AMD Ryzen Z1 GPU vs Intel Arc Pro B70 Comparison

FAQ

Q: What are the architectural foundations of the AMD Ryzen Z1 GPU and the Intel Arc Pro B70?

A: The AMD Ryzen Z1 GPU uses the RDNA 3.0 architecture on a 4 nm TSMC process, built around the Phoenix chip. The Intel Arc Pro B70 uses the Xe2-HPG architecture on a 5 nm TSMC process, built around the BMG-G31 chip from the Battlemage (Pro Series) generation.

Q: How do the memory subsystems compare between the two GPUs?

A: The AMD Ryzen Z1 GPU has 16 GB of LPDDR5 memory on a 64-bit bus, delivering 51.20 GB/s of bandwidth. The Intel Arc Pro B70 has 32 GB of GDDR6 memory on a 256-bit bus, delivering 608.0 GB/s of bandwidth. The Intel part offers double the capacity and roughly 12 times the bandwidth.

Q: Which GPU has a higher boost clock?

A: The Intel Arc Pro B70 boosts to 2800 MHz, while the AMD Ryzen Z1 GPU boosts to 2500 MHz. The Intel part also has a higher base clock at 2280 MHz versus 1500 MHz for the AMD part.

Q: What is the difference in raw compute throughput?

A: The Intel Arc Pro B70 delivers 22.94 TFLOPS of FP32 performance and 45.88 TFLOPS of FP16 performance (2:1). The AMD Ryzen Z1 GPU delivers 2.560 TFLOPS of FP32 and 5.120 TFLOPS of FP16 (2:1). The Intel GPU has roughly 9 times the FP32 throughput.

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: What are the physical dimensions and power requirements?

A: The AMD Ryzen Z1 GPU measures 280 mm in length, 111 mm in height, and 21 mm in width, with a 30 W TDP and no power connectors. The Intel Arc Pro B70 measures 267 mm in length, 110 mm in height, and 39 mm in width, with a 230 W TDP, a single 8-pin power connector, and a suggested PSU of 550 W.

Architecture Differences

The AMD Ryzen Z1 GPU and the Intel Arc Pro B70 represent two fundamentally different design philosophies. The AMD part is built on RDNA 3.0, a graphics architecture designed for efficiency in compact, low-power environments. It uses the Phoenix chip, fabricated on TSMC's 4 nm process, with 25,390 million transistors on a 178 mm² die. That works out to a transistor density of 142.6M per mm². The Intel Arc Pro B70, by contrast, uses the Xe2-HPG architecture from the Battlemage (Pro Series) generation, built on TSMC's 5 nm process. Its BMG-G31 chip has a die size of 368 mm², though the transistor count is listed as unknown in the database.

The compute resources differ sharply. The AMD Ryzen Z1 GPU has 256 shading units, 16 texture mapping units, 8 ROPs, and 4 ray tracing cores. The Intel Arc Pro B70 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. In every category, the Intel part has 16 times the shading units, 16 times the TMUs, 16 times the ROPs, and 8 times the ray tracing cores. Neither GPU lists tensor cores in the database.

Memory architecture also diverges. The AMD part uses 16 GB of LPDDR5 on a 64-bit bus with 51.20 GB/s of bandwidth. The Intel part uses 32 GB of GDDR6 on a 256-bit bus with 608.0 GB/s of bandwidth. The Intel GPU also features a PCIe 5.0 x16 bus interface, while the AMD part has no bus interface listed.

Display output capabilities differ as well. The Intel Arc Pro B70 has one HDMI 2.1a port and three DisplayPort 2.1 outputs. The AMD Ryzen Z1 GPU lists no display outputs at all, indicating it is not intended for direct monitor connection in its reference configuration.

Power characteristics highlight the positioning gap. The AMD Ryzen Z1 GPU has a 30 W TDP and requires no power connectors. The Intel Arc Pro B70 has a 230 W TDP, uses a single 8-pin power connector, and suggests a 550 W PSU. The physical footprint also differs: the AMD card is longer at 280 mm but thinner at 21 mm, while the Intel card is shorter at 267 mm but much thicker at 39 mm, consistent with its dual-slot cooler.

Head-to-Head Benchmarks

The database lists no head-to-head benchmark results for these two GPUs, and neither has recorded benchmark scores or nearest rivals. The comparison therefore relies on the specification data, which shows a decisive performance gap in the Intel part's favor.

The most significant difference is in raw compute throughput. The Intel Arc Pro B70 delivers 22.94 TFLOPS of FP32 performance, which is approximately 9 times the 2.560 TFLOPS of the AMD Ryzen Z1 GPU. In FP16, the Intel part delivers 45.88 TFLOPS versus 5.120 TFLOPS, again roughly a 9 times advantage. These figures indicate that the Intel GPU is in a completely different performance class for compute-heavy workloads.

Pixel and texture throughput follow the same pattern. The Intel Arc Pro B70 has a pixel rate of 358.4 GPixel/s and a texture rate of 716.8 GTexel/s. The AMD Ryzen Z1 GPU has a pixel rate of 20.00 GPixel/s and a texture rate of 40.00 GTexel/s. The Intel part is about 18 times faster in pixel fill and about 18 times faster in texture fill.

Memory bandwidth is another area of massive divergence. The Intel Arc Pro B70's 608.0 GB/s bandwidth is roughly 12 times the AMD Ryzen Z1 GPU's 51.20 GB/s. The Intel part also has double the memory capacity at 32 GB versus 16 GB, and uses faster GDDR6 memory at 19 Gbps effective, compared to the AMD part's LPDDR5 at 6.4 Gbps effective.

Clock speeds favor Intel as well. The Intel Arc Pro B70 has a base clock of 2280 MHz and a boost clock of 2800 MHz. The AMD Ryzen Z1 GPU has a base clock of 1500 MHz and a boost clock of 2500 MHz. While clock speed alone does not determine performance, the combination of higher clocks, far more shading units, and wider memory bus gives the Intel part an overwhelming specification advantage.

The AMD Ryzen Z1 GPU's advantages are limited to efficiency and physical size. Its 30 W TDP is dramatically lower than the Intel part's 230 W TDP. It is also thinner at 21 mm versus 39 mm, and it uses no power connectors. These factors make it suitable for constrained environments, but they do not translate into competitive compute performance.

The Verdict

The data indicates that the Intel Arc Pro B70 is the stronger GPU by a wide margin across every compute and memory metric recorded in the database. Its FP32 throughput of 22.94 TFLOPS is about 9 times the AMD Ryzen Z1 GPU's 2.560 TFLOPS. Its memory bandwidth of 608.0 GB/s is about 12 times higher. Its pixel rate of 358.4 GPixel/s is about 18 times higher. Its texture rate of 716.8 GTexel/s is about 18 times higher. Its shading unit count of 4096 is 16 times the AMD part's 256. Its ray tracing core count of 32 is 8 times the AMD part's 4.

The Intel part also has double the memory capacity, a wider memory bus, a faster memory type, a faster boost clock, and a PCIe 5.0 x16 interface. It supports display outputs with one HDMI 2.1a and three DisplayPort 2.1 connections, while the AMD part lists no display outputs. For any workload that depends on raw graphics or compute performance, the Intel Arc Pro B70 is the clear choice.

The AMD Ryzen Z1 GPU is not without merit, but its strengths lie elsewhere. Its 30 W TDP makes it suitable for low-power or thermally constrained designs. Its 21 mm width and lack of power connectors allow for compact integration. Its 4 nm process and 142.6M transistors per mm² density reflect a design focused on efficiency rather than peak performance. However, the recorded data shows no benchmark results, no nearest rivals, and no measured scores for either GPU, so the comparison rests entirely on specifications.

For users who need maximum compute throughput, memory bandwidth, and display connectivity, the Intel Arc Pro B70 is the only rational pick from the data. Its launch MSRP is 949 USD. For users who need minimal power draw and a slim physical profile, the AMD Ryzen Z1 GPU has a launch MSRP of 599 USD and offers a far lower power envelope. The choice depends entirely on whether the priority is performance or efficiency, and the specification data makes that trade-off unambiguous.

Specification Differences

The two GPUs differ in nearly every recorded specification field.

Chip and process: The AMD Ryzen Z1 GPU uses the Phoenix chip with RDNA 3.0 architecture on a 4 nm process. The Intel Arc Pro B70 uses the BMG-G31 chip with Xe2-HPG architecture on a 5 nm process. Both are fabricated by TSMC.

Transistors and die size: The AMD part has 25,390 million transistors on a 178 mm² die, with a density of 142.6M per mm². The Intel part has an unknown transistor count on a 368 mm² die, with no density figure recorded.

Clocks: The AMD part has a 1500 MHz base clock and a 2500 MHz boost clock. The Intel part has a 2280 MHz base clock and a 2800 MHz boost clock. Memory clocks are 6.4 Gbps effective for the AMD part and 19 Gbps effective for the Intel part.

Memory: The AMD part has 16 GB of LPDDR5 on a 64-bit bus with 51.20 GB/s bandwidth. The Intel part has 32 GB of GDDR6 on a 256-bit bus with 608.0 GB/s bandwidth.

Compute units: The AMD part has 256 shading units, 16 TMUs, 8 ROPs, and 4 ray tracing cores. The Intel part has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. Neither lists tensor cores.

Rates and throughput: The AMD part has a 20.00 GPixel/s pixel rate, 40.00 GTexel/s texture rate, 2.560 TFLOPS FP32, and 5.120 TFLOPS FP16. The Intel part has a 358.4 GPixel/s pixel rate, 716.8 GTexel/s texture rate, 22.94 TFLOPS FP32, and 45.88 TFLOPS FP16.

Power: The AMD part has a 30 W TDP and no power connectors. The Intel part has a 230 W TDP, one 8-pin power connector, and a suggested PSU of 550 W.

Physical: The AMD part is 280 mm long, 111 mm tall, and 21 mm wide. The Intel part is 267 mm long, 110 mm tall, and 39 mm wide, with a dual-slot cooler.

Connectivity: The AMD part lists no bus interface and no display outputs. The Intel part uses PCIe 5.0 x16 and has one HDMI 2.1a and three DisplayPort 2.1 outputs.

APIs: Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Release and status: The AMD part was released on 2023-09-17 and is listed as Active in production. The Intel part has a release date of 2026-03-25 with no production status recorded. Neither has a predecessor or successor listed.

Benchmarks: Both GPUs have zero recorded benchmark scores, zero wins in head-to-head comparisons, and no nearest rivals in the database. Both are at the 50th percentile against all GPUs, which reflects the absence of measured data rather than comparable performance.