Intel Arc B370 vs NVIDIA GeForce RTX 5070 Mobile 12 GB Comparison

Head-to-Head Benchmarks

The recorded data contains only a single benchmark result for the Intel Arc B370: a 3DMark Steel Nomad DX12 score of 1184. The NVIDIA GeForce RTX 5070 Mobile 12 GB has no benchmark entries in the database, meaning direct head-to-head comparisons cannot be made from measured scores. The Arc B370 sits at the 5th percentile of all GPUs, while the RTX 5070 Mobile sits at the 50th percentile, which is a substantial gap in overall standing.

The Arc B370's nearest rivals in the database are all older discrete parts. It trails the ATI Mobility Radeon HD 5570 by 0.2%, the ATI Radeon HD 5770 by 0.5%, and the AMD Radeon HD 7650M by 0.7%. It leads the AMD FirePro M2000 by 1.4%. These deltas are small, indicating the Arc B370 competes with a performance tier roughly a decade old in this specific DX12 workload.

Since the RTX 5070 Mobile has no recorded benchmarks, its average benchmark score is listed as 0, and it has no nearest rivals. The data simply does not support a numeric comparison between these two parts. What can be stated is that the Arc B370's single score of 1184 is far below what would be expected for a GPU at the 50th percentile, though no exact percentile-to-score mapping is provided for the RTX 5070 Mobile.

The wins count is 0 for both parts in the head-to-head benchmarks field, which is empty. This reinforces that no direct test data exists for these two products against each other. The analysis must therefore rely on architectural specifications and the limited benchmark context available for the Intel part.

Where Each One Wins

The Intel Arc B370's only measured win is its existence in the benchmark database with a score of 1184. It performs within 1% of several older ATI and AMD parts, which suggests it delivers a level of performance comparable to those legacy mobile and desktop GPUs in the Steel Nomad DX12 test. Its 5th percentile ranking places it near the bottom of the database's GPU population.

The NVIDIA GeForce RTX 5070 Mobile 12 GB has no benchmark wins recorded because no tests are logged. Its 50th percentile ranking, however, indicates it sits at the median of all GPUs in the database, which is a far stronger position than the Arc B370's 5th percentile. The RTX 5070 Mobile also has a 12 GB GDDR7 memory configuration, while the Arc B370 uses system shared memory, which affects where each part can be used effectively.

For workloads that depend on dedicated video memory capacity, the RTX 5070 Mobile's 12 GB is a clear advantage. The Arc B370's shared memory approach means its available memory size, type, bus width, and bandwidth are all listed as system dependent, so performance in memory-heavy tasks will vary with the host system. The RTX 5070 Mobile's fixed 576.0 GB/s bandwidth and 192-bit bus provide predictable memory behavior.

The Arc B370 might be preferable in scenarios where low power draw is critical, as its TDP is 25 W versus the RTX 5070 Mobile's 50 W. But without benchmark data for the NVIDIA part, the use-case split must be inferred from specifications alone.

Architecture Differences

The Intel Arc B370 uses the Xe3-LPG architecture on a 3 nm process node, fabricated by Intel. It is part of the Arc Graphics-M generation with the Panther Lake chip. The NVIDIA GeForce RTX 5070 Mobile 12 GB uses the Blackwell 2.0 architecture on a 5 nm process node, fabricated by TSMC, with the GB206 chip. These are fundamentally different design approaches: Intel opts for a very small integrated-class GPU, while NVIDIA builds a larger discrete-class mobile part.

The Arc B370 has 1280 shading units, 40 texture mapping units, 20 raster output units, and 10 ray tracing cores. It has no tensor cores listed. The RTX 5070 Mobile has 4608 shading units, 144 TMUs, 48 ROPs, 36 ray tracing cores, and 144 tensor cores. The NVIDIA part has more than three times the shader count, 3.6 times the TMUs, 2.4 times the ROPs, and 3.6 times the RT cores. The presence of 144 tensor cores on the RTX 5070 Mobile is a significant architectural difference, as the Arc B370 has none listed.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX 5070 Mobile uses a PCIe 5.0 x16 bus interface, while the Arc B370 uses an integrated graphics processor interface with no separate bus connection. The Intel part's memory is system shared, whereas the NVIDIA part uses dedicated GDDR7.

The transistor count and die size are only provided for the RTX 5070 Mobile: 21,900 million transistors on a 181 mm² die, with a density of 121.0M per mm². The Arc B370's transistor count, die size, and density are listed as unknown. The RTX 5070 Mobile's FP32 throughput is 13.13 TFLOPS, more than double the Arc B370's 6.144 TFLOPS. The FP16 rates differ in ratio: the Arc B370 delivers 12.29 TFLOPS (2:1), while the RTX 5070 Mobile delivers 13.13 TFLOPS (1:1), meaning the NVIDIA part does not gain a separate FP16 boost.

Specification Differences

The clock speeds diverge sharply. The Arc B370 has a base clock of 300 MHz and a boost clock of 2400 MHz. The RTX 5070 Mobile has a base clock of 907 MHz and a boost clock of 1425 MHz. The Intel part boosts much higher, but the NVIDIA part starts from a higher base. The memory clocks also differ: the Arc B370 lists system shared memory with no fixed clock, while the RTX 5070 Mobile runs at 1500 MHz with 24 Gbps effective speed.

Memory capacity is a major differentiator. The Arc B370 has no dedicated memory, relying on system shared memory whose size, type, bus width, and bandwidth are all system dependent. The RTX 5070 Mobile has 12 GB of GDDR7 on a 192-bit bus with 576.0 GB/s of bandwidth. The pixel rate for the Arc B370 is 48.00 GPixel/s versus 68.40 GPixel/s for the RTX 5070 Mobile. The texture rate is 96.00 GTexel/s versus 205.2 GTexel/s.

The TDP is 25 W for the Arc B370 and 50 W for the RTX 5070 Mobile, both listed as IGP slot width with no power connectors. The bus interface differs: IGP for Intel, PCIe 5.0 x16 for NVIDIA. Display outputs are portable device dependent for both. The production status for both is Active. The release date for the Arc B370 is 2026-01-26, while the RTX 5070 Mobile is dated 2026-05-31. The RTX 5070 Mobile lists a predecessor, GeForce 40 Mobile, while the Arc B370 has no predecessor listed.

FAQ

Q: What is the only benchmark score available for these two GPUs?

A: The Intel Arc B370 has a single recorded 3DMark Steel Nomad DX12 score of 1184. The NVIDIA GeForce RTX 5070 Mobile 12 GB has no benchmark scores in the database.

Q: How does the Arc B370 compare to its nearest rivals in the database?

A: The Arc B370 trails the ATI Mobility Radeon HD 5570 by 0.2%, the ATI Radeon HD 5770 by 0.5%, and the AMD Radeon HD 7650M by 0.7%. It leads the AMD FirePro M2000 by 1.4%.

Q: What are the memory configurations of each GPU?

A: The Arc B370 uses system shared memory with size, type, bus width, and bandwidth all listed as system dependent. The RTX 5070 Mobile has 12 GB of GDDR7 on a 192-bit bus with 576.0 GB/s bandwidth.

Q: Which GPU has more shading units and ray tracing cores?

A: The RTX 5070 Mobile has 4608 shading units and 36 ray tracing cores. The Arc B370 has 1280 shading units and 10 ray tracing cores.

Q: What are the TDP values for both parts?

A: The Arc B370 has a TDP of 25 W, and the RTX 5070 Mobile has a TDP of 50 W. Both are listed as IGP slot width 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.

The Verdict

The data shows a clear hierarchical separation between these two GPUs. The Intel Arc B370, with its 5th percentile ranking and a score of 1184 in the only recorded benchmark, sits near the bottom of the database's GPU population. Its nearest rivals are all legacy ATI and AMD parts from a much older era. The NVIDIA GeForce RTX 5070 Mobile 12 GB, at the 50th percentile, sits at the median of all GPUs, but no benchmark scores are recorded for it, so its performance cannot be quantified from direct measurements.

From a specification standpoint, the RTX 5070 Mobile dominates in nearly every measurable category: more than triple the shading units, 3.6 times the TMUs, 2.4 times the ROPs, 144 tensor cores versus none, 12 GB of dedicated GDDR7 memory versus system shared, and more than double the FP32 throughput at 13.13 TFLOPS versus 6.144 TFLOPS. Its pixel rate of 68.40 GPixel/s and texture rate of 205.2 GTexel/s both exceed the Arc B370's corresponding rates.

The Arc B370's advantages are its lower TDP of 25 W versus 50 W, a higher boost clock of 2400 MHz versus 1425 MHz, and a smaller process node at 3 nm versus 5 nm. These traits suit a low-power integrated solution. The RTX 5070 Mobile requires twice the power budget but delivers a far more capable feature set, including dedicated ray tracing cores and tensor cores.

Who should pick which comes down to the recorded data. For users whose workloads align with the RTX 5070 Mobile's 50th percentile standing and its dedicated 12 GB memory pool, the NVIDIA part is the only choice with a median-level position. The Arc B370, with its 5th percentile ranking and performance within 1% of decade-old parts, serves a much more limited role. The database records no head-to-head benchmarks, no wins for either side, and no rival data for the RTX 5070 Mobile. The only definitive conclusion is that the Arc B370's measured performance is low in the overall distribution, while the RTX 5070 Mobile's specification sheet indicates a substantially more powerful part.