD Radeon Pro Duo (35860, 1.2% ahead), the NVIDIA A2 (34690, 2.1% behind), and the NVIDIA T1000 (36289, 2.4% ahead).

Q: Which GPU has a higher boost clock?

A: The Intel Arc B390 has a boost clock of 2500 MHz, which is substantially higher than the 1447 MHz boost clock of the RTX 5070 Ti Mobile. However, the RTX 5070 Ti Mobile has a higher base clock at 847 MHz compared to 300 MHz for the Arc B390.

Q: What are the memory configurations of these two GPUs?

A: The Intel Arc B390 uses system shared memory, with type, bus width, and bandwidth all being system dependent. The RTX 5070 Ti Mobile has 12 GB of GDDR7 memory on a 192-bit bus with 672.0 GB/s of bandwidth and a 1750 MHz memory clock (28 Gbps effective).

Q: Which GPU has more shading units and texture mapping units?

A: The RTX 5070 Ti Mobile has 5888 shading units, 184 TMUs, and 80 ROPs. The Arc B390 has 1536 shading units, 48 TMUs, and 24 ROPs. The RTX 5070 Ti Mobile also has 46 RT cores and 184 tensor cores, while the Arc B390 has 12 RT cores and no tensor cores listed.

Q: What is the power draw difference between the two?

A: The Intel Arc B390 has a TDP of 80 W, while the RTX 5070 Ti Mobile has a TDP of 60 W. Both are integrated into portable devices with no dedicated power connectors.

Where Each One Wins

The data shows a stark performance gap between these two mobile graphics solutions. The RTX 5070 Ti Mobile wins decisively in every recorded benchmark category, holding an 80th percentile position compared to the Arc B390's 9th percentile. The average benchmark score difference is substantial: the RTX 5070 Ti Mobile averages 35435 versus 1482 for the Arc B390, a multiple of roughly 24 times.

The RTX 5070 Ti Mobile demonstrates its strength across DirectX 10, 11, and 12 workloads in PassMark, scoring 151, 237, and 102 respectively. Its PassMark G3D score of 24004 and GPU compute score of 10101 further confirm its dominance in both rasterization and general-purpose compute tasks. The Geekbench OpenCL score of 143870 and Vulkan score of 139213 show strong performance in cross-platform compute and graphics APIs.

For the Arc B390, the only recorded benchmark is 3DMark Steel Nomad DX12 with a score of 1482. This places it near the very bottom of the database's GPU hierarchy, in the same performance neighborhood as older entry-level discrete GPUs like the GT 710 and GT 625 OEM. The Arc B390's relative standing suggests it is suited for basic display output and light graphical workloads rather than demanding gaming or content creation. Its 9th percentile rank indicates that approximately 91% of all GPUs in the database perform better.

The use-case split is clear: the RTX 5070 Ti Mobile targets high-end mobile gaming and professional workloads, while the Arc B390 appears positioned for integrated graphics duties in thin-and-light portables where the 80 W TDP and system-shared memory keep costs and complexity low. The RTX 5070 Ti Mobile, despite a lower 60 W TDP, delivers far higher performance due to its dedicated 12 GB GDDR7 memory and much larger shader array.

Architecture Differences

The Intel Arc B390 is built on the Panther Lake chip using the Xe3-LPG architecture, fabricated on a 3 nm process at Intel. The RTX 5070 Ti Mobile uses the GB205 chip with Blackwell 2.0 architecture, manufactured on a 5 nm process at TSMC. These represent fundamentally different design philosophies: Intel's integrated graphics approach versus NVIDIA's discrete mobile GPU strategy.

Transistor counts differ dramatically. The RTX 5070 Ti Mobile packs 31,100 million transistors on a 263 mm² die, yielding a transistor density of 118.3M per mm². The Arc B390's transistor count and die size are not recorded in the database, but as an integrated graphics processor it shares the Panther Lake package with CPU components.

The RTX 5070 Ti Mobile includes 184 tensor cores and 46 RT cores, providing dedicated hardware for AI acceleration and ray tracing. The Arc B390 has 12 RT cores but no tensor cores listed, indicating a more limited feature set for AI workloads. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API-level feature parity exists, but the underlying hardware capabilities differ substantially.

The memory architecture is another major divergence. The Arc B390 uses system shared memory with no dedicated VRAM, making performance dependent on the host system's memory bandwidth and capacity. The RTX 5070 Ti Mobile has 12 GB of GDDR7 on a 192-bit bus with 672.0 GB/s bandwidth, a large dedicated pool that removes memory contention with the CPU.

The bus interface also differs: the Arc B390 connects via IGP (integrated graphics processor) directly to the CPU package, while the RTX 5070 Ti Mobile uses PCIe 5.0 x16. This reflects the Arc B390's role as a system-on-chip component versus the RTX 5070 Ti Mobile's status as a discrete add-in GPU, even though both are soldered into portable devices.

Specification Differences

The clock specifications show contrasting strategies. The Arc B390 operates at a 300 MHz base and 2500 MHz boost, while the RTX 5070 Ti Mobile runs at 847 MHz base and 1447 MHz boost. The Arc B390's higher boost clock compensates somewhat for its smaller execution resources, but the sheer difference in compute units remains decisive.

Compute resources are heavily skewed toward the RTX 5070 Ti Mobile. It has 5888 shading units versus 1536 for the Arc B390, 184 TMUs versus 48, and 80 ROPs versus 24. The RTX 5070 Ti Mobile also has 46 RT cores versus 12, and 184 tensor cores versus none recorded for the Arc B390.

Pixel and texture rates reflect these differences. The RTX 5070 Ti Mobile achieves 115.8 GPixel/s and 266.2 GTexel/s, while the Arc B390 manages 60.00 GPixel/s and 120.0 GTexel/s. Floating-point throughput follows the same pattern: the RTX 5070 Ti Mobile delivers 17.04 TFLOPS FP32 and 17.04 TFLOPS FP16 (1:1 ratio), while the Arc B390 provides 7.680 TFLOPS FP32 and 15.36 TFLOPS FP16 (2:1 ratio).

Memory specifications show the largest gap. The Arc B390 has system shared memory with system dependent bandwidth, while the RTX 5070 Ti Mobile uses 12 GB GDDR7 with 672.0 GB/s bandwidth on a 192-bit bus. The memory clock is 1750 MHz (28 Gbps effective) for the RTX 5070 Ti Mobile.

Power draw favors the RTX 5070 Ti Mobile despite its higher performance: 60 W TDP versus 80 W for the Arc B390. Both are IGP form factors with no power connectors and portable-device-dependent display outputs. The RTX 5070 Ti Mobile was released on 2025-02-28, while the Arc B390 has a release date of 2026-01-26, making it a newer product.

Head-to-Head Benchmarks

There are no direct head-to-head benchmark comparisons recorded between the Intel Arc B390 and the NVIDIA GeForce RTX 5070 Ti Mobile. Instead, the database provides separate benchmark results for each product. The Arc B390 has a single entry: 3DMark Steel Nomad DX12 at 1482. The RTX 5070 Ti Mobile has nine entries spanning Geekbench and PassMark suites.

The most striking comparison comes from average benchmark scores. The RTX 5070 Ti Mobile averages 35435, while the Arc B390 averages 1482. The RTX 5070 Ti Mobile's score is approximately 24 times higher, placing it in the 80th percentile of all GPUs versus the 9th percentile for the Arc B390.

The RTX 5070 Ti Mobile's nearest rivals provide context for its standing. It trails the NVIDIA Quadro GV100 by 0.2% (35520) and the AMD Radeon Pro Duo by 1.2% (35860), while leading the NVIDIA A2 by 2.1% (34690) and the NVIDIA T1000 by 2.4% (36289, meaning the T1000 is actually ahead). This places it in the upper-midrange of professional and workstation-class GPUs.

The Arc B390's nearest rivals are all entry-level legacy GPUs. It leads the NVIDIA GeForce GT 520MX by 1.3% (1463), the NVIDIA GeForce 800M by 1.5% (1460), the NVIDIA GeForce GT 625 OEM by 2.5% (1446), and the NVIDIA GeForce GT 710 by 2.7% (1443). These deltas are small, indicating the Arc B390 sits at the very bottom of the performance spectrum, barely above decade-old discrete GPUs.

Individual benchmark scores for the RTX 5070 Ti Mobile show strong compute performance: Geekbench OpenCL at 143870 and Vulkan at 139213. PassMark results are more varied, with G3D at 24004, GPU compute at 10101, G2D at 981, DirectX 9 at 259, DirectX 11 at 237, DirectX 10 at 151, and DirectX 12 at 102. The DirectX 12 score is notably lower than DirectX 11, suggesting driver overhead or workload characteristics rather than hardware limitations.

The Arc B390's single 3DMark Steel Nomad DX12 score of 1482 cannot be directly compared to any RTX 5070 Ti Mobile result, as no shared benchmark exists. The database records zero wins for either product in head-to-head comparisons, and the winsA and winsB fields are both zero. This absence of overlapping benchmark data means the performance gap must be inferred from percentile rankings and average scores.

The percentile difference is the clearest signal: 80 versus 9. The RTX 5070 Ti Mobile outperforms the vast majority of GPUs in the database, while the Arc B390 sits among the lowest-performing entries. The RTX 5070 Ti Mobile's 12 GB GDDR7 memory and 17.04 TFLOPS FP32 throughput enable workloads entirely beyond the Arc B390's system-shared memory and 7.680 TFLOPS capability. For any compute-intensive or graphically demanding task, the recorded data indicates the RTX 5070 Ti Mobile is the only viable choice between the two.