AMD Radeon PRO W7900D vs Intel Arc Pro B70 Comparison

Where Each One Wins

The recorded data for these two professional workstation accelerators presents a clear division of labor based on raw compute capacity versus memory bandwidth and interface modernity. The AMD Radeon PRO W7900D dominates in pure computational throughput metrics, while the Intel Arc Pro B70 counters with higher clock speeds, a newer PCIe interface, and a more power-efficient physical design.

The AMD Radeon PRO W7900D delivers substantially higher floating-point performance across both single and double precision workloads. Its FP32 throughput of 52.99 TFLOPS stands as the headline figure, nearly 2.3 times the Intel Arc Pro B70's 22.94 TFLOPS. This gap defines the AMD card's role in simulation, rendering, and compute-heavy professional tasks where raw shader throughput translates directly to reduced processing time.

The Intel Arc Pro B70, by contrast, wins in the domain of clock speed and interface technology. Its boost clock of 2800 MHz exceeds the AMD part's 2156 MHz by a significant margin, and its base clock of 2280 MHz approaches the AMD card's boost frequency. The Intel card also employs PCIe 5.0 x16, offering double the bandwidth of the AMD card's PCIe 4.0 x16 connection, which matters for data transfer between the GPU and host system in I/O-bound workflows.

Memory configuration further separates these cards. The AMD Radeon PRO W7900D carries 48 GB of GDDR6 across a 384-bit bus, yielding 864.0 GB/s of bandwidth. The Intel Arc Pro B70 provides 32 GB on a 256-bit bus with 608.0 GB/s. For large dataset residency, the AMD card's extra 16 GB capacity and 42% bandwidth advantage are decisive. However, the Intel card runs its memory at 2375 MHz (19 Gbps effective) versus the AMD card's 2250 MHz (18 Gbps effective), showing a modest per-module speed advantage.

Physical design separates the two as well. The AMD Radeon PRO W7900D occupies a triple-slot width with two 8-pin power connectors and a suggested 600 W power supply. The Intel Arc Pro B70 fits in a dual-slot design with a single 8-pin connector and a suggested 550 W power supply. The Intel card also runs cooler in terms of power draw at 230 W against the AMD card's 295 W.

Architecture Differences

The two cards come from fundamentally different architectural lineages. The AMD Radeon PRO W7900D uses the Navi 31 chip built on the RDNA 3.0 architecture, codenamed Plum Bonito. It belongs to the Radeon Pro Navi (Navi III Series) generation. The Intel Arc Pro B70 uses the BMG-G31 chip based on the Xe2-HPG architecture and belongs to the Battlemage (Pro Series) generation.

Both cards are fabricated on a 5 nm process at TSMC, but the similarities end there. The AMD chip integrates 57,700 million transistors across a 529 mm² die, yielding a transistor density of 109.1 million transistors per square millimeter. Intel's die size is smaller at 368 mm², though its transistor count is listed as unknown, so a direct density comparison cannot be made from the recorded data.

The compute unit organization differs markedly. The AMD Radeon PRO W7900D contains 6144 shading units, 384 texture mapping units, and 192 render output units. It also carries 96 ray tracing cores. The Intel Arc Pro B70 features 4096 shading units, 256 TMUs, and 128 ROPs, with 32 ray tracing cores. The AMD card thus provides 50% more shading units, 50% more TMUs, 50% more ROPs, and triple the ray tracing cores.

Memory architecture follows the same pattern. AMD uses a 384-bit memory bus width versus Intel's 256-bit, which accounts for the bandwidth difference. The AMD card's 48 GB capacity versus Intel's 32 GB also reflects the wider bus and larger frame buffer allocation.

Clock behavior reveals an interesting architectural philosophy difference. The Intel Arc Pro B70's base clock of 2280 MHz is significantly higher than the AMD card's 1327 MHz base. The boost clocks also differ, with Intel at 2800 MHz versus AMD at 2156 MHz. Despite the lower clocks, AMD achieves far higher throughput through its wider execution resources.

The FP16 capability differs in ratio. The AMD Radeon PRO W7900D delivers 52.99 TFLOPS in FP16, matching its FP32 rate at a 1:1 ratio. The Intel Arc Pro B70 provides 45.88 TFLOPS FP16 against its 22.94 TFLOPS FP32, a 2:1 ratio. This means Intel's card offers relatively stronger half-precision performance given its FP32 baseline, which may benefit certain AI inference workloads.

Head-to-Head Benchmarks

The benchmark database shows no recorded head-to-head benchmark entries for these two cards. Each card holds zero benchmark wins in direct comparisons within the database. The percentile rankings place both cards at the 50th percentile against all GPUs, indicating they occupy similar tiers in the overall performance distribution, though this metric does not capture their relative standing to each other.

The absence of direct benchmark data means the performance relationship must be derived from the architecture specifications. The FP32 compute gap is the most concrete differentiator. The AMD Radeon PRO W7900D delivers 52.99 TFLOPS, which is approximately 2.31 times the Intel Arc Pro B70's 22.94 TFLOPS. In pixel fill rate, the AMD card produces 414.0 GPixel/s against Intel's 358.4 GPixel/s, a 15.5% advantage for AMD. Texture fill rate shows a similar pattern: 827.9 GTexel/s for AMD versus 716.8 GTexel/s for Intel, an advantage of roughly 15.5% as well.

Memory bandwidth provides another measurable comparison. The AMD card's 864.0 GB/s exceeds Intel's 608.0 GB/s by 42.1%. This bandwidth advantage, combined with the 48 GB capacity, gives AMD a clear edge in memory-intensive workloads such as large model inference or high-resolution texture streaming.

Clock speed comparisons run in Intel's favor. Intel's boost clock of 2800 MHz is 29.9% higher than AMD's 2156 MHz boost. Intel's base clock of 2280 MHz exceeds AMD's base of 1327 MHz by 71.8%. These clock advantages do not translate into overall performance wins given the AMD card's wider execution resources, but they do suggest Intel achieves its performance with less power draw per clock.

The memory clock also favors Intel at 2375 MHz versus 2250 MHz for AMD, a 5.6% difference. Effective data rates follow at 19 Gbps versus 18 Gbps. The AMD card compensates with its wider bus, so total bandwidth remains firmly in AMD's favor.

Specification Differences

The two cards differ across nearly every measurable specification category. The AMD Radeon PRO W7900D uses the Navi 31 chip, while the Intel Arc Pro B70 uses the BMG-G31 chip. Architecture differs between RDNA 3.0 and Xe2-HPG, with generations listed as Radeon Pro Navi (Navi III Series) versus Battlemage (Pro Series).

Process node and foundry are identical: both use 5 nm at TSMC. Transistor counts differ, with AMD at 57,700 million and Intel listed as unknown. Die size differs at 529 mm² for AMD and 368 mm² for Intel, making AMD's chip 43.8% larger. Transistor density is recorded only for AMD at 109.1 million per square millimeter.

Clock speeds differ in both base and boost. AMD runs at 1327 MHz base and 2156 MHz boost. Intel runs at 2280 MHz base and 2800 MHz boost. Memory clock differs at 2250 MHz (18 Gbps effective) for AMD versus 2375 MHz (19 Gbps effective) for Intel.

Memory configuration: AMD provides 48 GB GDDR6 on a 384-bit bus with 864.0 GB/s bandwidth. Intel provides 32 GB GDDR6 on a 256-bit bus with 608.0 GB/s bandwidth. Shading units: 6144 for AMD, 4096 for Intel. TMUs: 384 versus 256. ROPs: 192 versus 128. Ray tracing cores: 96 versus 32.

Pixel rate: 414.0 GPixel/s for AMD, 358.4 GPixel/s for Intel. Texture rate: 827.9 GTexel/s for AMD, 716.8 GTexel/s for Intel. FP32 performance: 52.99 TFLOPS for AMD, 22.94 TFLOPS for Intel. FP16 performance: 52.99 TFLOPS for AMD, 45.88 TFLOPS for Intel, with ratios of 1:1 and 2:1 respectively.

Power and physical design: AMD draws 295 W with a triple-slot cooler, two 8-pin connectors, and a 600 W suggested power supply. Intel draws 230 W with a dual-slot cooler, one 8-pin connector, and a 550 W suggested power supply. Dimensions: AMD measures 280 mm by 110 mm by 51 mm. Intel measures 267 mm by 110 mm by 39 mm, making Intel 4.6% shorter and 23.5% thinner.

Bus interface: AMD uses PCIe 4.0 x16, Intel uses PCIe 5.0 x16. Display outputs: AMD offers 3x DisplayPort 2.1 plus 1x mini-DisplayPort 2.1. Intel offers 1x HDMI 2.1a plus 3x DisplayPort 2.1. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Release dates differ: the AMD Radeon PRO W7900D was released on September 24, 2025, while the Intel Arc Pro B70 was released on March 25, 2026. The AMD card lists its predecessor as Radeon Pro Vega. The Intel card lists no predecessor. Launch MSRP exists only for the Intel card at 949 USD.

FAQ

Q: Which card has higher single-precision floating-point performance?

A: The AMD Radeon PRO W7900D delivers 52.99 TFLOPS FP32, which is approximately 2.31 times the Intel Arc Pro B70's 22.94 TFLOPS.

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

A: The AMD Radeon PRO W7900D has 48 GB of GDDR6 memory on a 384-bit bus. The Intel Arc Pro B70 has 32 GB of GDDR6 memory on a 256-bit bus.

Q: What are the memory bandwidth figures for each card?

A: The AMD card achieves 864.0 GB/s bandwidth, while the Intel card achieves 608.0 GB/s. The AMD card provides approximately 42% more memory bandwidth.

Q: Which card has a higher boost clock speed?

A: The Intel Arc Pro B70 has a boost clock of 2800 MHz, which is 29.9% higher than the AMD Radeon PRO W7900D's boost clock of 2156 MHz.

Q: What power supply is suggested for each card?

A: The AMD Radeon PRO W7900D suggests a 600 W power supply and uses two 8-pin connectors. The Intel Arc Pro B70 suggests a 550 W power supply and uses a single 8-pin connector.

Q: Which card uses a newer PCIe interface?

A: The Intel Arc Pro B70 uses PCIe 5.0 x16, while the AMD Radeon PRO W7900D uses PCIe 4.0 x16. The Intel card offers double the host interface bandwidth.

Q: How do the physical dimensions differ?

A: The AMD card measures 280 mm in length, 110 mm in height, and 51 mm in width, occupying a triple-slot width. The Intel card measures 267 mm in length, 110 mm in height, and 39 mm in width, occupying a dual-slot width.