AMD Radeon 890M vs Intel Arc B770 Comparison

FAQ

Q: What is the fundamental difference between the AMD Radeon 890M and the Intel Arc B770?

A: The AMD Radeon 890M is an integrated graphics processor (IGP) built on the Strix Point chip with RDNA 3.5 architecture, while the Intel Arc B770 is a discrete dual-slot graphics card using the BMG-G31 chip with Xe2-HPG (Battlemage) architecture.

Q: How do the memory subsystems compare?

A: The 890M uses system-shared memory with bandwidth that is system dependent, whereas the Arc B770 has 16 GB of dedicated GDDR6 memory on a 256-bit bus delivering 512.0 GB/s.

Q: Which GPU has more raw shading power?

A: The Intel Arc B770 has 4096 shading units compared to 1024 on the 890M, and its FP32 throughput is 19.66 TFLOPS versus 5.939 TFLOPS for the AMD part.

Q: What are the power requirements for each?

A: The 890M has a 15 W TDP and requires no power connectors, while the Arc B770 has a 225 W TDP and needs one 6-pin and one 8-pin power connector.

Q: What does the benchmark data show about the 890M's standing?

A: The 890M has an average benchmark score of 9210 and sits at the 45th percentile of all GPUs, with its nearest rival being the AMD Radeon Vega 8 at 9221 (0.1% higher).

Q: Why is there no head-to-head benchmark comparison available?

A: The database has no recorded benchmark scores for the Intel Arc B770, and no head-to-head test results exist between the two products.

Architecture Differences

The AMD Radeon 890M and Intel Arc B770 diverge at nearly every architectural level. The 890M uses the Strix Point chip with RDNA 3.5 architecture, manufactured on a 4 nm process at TSMC with 34,000 million transistors on a 233 mm² die. The Arc B770 uses the BMG-G31 chip with Xe2-HPG architecture, built on a 5 nm process at TSMC with a larger 368 mm² die, though its transistor count is not recorded in the database.

The compute configurations differ substantially. The 890M has 1024 shading units, 64 texture mapping units, 32 raster operation units, and 16 ray tracing cores. The Arc B770 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. This represents a 4x increase in shading units and ROPs, and a 4x increase in TMUs for the Intel part.

Clock behavior also differs. The 890M operates at a 400 MHz base clock and boosts to 2900 MHz. The Arc B770 has a 2100 MHz base clock and a 2400 MHz boost clock. The AMD part boosts significantly higher, but the Intel part starts from a much higher base.

The memory architecture is the most striking difference. The 890M relies entirely on system-shared memory with bus width, type, and bandwidth all listed as system dependent. The Arc B770 has 16 GB of GDDR6 memory on a 256-bit bus with 512.0 GB/s bandwidth and memory clocked at 2000 MHz with 16 Gbps effective speed. This dedicated memory arrangement gives the Intel card a massive bandwidth advantage.

The 890M is an IGP with no slot width and no power connectors, while the Arc B770 is a dual-slot card requiring one 6-pin and one 8-pin power connector with a suggested 550 W power supply. The bus interface differs as well: PCIe 4.0 x8 for the AMD part versus PCIe 4.0 x16 for Intel. Display outputs are portable device dependent on the 890M, while the Arc B770 offers 1x HDMI 2.1a and 3x DisplayPort 2.1.

Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. FP16 processing differs: the 890M runs at 5.939 TFLOPS with a 1:1 ratio to FP32, while the Arc B770 reaches 39.32 TFLOPS with a 2:1 ratio, indicating much stronger half-precision throughput.

The Verdict

The Intel Arc B770 is the clear performance leader based on architectural specifications alone. Its 19.66 TFLOPS FP32 throughput is 3.3x higher than the 890M's 5.939 TFLOPS. The 512.0 GB/s dedicated memory bandwidth versus system-shared memory means the Arc B770 will not compete with the CPU for memory access. The 4x shading unit count, 4x TMU count, and 4x ROP count all point to substantially higher fill rates and compute capacity.

The AMD Radeon 890M serves a fundamentally different role. As a 15 W IGP with no power connectors, it fits into portable devices where the Arc B770's 225 W TDP and dual-slot cooler cannot apply. The 890M's 45th percentile ranking among all GPUs, with an average benchmark score of 9210, places it just 0.1% behind the AMD Radeon Vega 8 and 0.7% behind the NVIDIA GeForce GTX 960. These are the closest rivals in the database, indicating the 890M delivers respectable integrated graphics performance.

The decision hinges on use case, not raw capability. The data shows the Arc B770 is designed for desktop systems with a 550 W suggested power supply and discrete graphics expectations. The 890M is designed for mobile and compact systems where the IGP form factor and minimal power draw are mandatory. Users needing maximum graphics throughput should choose the Arc B770. Users constrained by power and space should choose the 890M.

Specification Differences

| Specification | AMD Radeon 890M | Intel Arc B770 |

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

| Chip | Strix Point | BMG-G31 |

| Architecture | RDNA 3.5 | Xe2-HPG |

| Generation | Navi III IGP (Strix Point Mobile) | Battlemage (Arc 7) |

| Process Node | 4 nm | 5 nm |

| Transistors | 34,000 million | unknown |

| Die Size | 233 mm² | 368 mm² |

| Base Clock | 400 MHz | 2100 MHz |

| Boost Clock | 2900 MHz | 2400 MHz |

| Memory Size | System Shared | 16 GB |

| Memory Type | System Shared | GDDR6 |

| Memory Bus | System Shared | 256 bit |

| Memory Bandwidth | System Dependent | 512.0 GB/s |

| Shading Units | 1024 | 4096 |

| TMUs | 64 | 256 |

| ROPs | 32 | 128 |

| RT Cores | 16 | 32 |

| Pixel Rate | 92.80 GPixel/s | 307.2 GPixel/s |

| Texture Rate | 185.6 GTexel/s | 614.4 GTexel/s |

| FP32 | 5.939 TFLOPS | 19.66 TFLOPS |

| FP16 | 5.939 TFLOPS (1:1) | 39.32 TFLOPS (2:1) |

| TDP | 15 W | 225 W |

| Slot Width | IGP | Dual-slot |

| Power Connectors | None | 1x 6-pin + 1x 8-pin |

| Suggested PSU | None | 550 W |

| Bus Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |

| Display Outputs | Portable Device Dependent | 1x HDMI 2.1a, 3x DisplayPort 2.1 |

| Release Date | 2024-07-14 | 2025-12-31 |

| Predecessor | Navi II IGP | Alchemist |

Head-to-Head Benchmarks

The database contains no head-to-head benchmark results between the AMD Radeon 890M and the Intel Arc B770. The Intel part has no recorded benchmark scores, and the wins counter for both products sits at zero.

The 890M's available benchmark results provide context for its performance tier. In 3DMark Steel Nomad DX12, it scores 590. Geekbench results show 37254 in OpenCL and 40808 in Vulkan. Passmark scores are 33 in DirectX 10, 73 in DirectX 11, 37 in DirectX 12, 97 in DirectX 9, 979 in G2D, 8076 in G3D, and 4157 in GPU compute. The average benchmark score is 9210.

The nearest rivals in the database place the 890M in a specific performance band. The AMD Radeon Vega 8 averages 9221, which is 0.1% higher. The NVIDIA GeForce GTX 960 averages 9273, which is 0.7% higher. The NVIDIA GeForce GTX 465 averages 9294, which is 0.9% higher. The NVIDIA GeForce GTX 850M averages 9302, which is 1% higher. These small deltas indicate the 890M sits within 1% of a cluster of older discrete and integrated GPUs.

Given the Arc B770's architectural specifications, projected performance can be inferred from its fill rates and compute throughput. The pixel rate of 307.2 GPixel/s is 3.3x the 890M's 92.80 GPixel/s. The texture rate of 614.4 GTexel/s is 3.3x the 890M's 185.6 GTexel/s. The FP32 output of 19.66 TFLOPS is 3.3x the 890M's 5.939 TFLOPS. These consistent 3.3x ratios across all three metrics suggest the Arc B770 would deliver proportionally higher scores in rasterization and compute workloads.

Where Each One Wins

AMD Radeon 890M wins on power efficiency and integration. The 15 W TDP versus 225 W represents a 15x difference in power draw. The IGP form factor with no power connectors and no slot width makes it suitable for portable devices. The 4 nm process node provides a density of 145.9M transistors per mm², higher than the Arc B770's unspecified density. The 2900 MHz boost clock is 500 MHz higher than the Arc B770's 2400 MHz boost, indicating better clock scaling in thermally constrained environments. The 890M's release date of 2024-07-14 also makes it available earlier.

Intel Arc B770 wins on raw graphics performance. The 4096 shading units, 256 TMUs, and 128 ROPs provide 4x the compute and texturing resources of the 890M. The 16 GB GDDR6 memory with 512.0 GB/s bandwidth eliminates the system-shared bottleneck entirely. The 39.32 TFLOPS FP16 throughput with a 2:1 ratio enables much faster half-precision compute than the 890M's 1:1 ratio at 5.939 TFLOPS. The 32 ray tracing cores double the 890M's 16, improving ray-traced workloads. The PCIe 4.0 x16 interface doubles the bandwidth of the 890M's PCIe 4.0 x8 link. The 368 mm² die size indicates a substantially larger silicon allocation for graphics processing.

Use case split: The 890M wins in ultra-portable laptops, thin-and-light devices, and systems where the 15 W TDP and IGP form factor are mandatory. The Arc B770 wins in desktop gaming, content creation, and compute workloads where the 225 W TDP, dual-slot cooler, and dedicated 16 GB VRAM can be accommodated. The 550 W suggested power supply requirement positions the Arc B770 for full desktop builds, while the 890M's system-shared memory makes it dependent on the host system's RAM performance.