Intel Arc Pro B65 vs Intel Arc Pro B70 Comparison

FAQ

Q: What are the core specifications of the Intel Arc Pro B65 and B70?

A: The B65 uses the BMG-G21 chip with 2560 shading units, 160 TMUs, 80 ROPs, and 20 RT cores. The B70 uses the larger BMG-G31 chip with 4096 shading units, 256 TMUs, 128 ROPs, and 32 RT cores.

Q: How do the memory configurations compare between the two cards?

A: Both cards feature 32 GB of GDDR6 memory on a 256-bit bus, with identical memory clocks of 2375 MHz (19 Gbps effective) and matching bandwidth of 608.0 GB/s.

Q: What are the clock speed differences?

A: The B65 has a base and boost clock of 2400 MHz. The B70 has a lower base clock of 2280 MHz but a significantly higher boost clock of 2800 MHz.

Q: Do both cards support the same graphics APIs?

A: Yes, both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What are the display output configurations?

A: The B65 provides 4x DisplayPort 2.1 outputs. The B70 provides 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs.

Q: What are the physical dimensions of each card?

A: The B70 measures 267 mm in length, 110 mm in height, and 39 mm in width. The B65 has no recorded dimensions in the database.

Architecture Differences

The Intel Arc Pro B65 and B70 share the Xe2-HPG architecture and belong to the Battlemage (Pro Series) generation, but they are built on different physical chips. The B65 uses the BMG-G21 die, while the B70 uses the BMG-G31 die. Both are fabricated on TSMC's 5 nm process, but the die sizes differ substantially: the B65 measures 272 mm² with 19,600 million transistors, resulting in a transistor density of 72.1M per mm². The B70's die size is 368 mm², though its transistor count is not recorded in the database.

The larger die on the B70 enables a fundamental scaling of compute resources. The B70 doubles the ROP count from 80 to 128, increases TMUs from 160 to 256, and expands shading units from 2560 to 4096. RT cores scale from 20 on the B65 to 32 on the B70. This architectural scaling directly translates into higher theoretical throughput: the B70's pixel rate reaches 358.4 GPixel/s versus 192.0 GPixel/s on the B65, and texture rate climbs from 384.0 GTexel/s to 716.8 GTexel/s.

Clock behavior also differs between the two chips. The B65 runs at a flat 2400 MHz for both base and boost. The B70 operates at a lower base clock of 2280 MHz but boosts to 2800 MHz, a 520 MHz delta. This suggests the B70's larger die can sustain higher peak frequencies under load, while the B65's uniform clock suggests a more conservative power envelope.

Power delivery requirements remain similar: both cards use a dual-slot cooler and a single 8-pin power connector, with a suggested PSU of 550 W. However, the B70's TDP is recorded at 230 W versus 200 W for the B65. The B70 also has recorded physical dimensions (267 mm length, 110 mm height, 39 mm width), while the B65's dimensions are not listed.

Head-to-Head Benchmarks

The database does not contain direct head-to-head benchmark runs between the Intel Arc Pro B65 and B70. Instead, the analysis relies on the recorded theoretical specifications and the percentile data. Both cards hold a percentile rank of 50 against all GPUs in the database, and neither has an average benchmark score or nearest rivals recorded. This means the following comparison is based on the compute capabilities encoded in the specification sheets.

The most significant advantage for the B70 lies in raw compute throughput. The FP32 performance of the B70 is 22.94 TFLOPS, which is 86.7% higher than the B65's 12.29 TFLOPS. This gap is consistent across precision formats: the B70 reaches 45.88 TFLOPS FP16, while the B65 delivers 24.58 TFLOPS FP16. Both cards implement FP16 at a 2:1 ratio relative to FP32.

Pixel and texture throughput show similar scaling. The B70's pixel rate of 358.4 GPixel/s is 86.7% above the B65's 192.0 GPixel/s. The texture rate difference is even larger in absolute terms: 716.8 GTexel/s versus 384.0 GTexel/s, a gain of 86.7% as well. These percentage differences align exactly with the shading unit scaling from 2560 to 4096, confirming that the B70's advantage is purely a function of wider execution resources.

The B70's boost clock of 2800 MHz also provides a frequency advantage over the B65's 2400 MHz, which further widens the gap in scenarios where the boost clock can be sustained. The B65's higher base clock of 2400 MHz versus 2280 MHz is unlikely to compensate, as the B70's boost ceiling is substantially higher.

Memory performance is identical, so neither card gains an edge in bandwidth-bound workloads. Both provide 608.0 GB/s over a 256-bit bus with the same memory clock. The 32 GB capacity on both cards means memory-intensive professional workloads will not differentiate the two based on capacity alone.

Specification Differences

| Specification | Intel Arc Pro B65 | Intel Arc Pro B70 |

|----------------|-------------------|-------------------|

| Chip | BMG-G21 | BMG-G31 |

| Die Size | 272 mm² | 368 mm² |

| Transistors | 19,600 million | Unknown |

| Transistor Density | 72.1M / mm² | Not recorded |

| Base Clock | 2400 MHz | 2280 MHz |

| Boost Clock | 2400 MHz | 2800 MHz |

| Shading Units | 2560 | 4096 |

| TMUs | 160 | 256 |

| ROPs | 80 | 128 |

| RT Cores | 20 | 32 |

| Pixel Rate | 192.0 GPixel/s | 358.4 GPixel/s |

| Texture Rate | 384.0 GTexel/s | 716.8 GTexel/s |

| FP32 | 12.29 TFLOPS | 22.94 TFLOPS |

| FP16 | 24.58 TFLOPS (2:1) | 45.88 TFLOPS (2:1) |

| TDP | 200 W | 230 W |

| Display Outputs | 4x DisplayPort 2.1 | 1x HDMI 2.1a, 3x DisplayPort 2.1 |

| Dimensions | Not recorded | 267 mm x 110 mm x 39 mm |

| Release Date | 2026-03-31 | 2026-03-25 |

| Production Status | Active | Not recorded |

| Launch MSRP | Not recorded | 949 USD |

The B70's launch MSRP of 949 USD is recorded once here for reference. Both cards share the same memory size, type, bus width, bandwidth, memory clock, power connector configuration, suggested PSU rating, bus interface (PCIe 5.0 x16), slot width, and API support. The B70 was released on 2026-03-25, six days before the B65 on 2026-03-31. The B65 is marked as Active in production status, while the B70's status is not recorded.

Where Each One Wins

The Intel Arc Pro B70 is the clear compute leader across every measured throughput metric. Its FP32 performance of 22.94 TFLOPS places it 86.7% ahead of the B65, and the same relative advantage applies to FP16, pixel fill, and texture fill. For workloads that are heavily parallel and can utilize the full shading unit array, such as rendering, simulation, and compute-heavy professional applications, the B70 delivers decisively higher throughput. The additional 12 RT cores also give it a meaningful advantage in ray-traced workloads, assuming software scales with RT core count.

The B70's higher boost clock of 2800 MHz provides headroom for bursty workloads that respond well to frequency scaling. The lower base clock of 2280 MHz is unlikely to matter in practice, as most modern workloads will push the card toward its boost ceiling. The B70's larger die size of 368 mm², while not directly a performance metric, indicates a physically more complex chip capable of housing the expanded execution resources.

The Intel Arc Pro B65 wins in the power efficiency comparison. Its TDP of 200 W is 30 W lower than the B70's 230 W, while delivering roughly 53.6% of the FP32 throughput (12.29 TFLOPS versus 22.94 TFLOPS). This means the B65 offers more compute per watt in absolute terms, though the B70 still delivers more total compute. For systems with tighter power budgets or thermal constraints, the B65's lower power draw is a measurable advantage.

The B65 also offers a simpler display configuration with four DisplayPort 2.1 outputs, which may suit multi-monitor setups that rely exclusively on DisplayPort. The B70 mixes one HDMI 2.1a port with three DisplayPort 2.1 outputs, which could be preferable for installations requiring a direct HDMI connection without adapters. The B70's recorded physical dimensions indicate a card that is 267 mm long, 110 mm tall, and 39 mm wide, useful for chassis compatibility checks, while the B65's dimensions are absent from the database.

Both cards are equally matched in memory capacity and bandwidth, so the choice between them does not hinge on memory-bound workloads. The identical 32 GB GDDR6 configuration with 608.0 GB/s bandwidth means neither card will run out of memory capacity before the other in typical professional scenarios. The B70's release date of 2026-03-25 precedes the B65's 2026-03-31, making the B70 the earlier availability option by six days.

For users prioritizing maximum compute throughput and ray tracing capability, the B70 is the superior choice, backed by its 86.7% advantage in all major throughput metrics. For users with power or thermal constraints, or those who prefer a uniform quad-DisplayPort output layout, the B65 provides a lower-power alternative without sacrificing memory capacity or bandwidth.