AMD Radeon 860M vs Intel Arc B770 Comparison

FAQ

Q: How does the AMD Radeon 860M compare to the Intel Arc B770 in raw compute performance?

A: The Radeon 860M delivers 3.072 TFLOPS of FP32 performance, while the Arc B770 delivers 19.66 TFLOPS. The Arc B770 also reaches 39.32 TFLOPS in FP16 (2:1 ratio), whereas the Radeon 860M offers 3.072 TFLOPS in FP16 (1:1 ratio).

Q: What are the memory specifications of each GPU?

A: The Radeon 860M uses System Shared memory with system-dependent bandwidth. 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 (16 Gbps effective).

Q: Which GPU has higher clock speeds?

A: The Radeon 860M has a base clock of 600 MHz and a boost clock of 3000 MHz. The Arc B770 has a base clock of 2100 MHz and a boost clock of 2400 MHz.

Q: What is the thermal design power (TDP) for each GPU?

A: The Radeon 860M has a TDP of 15 W and is an IGP (integrated graphics processor) with no power connectors. The Arc B770 has a TDP of 225 W, requires a 550 W suggested PSU, and uses 1x 6-pin plus 1x 8-pin power connectors.

Q: How do the benchmark scores compare between the two?

A: The Radeon 860M has an average benchmark score of 26401, placing it in the 72nd percentile among all GPUs. The Arc B770 has no recorded benchmark scores and an average score of 0, placing it in the 50th percentile.

Q: What is the process node and die size for each GPU?

A: The Radeon 860M uses a 4 nm process at TSMC with an unknown die size. The Arc B770 uses a 5 nm process at TSMC with a die size of 368 mm².

Architecture Differences

The AMD Radeon 860M is built on the RDNA 3.5 architecture, specifically the Krackan Point chip, and belongs to the Navi III IGP (Strix Point Mobile) generation. It is manufactured on a 4 nm process at TSMC. The GPU integrates 512 shading units, 32 texture mapping units, and 16 render output units. It includes 8 ray tracing cores and supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Radeon 860M connects via PCIe 4.0 x8 and outputs to portable device dependent displays. Its predecessor is the Navi II IGP, and it was released on 2025-02-28.

The Intel Arc B770 uses the Xe2-HPG architecture with the BMG-G31 chip, belonging to the Battlemage (Arc 7) generation. It is manufactured on a 5 nm process at TSMC with a die size of 368 mm². The GPU has 4096 shading units, 256 texture mapping units, and 128 render output units, along with 32 ray tracing cores. It supports the same API set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Arc B770 connects via PCIe 4.0 x16 and provides display outputs of 1x HDMI 2.1a and 3x DisplayPort 2.1. Its predecessor is Alchemist, and it has a release date of 2025-12-31.

The fundamental architectural divide is clear. The Radeon 860M is a low-power integrated solution designed for mobile platforms, evidenced by its 15 W TDP, IGP slot width, and absence of power connectors. The Arc B770 is a discrete, dual-slot add-in card demanding 225 W and a 550 W suggested PSU. The Arc B770 also carries significantly more execution resources: 8 times the shading units, 8 times the TMUs, 8 times the ROPs, and 4 times the ray tracing cores compared to the Radeon 860M. The Radeon 860M compensates with a higher boost clock (3000 MHz vs 2400 MHz) and a smaller process node (4 nm vs 5 nm), but the sheer difference in resource counts dominates the performance picture.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between the AMD Radeon 860M and the Intel Arc B770. However, the Radeon 860M has recorded benchmark scores that can be analyzed against its nearest rivals, while the Arc B770 has no recorded scores at all.

The Radeon 860M achieves 22759 in Geekbench OpenCL and 30043 in Geekbench Vulkan. Its average benchmark score is 26401, which places it in the 72nd percentile of all GPUs. The nearest rivals for the Radeon 860M include the NVIDIA GeForce MX550 with an average score of 26421 (a delta of -0.1%, meaning the MX550 is essentially tied), the NVIDIA GeForce RTX 5060 with 26331 (a delta of 0.3%, meaning the Radeon is slightly ahead), the AMD Radeon RX 5700 XT 50th Anniversary with 26553 (a delta of -0.6%, meaning the Radeon trails slightly), and the NVIDIA RTX A4000 with 26683 (a delta of -1.1%, meaning the Radeon trails by about one percent).

The data indicates that the Radeon 860M sits in a narrow performance band relative to these discrete GPUs. It is essentially equivalent to the GeForce MX550 (within 0.1%) and marginally ahead of the GeForce RTX 5060 (by 0.3%). The Radeon 860M trails the Radeon RX 5700 XT 50th Anniversary by 0.6% and the RTX A4000 by 1.1%. These deltas are all within a few percentage points, suggesting that the integrated Radeon 860M delivers performance competitive with several older or lower-tier discrete graphics cards despite its 15 W power envelope.

The Arc B770 has no benchmark scores recorded in the database. Its average benchmark score is 0, and its percentile rank is 50, which is the median position. This means no performance data is available to compare against the Radeon 860M or any other GPU. The Arc B770's nearest rivals list is empty, further confirming the absence of comparative data. The only quantitative conclusions that can be drawn about the Arc B770 come from its architectural specifications, not from measured performance.

Given the lack of direct head-to-head results and the absence of any Arc B770 benchmark scores, a numerical comparison of the two GPUs in actual workloads is not possible from the recorded data. The Radeon 860M has demonstrable performance in the vicinity of mid-range discrete GPUs from previous generations, while the Arc B770's real-world performance remains unmeasured in this database.

Specification Differences

The two GPUs differ across nearly every specification field recorded in the database.

Process and Die: The Radeon 860M uses a 4 nm TSMC process with an unknown die size. The Arc B770 uses a 5 nm TSMC process with a 368 mm² die size.

Clock Speeds: The Radeon 860M has a 600 MHz base clock and a 3000 MHz boost clock. The Arc B770 has a 2100 MHz base clock and a 2400 MHz boost clock.

Memory: The Radeon 860M uses System Shared memory with a system-dependent bus width and bandwidth. The Arc B770 uses 16 GB of GDDR6 memory on a 256-bit bus with 512.0 GB/s bandwidth and a memory clock of 2000 MHz (16 Gbps effective).

Compute Resources: The Radeon 860M has 512 shading units, 32 TMUs, 16 ROPs, and 8 ray tracing cores. The Arc B770 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores.

Performance Rates: The Radeon 860M achieves 48.00 GPixel/s pixel rate and 96.00 GTexel/s texture rate. The Arc B770 achieves 307.2 GPixel/s and 614.4 GTexel/s.

FP32 and FP16: The Radeon 860M delivers 3.072 TFLOPS FP32 and 3.072 TFLOPS FP16 (1:1 ratio). The Arc B770 delivers 19.66 TFLOPS FP32 and 39.32 TFLOPS FP16 (2:1 ratio).

Power and Cooling: The Radeon 860M has a 15 W TDP, is an IGP with no power connectors, and has no suggested PSU. The Arc B770 has a 225 W TDP, is dual-slot, uses 1x 6-pin plus 1x 8-pin power connectors, and has a 550 W suggested PSU.

Bus Interface and Outputs: The Radeon 860M uses PCIe 4.0 x8 and portable device dependent display outputs. The Arc B770 uses PCIe 4.0 x16 and provides 1x HDMI 2.1a plus 3x DisplayPort 2.1.

Production and Release: The Radeon 860M has an Active production status and a release date of 2025-02-28. The Arc B770 has a null production status and a release date of 2025-12-31.

Benchmark Data: The Radeon 860M has recorded scores (22759 OpenCL, 30043 Vulkan, average 26401, 72nd percentile). The Arc B770 has no recorded scores (average 0, 50th percentile).

The Verdict

The data supports a clear distinction between these two products. The AMD Radeon 860M is an integrated GPU with a 15 W TDP, designed for portable devices. Its benchmark results place it in the 72nd percentile of all GPUs, with an average score of 26401. It competes closely with discrete GPUs like the GeForce MX550 (26421, -0.1%), GeForce RTX 5060 (26331, +0.3%), Radeon RX 5700 XT 50th Anniversary (26553, -0.6%), and RTX A4000 (26683, -1.1%). These deltas are all under 1.2%, meaning the Radeon 860M delivers performance statistically similar to those cards in the database's measurements.

The Intel Arc B770 has no benchmark data. Its average score is 0, and it sits at the 50th percentile. The database contains no measurement of its performance, no nearest rivals, and no head-to-head results. From a purely data-driven perspective, the Arc B770 cannot be validated as a performer. Its specifications, however, indicate a far more substantial GPU: 8 times the shading units, 8 times the TMUs, 8 times the ROPs, 4 times the ray tracing cores, 16 GB of dedicated GDDR6 memory with 512.0 GB/s bandwidth, and over 6 times the FP32 throughput (19.66 TFLOPS vs 3.072 TFLOPS).

The verdict depends on what the data can support. For the Radeon 860M, the record shows a proven, measured performance level that rivals several discrete GPUs. For the Arc B770, the record shows a high-specification discrete card with zero recorded performance evidence. A user requiring verified results from the database would select the Radeon 860M. A user prioritizing raw architectural resources and accepting unverified specifications would select the Arc B770, but the database offers no measured confirmation of its actual performance.

Where Each One Wins

AMD Radeon 860M wins on measured performance data. The database records average benchmark scores of 26401, placing it in the 72nd percentile. It has specific Geekbench results in both OpenCL (22759) and Vulkan (30043). The Arc B770 has no scores, so the Radeon 860M is the only GPU of the two with verified performance in the database.

AMD Radeon 860M wins on power efficiency. Its 15 W TDP is dramatically lower than the Arc B770's 225 W TDP. It requires no power connectors and no suggested PSU, fitting into portable devices with system-shared memory. The Arc B770 requires a dual-slot form factor, 1x 6-pin plus 1x 8-pin connectors, and a 550 W suggested PSU.

AMD Radeon 860M wins on process technology. It uses a 4 nm TSMC process versus the Arc B770's 5 nm TSMC process. It also has a higher boost clock at 3000 MHz versus 2400 MHz.

Intel Arc B770 wins on raw compute resources. It has 4096 shading units versus 512, 256 TMUs versus 32, 128 ROPs versus 16, and 32 ray tracing cores versus 8. It delivers 19.66 TFLOPS FP32 versus 3.072 TFLOPS and 39.32 TFLOPS FP16 versus 3.072 TFLOPS.

Intel Arc B770 wins on memory. It has 16 GB of dedicated GDDR6 memory on a 256-bit bus with 512.0 GB/s bandwidth. The Radeon 860M relies on system-shared memory with system-dependent bandwidth.

Intel Arc B770 wins on throughput rates. It achieves 307.2 GPixel/s and 614.4 GTexel/s, compared to 48.00 GPixel/s and 96.00 GTexel/s for the Radeon 860M. It also uses a PCIe 4.0 x16 interface versus x8, and offers fixed display outputs (1x HDMI 2.1a, 3x DisplayPort 2.1) rather than portable-device-dependent outputs.