Intel Arc B390 vs NVIDIA RTX 1000 Mobile Ada Generation Comparison

Head-to-Head Benchmarks

The benchmark database contains a single recorded 3DMark Steel Nomad DX12 result for the Intel Arc B390, scoring 1482 points. The NVIDIA RTX 1000 Mobile Ada Generation has no recorded benchmark entries in the database, meaning direct head-to-head comparisons cannot be drawn from measured scores. Instead, the Arc B390's standing can be assessed against its nearest rivals, all of which are older NVIDIA discrete mobile parts.

The Arc B390's 1482 score places it in the 9th percentile of all GPUs in the database. Its closest competitor is the NVIDIA GeForce GT 520MX, which averages 1463 points, a 1.3% difference. The Arc B390 leads that part by roughly 19 points, a narrow margin that suggests near-parity in this specific DX12 workload. The next nearest rival, the NVIDIA GeForce 800M, averages 1460 points, trailing by 1.5% or 22 points. The gap widens slightly against the NVIDIA GeForce GT 625 OEM at 1446 points (2.5% behind) and the NVIDIA GeForce GT 710 at 1443 points (2.7% behind). These deltas confirm that the Arc B390 sits at the very bottom of the performance spectrum, only marginally ahead of a cluster of decade-old entry-level GPUs.

The RTX 1000 Mobile Ada Generation presents a different profile on paper. Its FP32 throughput is listed at 10.37 TFLOPS, which is 35% higher than the Arc B390's 7.680 TFLOPS. Pixel fill rate favors the NVIDIA part substantially: 97.20 GPixel/s versus 60.00 GPixel/s, a 62% advantage. Texture rate also leans NVIDIA, with 162.0 GTexel/s compared to 120.0 GTexel/s, a 35% lead. These theoretical figures point to a clear rasterization advantage for the RTX 1000 Mobile, but without a recorded benchmark score, the database cannot quantify how that translates into actual frame rates.

Memory bandwidth is another major differentiator. The RTX 1000 Mobile uses 6 GB of GDDR6 on a 96-bit bus, delivering 192.0 GB/s. The Arc B390 relies on system shared memory with bandwidth described as system dependent, meaning its effective throughput varies by host platform and cannot be stated as a fixed number. The NVIDIA part's dedicated VRAM also provides 6 GB of capacity versus a shared pool that is not quantified in the database.

Clock behavior differs as well. The Arc B390 has a base clock of 300 MHz and a boost clock of 2500 MHz, a wide dynamic range typical of integrated graphics. The RTX 1000 Mobile runs at a base of 1485 MHz and boosts to 2025 MHz, a narrower spread. The Arc B390's higher boost clock does not compensate for its lower shader count and memory setup in the theoretical throughput calculations.

Power consumption is starkly different. The Arc B390 is rated at 80 W TDP, while the RTX 1000 Mobile consumes 35 W TDP. That means the NVIDIA part delivers higher theoretical compute and memory bandwidth at less than half the power draw. Both are integrated form factors (IGP slot width) with no power connectors and portable-device-dependent display outputs, but the underlying efficiency gap is significant.

The Arc B390's shading unit count is 1536, versus 2560 for the RTX 1000 Mobile. Texture mapping units number 48 versus 80, and ROPs are 24 versus 48. The NVIDIA part also includes 20 ray tracing cores and 80 tensor cores, while the Arc B390 lists 12 ray tracing cores and no tensor core count in the database. The RTX 1000 Mobile's tensor cores provide dedicated AI acceleration hardware that the Intel part lacks entirely.

The Verdict

The data indicates two GPUs aimed at entirely different performance tiers. The Arc B390's lone benchmark score of 1482 places it in the 9th percentile of all GPUs, alongside NVIDIA GeForce GT 710-class parts from a decade prior. Its nearest rivals all score within 1.3% to 2.7% of its result, which means the recorded performance is entry-level by any measure. The RTX 1000 Mobile Ada Generation occupies the 50th percentile in the database, a position that reflects a substantially higher standing even though no direct benchmark score is recorded for it.

Theoretical metrics reinforce this separation. The RTX 1000 Mobile delivers 35% higher FP32 throughput, 62% higher pixel rate, and 35% higher texture rate than the Arc B390. It also has 6 GB of dedicated GDDR6 memory with 192.0 GB/s of bandwidth, while the Arc B390 depends on system shared memory. The NVIDIA part achieves all of this at 35 W TDP compared to 80 W for Intel, indicating a far more efficient design.

The Arc B390's advantages are limited to its process node, listed at 3 nm versus 5 nm for NVIDIA, and its newer release date of January 2026 versus February 2024 for the RTX 1000 Mobile. It also supports FP16 at 15.36 TFLOPS (2:1 ratio), which is higher than its own FP32 rate, whereas the RTX 1000 Mobile runs FP16 at the same 10.37 TFLOPS as FP32 (1:1 ratio). For workloads that can exploit packed FP16, the Arc B390 has a theoretical edge, but this does not offset its deficits in rasterization, memory, ray tracing, and AI compute.

The RTX 1000 Mobile is the stronger GPU in nearly every measurable category that affects real-world 3D performance. Users prioritizing raw graphics throughput, memory bandwidth, and efficiency should favor the NVIDIA part. The Arc B390 is only competitive in the narrow case of FP16 compute density and in its smaller fabrication node.

Where Each One Wins

The Arc B390 wins on process technology. Its 3 nm node, fabricated by Intel, is two generations ahead of the RTX 1000 Mobile's 5 nm TSMC process. This does not translate into a performance win in the recorded data, but it indicates a more modern manufacturing approach.

The Arc B390 also wins on FP16 compute. Its 15.36 TFLOPS (2:1) exceeds its own FP32 throughput, while the RTX 1000 Mobile's FP16 matches its FP32 at 10.37 TFLOPS. Applications that use FP16 arithmetic, such as certain AI inference workloads or compute shaders, could see a theoretical advantage on the Intel part, provided the software stack supports the packed rate.

The RTX 1000 Mobile wins on every rasterization metric. Pixel rate, texture rate, shader count, TMUs, and ROPs all favor NVIDIA. The 97.20 GPixel/s pixel throughput is a 62% advantage over the Arc B390's 60.00 GPixel/s, which directly impacts fill-rate-bound scenes at high resolutions. The 162.0 GTexel/s texture rate is 35% higher, benefiting texture-heavy rendering.

Memory is a decisive NVIDIA win. The 6 GB GDDR6 configuration with 192.0 GB/s bandwidth is fixed and predictable, whereas the Arc B390's system shared memory has bandwidth that is system dependent. For games and applications that require consistent memory performance, the dedicated VRAM solution is preferable.

Ray tracing and AI acceleration favor NVIDIA. The RTX 1000 Mobile has 20 RT cores and 80 tensor cores, while the Arc B390 lists 12 RT cores and no tensor core count. The tensor cores enable DLSS-style upscaling and other AI features that the Intel part cannot match with dedicated hardware.

Efficiency is a clear NVIDIA win. The 35 W TDP versus 80 W TDP means the RTX 1000 Mobile produces higher theoretical performance while drawing less than half the power. This matters for thermally constrained mobile designs.

The Arc B390 wins on release recency, having launched in January 2026 versus February 2024 for the RTX 1000 Mobile. It also supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, which are identical API levels to the NVIDIA part.

FAQ

Q: How does the Intel Arc B390 compare to the NVIDIA RTX 1000 Mobile Ada Generation in the database's benchmark results?

A: The Arc B390 has one recorded 3DMark Steel Nomad DX12 score of 1482, placing it in the 9th percentile. The RTX 1000 Mobile has no recorded benchmark scores in the database, so no direct comparison is possible. The Arc B390's nearest rivals are the GeForce GT 520MX (1463, 1.3% behind), GeForce 800M (1460, 1.5% behind), GeForce GT 625 OEM (1446, 2.5% behind), and GeForce GT 710 (1443, 2.7% behind).

Q: Which GPU has higher theoretical compute performance?

A: The RTX 1000 Mobile lists 10.37 TFLOPS FP32, which is 35% higher than the Arc B390's 7.680 TFLOPS. In FP16, the Arc B390 reaches 15.36 TFLOPS (2:1), while the RTX 1000 Mobile matches its FP32 rate at 10.37 TFLOPS (1:1).

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

A: The RTX 1000 Mobile has 6 GB of GDDR6 on a 96-bit bus with 192.0 GB/s bandwidth. The Arc B390 uses system shared memory with system dependent bandwidth and no fixed capacity listed.

Q: How do their power requirements differ?

A: The Arc B390 has a TDP of 80 W, while the RTX 1000 Mobile has a TDP of 35 W. Both are IGP form factors with no power connectors.

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.

Q: Which GPU has more ray tracing and AI hardware?

A: The RTX 1000 Mobile has 20 ray tracing cores and 80 tensor cores. The Arc B390 has 12 ray tracing cores and no tensor core count listed in the database.

Architecture Differences

The Arc B390 is built on Intel's 3 nm process at Intel's foundry, using the Panther Lake chip with Xe3-LPG architecture. It belongs to the Arc Graphics-M (Panther Lake) generation. The RTX 1000 Mobile uses TSMC's 5 nm process with the AD107 chip and Ada Lovelace architecture, part of the Ada-MW (x000A) generation. The Intel part is fabricated on a newer node, but the database does not list transistor counts or die sizes for it. The NVIDIA part contains 18,900 million transistors on a 159 mm² die, yielding a transistor density of 118.9M per mm².

The Arc B390 has 1536 shading units, 48 TMUs, 24 ROPs, and 12 ray tracing cores. It does not list tensor cores. The RTX 1000 Mobile has 2560 shading units, 80 TMUs, 48 ROPs, 20 ray tracing cores, and 80 tensor cores. The NVIDIA part has roughly 67% more shading units, 67% more TMUs, and double the ROPs.

Clock behavior differs substantially. The Arc B390 runs at a 300 MHz base and 2500 MHz boost, a wide range that suggests aggressive power management. The RTX 1000 Mobile operates at 1485 MHz base and 2025 MHz boost, with a memory clock of 2000 MHz (16 Gbps effective). The Arc B390's memory clock is listed as system shared, meaning it depends on the host platform.

Memory architecture is fundamentally different. The RTX 1000 Mobile uses dedicated 6 GB GDDR6 with a 96-bit bus and 192.0 GB/s bandwidth. The Arc B390 shares system memory, with bandwidth and capacity dependent on the host system. This affects both performance consistency and the ability to handle large textures.

The bus interface also differs. The Arc B390 uses an IGP interface with no separate bus connection, while the RTX 1000 Mobile uses PCIe 4.0 x8. Both are IGP slot width with no power connectors and portable-device-dependent display outputs.

The RTX 1000 Mobile has a predecessor (Ampere-MW) and successor (Blackwell-MW) listed, while the Arc B390 has neither. Its release date of February 25, 2024 predates the Arc B390's January 26, 2026 release by nearly two years. Both GPUs are marked as active in production status.

The RTX 1000 Mobile's FP16 performance is 1:1 with FP32 at 10.37 TFLOPS, indicating no packed rate acceleration. The Arc B390's FP16 is 2:1 at 15.36 TFLOPS, meaning it can process FP16 at twice its FP32 rate. This architectural choice gives Intel a theoretical advantage in FP16-heavy compute workloads, despite its lower overall shader throughput.

The 80 tensor cores on the RTX 1000 Mobile provide dedicated matrix math acceleration. The Arc B390 has no tensor core count in the database, leaving its AI compute capabilities unspecified. The 20 RT cores on NVIDIA versus 12 on Intel also suggest different ray tracing throughput, though no RT-specific benchmark data exists for either part.