AMD Ryzen Z1 Extreme GPU vs Intel Arc B390 Comparison

Head-to-Head Benchmarks

The recorded data presents an unusual comparison. The AMD Ryzen Z1 Extreme GPU has no individual benchmark entries in the database, while the Intel Arc B390 has one recorded result: a 3DMark Steel Nomad DX12 score of 1482. Without a matching head-to-head benchmark suite, the direct performance delta cannot be quantified from the database. The Intel part's score places it in the 9th percentile of all GPUs, which indicates that its measured performance in that specific test ranks relatively low against the broader field of recorded hardware. By contrast, the AMD Ryzen Z1 Extreme GPU sits in the 50th percentile, though this percentile is derived from aggregate positioning rather than a recorded benchmark score.

The Intel Arc B390's nearest rivals in the database are older NVIDIA discrete parts. It finishes 1.3% ahead of the GeForce GT 520MX (average score 1463), 1.5% ahead of the GeForce 800M (average score 1460), 2.5% ahead of the GeForce GT 625 OEM (average score 1446), and 2.7% ahead of the GeForce GT 710 (average score 1443). These deltas are narrow, with the largest margin being less than three percentage points. The data suggests that in the Steel Nomad DX12 workload, the Arc B390 performs at a level comparable to entry-level mobile and OEM graphics solutions from a much earlier era, rather than competing with modern discrete graphics hardware.

The AMD Ryzen Z1 Extreme GPU cannot be placed in a direct benchmark comparison because the database contains no recorded test scores for it. Its 50th percentile rank implies that, based on the database's classification system, it sits near the middle of all GPUs. However, the absence of a concrete score means that any statement about its relative performance against the Arc B390 would be speculative. The only measurable conclusion from the head-to-head section is that Intel's part has a recorded 3DMark Steel Nomad DX12 score of 1482, and that its nearest rival deltas are all within 2.7%.

Architecture Differences

The two GPUs come from different manufacturers and use distinct underlying designs. The AMD Ryzen Z1 Extreme GPU uses the Phoenix chip with RDNA 3.0 architecture, fabricated on a 4 nm process at TSMC. The Intel Arc B390 uses the Panther Lake chip with Xe3-LPG architecture, fabricated on a 3 nm process at Intel. This represents a process node advantage for Intel, though the database does not provide transistor counts or die sizes for the Intel part. AMD's chip contains 25,390 million transistors on a 178 mm² die, giving a transistor density of 142.6M per mm². Intel's transistor count and die size are listed as unknown, so no density comparison is possible.

The AMD part is a 30 W component with no power connectors, while the Intel part is rated at 80 W. Both have 12 ray tracing cores, but the shading unit counts differ significantly: AMD uses 768 shading units, while Intel uses 1536 shading units. Texture mapping units are identical at 48 each, but render output units differ, with AMD at 32 and Intel at 24. The AMD GPU has dedicated LPDDR5 memory totaling 16 GB on a 64-bit bus, delivering 51.20 GB/s of bandwidth. The Intel GPU uses System Shared memory for capacity, type, bus width, and bandwidth, with bandwidth listed as System Dependent. This is a fundamental architectural split: AMD integrates dedicated memory on a narrow bus, while Intel relies on shared system memory.

Clock behavior also differs. AMD runs at an 800 MHz base clock and a 2700 MHz boost clock, with memory at 800 MHz or 6.4 Gbps effective. Intel runs at a 300 MHz base clock and a 2500 MHz boost clock, with memory speed listed as System Shared. The AMD pixel rate is 86.40 GPixel/s versus Intel's 60.00 GPixel/s, and the AMD texture rate is 129.6 GTexel/s versus Intel's 120.0 GTexel/s. FP32 compute output favors AMD at 8.294 TFLOPS versus Intel's 7.680 TFLOPS, and FP16 output favors AMD at 16.59 TFLOPS versus Intel's 15.36 TFLOPS, both at a 2:1 ratio. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical.

The AMD GPU is a discrete-style component with a 280 mm length, 111 mm height, and 21 mm width, plus a single USB Type-C display output. The Intel GPU is an integrated graphics processor (IGP) with no dimensions listed, and its display outputs are Portable Device Dependent. The AMD part has a launch MSRP of 699 USD, while the Intel part has no recorded launch MSRP. Release dates differ substantially: AMD's part launched on 2023-06-12, and Intel's part is dated 2026-01-26.

FAQ

Q: Which GPU has a higher recorded benchmark score?

A: Only the Intel Arc B390 has a recorded benchmark score in the database: 1482 in 3DMark Steel Nomad DX12. The AMD Ryzen Z1 Extreme GPU has no recorded benchmark scores.

Q: How does the Intel Arc B390 compare to its nearest rivals?

A: The Arc B390 is 1.3% ahead of the GeForce GT 520MX (1463), 1.5% ahead of the GeForce 800M (1460), 2.5% ahead of the GeForce GT 625 OEM (1446), and 2.7% ahead of the GeForce GT 710 (1443).

Q: What process nodes do the two GPUs use?

A: The AMD Ryzen Z1 Extreme GPU uses a 4 nm process at TSMC. The Intel Arc B390 uses a 3 nm process at Intel.

Q: Do the two GPUs have the same ray tracing capabilities?

A: Yes, both are listed with 12 ray tracing cores.

Q: How do the shading unit counts differ?

A: The AMD Ryzen Z1 Extreme GPU has 768 shading units. The Intel Arc B390 has 1536 shading units, which is double the AMD count.

Q: What type of memory does each GPU use?

A: The AMD Ryzen Z1 Extreme GPU uses 16 GB of LPDDR5 on a 64-bit bus with 51.20 GB/s bandwidth. The Intel Arc B390 uses System Shared memory with System Dependent bandwidth.

Specification Differences

| Specification | AMD Ryzen Z1 Extreme GPU | Intel Arc B390 |

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

| Architecture | RDNA 3.0 | Xe3-LPG |

| Process Node | 4 nm | 3 nm |

| Foundry | TSMC | Intel |

| Transistors | 25,390 million | Unknown |

| Die Size | 178 mm² | Unknown |

| Transistor Density | 142.6M / mm² | Null |

| Base Clock | 800 MHz | 300 MHz |

| Boost Clock | 2700 MHz | 2500 MHz |

| Memory Size | 16 GB | System Shared |

| Memory Type | LPDDR5 | System Shared |

| Memory Bus Width | 64 bit | System Shared |

| Memory Bandwidth | 51.20 GB/s | System Dependent |

| Shading Units | 768 | 1536 |

| TMUs | 48 | 48 |

| ROPs | 32 | 24 |

| Pixel Rate | 86.40 GPixel/s | 60.00 GPixel/s |

| Texture Rate | 129.6 GTexel/s | 120.0 GTexel/s |

| FP32 | 8.294 TFLOPS | 7.680 TFLOPS |

| FP16 | 16.59 TFLOPS (2:1) | 15.36 TFLOPS (2:1) |

| TDP | 30 W | 80 W |

| Slot Width | Null | IGP |

| Bus Interface | Null | IGP |

| Display Outputs | 1x USB Type-C | Portable Device Dependent |

| Dimensions | 280 mm x 111 mm x 21 mm | Null |

| Release Date | 2023-06-12 | 2026-01-26 |

| Launch MSRP | 699 USD | Null |

The identical fields between the two parts include TMU count (48), ray tracing cores (12), DirectX version (12 Ultimate 12_2), OpenGL version (4.6), Vulkan version (1.4), power connectors (None), and production status (Active).

Where Each One Wins

The AMD Ryzen Z1 Extreme GPU wins on raw compute metrics. Its FP32 output of 8.294 TFLOPS exceeds Intel's 7.680 TFLOPS, and its FP16 output of 16.59 TFLOPS exceeds Intel's 15.36 TFLOPS. It also wins on pixel rate (86.40 GPixel/s versus 60.00 GPixel/s) and texture rate (129.6 GTexel/s versus 120.0 GTexel/s). The AMD part has more render output units (32 versus 24) and dedicated memory with a defined bandwidth of 51.20 GB/s. Its power draw is lower at 30 W versus 80 W, and it has a higher boost clock at 2700 MHz versus 2500 MHz. The AMD part also has a defined physical footprint and a single USB Type-C display output, making it a self-contained unit for integration into a device.

The Intel Arc B390 wins on shading unit count, with 1536 units versus AMD's 768. This suggests a wider shader array, even though its FP32 output is lower. The Intel part also wins on process node, using 3 nm versus AMD's 4 nm, and it is fabricated at Intel rather than TSMC. Its lower base clock of 300 MHz versus 800 MHz indicates a different power management profile, and its IGP classification means it is designed for integration directly into a processor rather than as a separate board. The Intel part has a recorded benchmark score of 1482 in 3DMark Steel Nomad DX12, which places it in the 9th percentile, while AMD has no recorded score.

In terms of use cases, the AMD Ryzen Z1 Extreme GPU appears suited to scenarios where compute throughput per watt matters. Its 30 W TDP, higher FP32 and FP16 rates, and dedicated 16 GB LPDDR5 memory with 51.20 GB/s bandwidth make it a coherent package for a portable or compact device. The Intel Arc B390, by contrast, is an integrated GPU with system-shared memory, so it is intended for platforms where memory is pooled rather than dedicated. Its 80 W TDP is higher, but it carries no power connectors, consistent with an IGP that draws power through the host platform. The data indicates that AMD's part is the more capable compute solution, while Intel's part holds an advantage in shader count and process technology, plus the only recorded benchmark result in the database.