Intel Arc Pro B-Series
B70 vs B60
B70 is the larger compute-oriented SKU: more Xe/XMX/vector resources, more VRAM, higher bandwidth, PCIe x16, and better theoretical perf/W. B60 remains useful for software enablement, CI, and compatibility testing.
FP32 peak
1.87×
B70 over B60
INT8 peak
1.86×
367 vs 197 TOPS
VRAM
32 GB
B70, +8 GB
Memory bandwidth
608
GB/s on B70
Core spec comparison
| Item | Arc Pro B70 | Arc Pro B60 | Meaning |
|---|---|---|---|
| Launch | Q1 2026 | Q2 2025 | B60 appeared earlier |
| Xe-cores | 32 | 20 | B70 1.6× core count |
| Render slices | 8 | 5 | B70 1.6× |
| RT units | 32 | 20 | B70 1.6× |
| XMX engines | 256 | 160 | B70 1.6×; important for matrix/AI kernels |
| Vector engines | 256 | 160 | B70 1.6× |
| Graphics clock | 2280 MHz | 2400 MHz | B60 has higher base graphics clock, but fewer cores |
| Max dynamic clock | 2800 MHz | Not listed | B70 page lists boost/dynamic clock |
| FP32 peak | 22.94 TFLOPS | 12.28 TFLOPS | B70 1.87× |
| INT8 peak | 367 TOPS | 197 TOPS | B70 1.86× |
| Memory | 32 GB GDDR6 | 24 GB GDDR6 | B70 +8 GB |
| Memory bus | 256-bit | 192-bit | B70 1.33× |
| Bandwidth | 608 GB/s | 456 GB/s | B70 1.33× |
| ECC memory | Listed as supported | Not listed on spec page | B70 is clearer for workstation reliability |
| PCIe | PCIe 5.0 x16 | PCIe 5.0 x8 | B70 has wider host link |
| TBP | 230 W | 200 W | B70 uses 15% more power |
| Device ID | 0xE223 | 0xE211 | Useful for detection scripts |
| oneAPI / OpenVINO / IPEX | Yes | Yes | Same main software stack |
| Media engines | 2 | 2 | Same listed count |
| AV1 encode/decode | Yes | Yes | Same listed support |
B70 normalized advantage
Why B70 matters for LLM / XPU work
More VRAM More XMX More bandwidth PCIe x16- 32 GB VRAM gives more room for larger models, KV cache, calibration, and multi-process tests.
- 256 XMX engines make B70 more attractive for INT8 / matrix-heavy workloads.
- 608 GB/s bandwidth helps attention, dequant, activation movement, and memory-bound inference.
- PCIe 5.0 x16 is better for host-device transfers and multi-card host traffic.
Where B60 still fits
CI Bring-up Compatibility- Good for software enablement, CI validation, and basic kernel compatibility coverage.
- Still supports the same main Intel software stack: oneAPI, OpenVINO, and IPEX.
- Less ideal for serious performance characterization or larger model-size coverage.
Perf / watt from listed peak specs
| Metric | Arc Pro B70 | Arc Pro B60 | Comment |
|---|---|---|---|
| FP32 / W | ~99.7 GFLOPS/W | ~61.4 GFLOPS/W | B70 is much stronger on theoretical peak efficiency |
| INT8 / W | ~1.60 TOPS/W | ~0.99 TOPS/W | B70 also wins on INT8 peak efficiency |
| Bandwidth / W | ~2.64 GB/s/W | ~2.28 GB/s/W | B70 still wins despite higher TBP |