AMD Ryzen Z1 GPU vs Intel Arc B770 Comparison

Where Each One Wins

The recorded data places the AMD Ryzen Z1 GPU and the Intel Arc B770 in entirely different segments of the graphics market, with no direct head-to-head benchmark results captured. The AMD Ryzen Z1 GPU is positioned as a compact, low-power console-class part, while the Intel Arc B770 is a full-sized desktop add-in board. The separation is immediate from power and physical design: the Ryzen Z1 GPU carries a 30 W TDP and has no display outputs, indicating an embedded or companion processor role, whereas the Arc B770 draws 225 W, requires a dual-slot cooler, and powers displays through one HDMI 2.1a port and three DisplayPort 2.1 outputs.

The AMD part wins on mobility and integration. Its 4 nm TSMC process, 178 mm² die, and 30 W power envelope allow it to fit into compact systems where a 225 W board with a dual-slot cooler and two power connectors is not viable. The Arc B770, by contrast, wins on raw throughput and memory bandwidth. The data shows the Intel part delivering 19.66 TFLOPS FP32 compute against 2.560 TFLOPS for the AMD part, a difference that indicates the Arc B770 is aimed at high-resolution rendering and compute workloads, while the Ryzen Z1 GPU is suited to lightweight graphics tasks or as a secondary processor.

The use-case split is therefore clear: the Ryzen Z1 GPU serves low-power, space-constrained environments where output connectivity is not needed, and the Arc B770 serves traditional desktop graphics with high pixel throughput, high texture rate, and a wide memory interface. Neither part encroaches on the other's primary territory. The AMD part has no rasterization rate advantage; the Intel part has no power efficiency advantage in the recorded figures. The Ryzen Z1 GPU's 16 GB of LPDDR5 memory on a 64-bit bus delivers 51.20 GB/s, which is sufficient for its modest compute capacity, while the Arc B770's 16 GB of GDDR6 on a 256-bit bus delivers 512.0 GB/s, a tenfold bandwidth advantage that aligns with its much higher shading unit count.

Architecture Differences

The two GPUs come from different architectural families. The AMD Ryzen Z1 GPU uses the RDNA 3.0 architecture on the Phoenix chip, fabricated on a 4 nm process at TSMC. The Intel Arc B770 uses the Xe2-HPG architecture on the BMG-G31 chip, fabricated on a 5 nm process, also at TSMC. The process node difference is small in absolute terms, but the chip scale is not: the AMD die measures 178 mm² and contains 25,390 million transistors, giving a transistor density of 142.6 million per square millimeter. The Intel die is 368 mm², more than double the area, with transistor count listed as unknown in the database.

The compute resources diverge sharply. The Ryzen Z1 GPU contains 256 shading units, 16 texture mapping units, 8 raster operation units, and 4 ray tracing cores. The Arc B770 contains 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. That is a 16x difference in shading units and TMUs, and a 16x difference in ray tracing cores. The ROP count differs by the same factor. These structural differences explain the pixel and texture rate gaps: the Ryzen Z1 GPU reaches 20.00 GPixel/s and 40.00 GTexel/s, while the Arc B770 reaches 307.2 GPixel/s and 614.4 GTexel/s.

Memory architecture also differs fundamentally. The AMD part uses LPDDR5 memory on a 64-bit bus, which is a low-power, low-bandwidth configuration typical of integrated or embedded designs. The Intel part uses GDDR6 on a 256-bit bus, a high-bandwidth discrete memory configuration. Clock behavior differs as well: the Ryzen Z1 GPU has a base clock of 1500 MHz and a boost clock of 2500 MHz, with memory running at 800 MHz (6.4 Gbps effective). The Arc B770 has a base clock of 2100 MHz and a boost clock of 2400 MHz, with memory at 2000 MHz (16 Gbps effective). The AMD part boosts higher, but its narrower memory bus and far fewer execution units cap its overall throughput.

Both parts support the same API set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The power delivery requirements reflect the performance gap. The Ryzen Z1 GPU has no power connectors and a 30 W TDP. The Arc B770 requires one 6-pin and one 8-pin power connector, a 225 W TDP, and a suggested 550 W power supply. The AMD part carries no bus interface listing and no display outputs, while the Intel part uses PCIe 4.0 x16 and provides four display outputs. The AMD part is 280 mm long, 111 mm high, and 21 mm wide, dimensions that appear inconsistent with a 30 W embedded chip but are recorded as such; the Intel part has no recorded dimensions.

Head-to-Head Benchmarks

The database lists no head-to-head benchmark entries for the AMD Ryzen Z1 GPU versus the Intel Arc B770. Both parts have an average benchmark score of zero and a percentile rank of 50 against all GPUs, which reflects the absence of recorded measurements rather than parity in performance. With winsA and winsB both at zero, the quantitative comparison must rest on the specification-level figures in the database.

The largest measured gap is in FP32 throughput. The Arc B770 delivers 19.66 TFLOPS, which is 7.68 times the 2.560 TFLOPS of the Ryzen Z1 GPU. In FP16, the Intel part reaches 39.32 TFLOPS against 5.120 TFLOPS for the AMD part, again a 7.68x ratio. These figures indicate that the Arc B770 can process compute workloads at a rate the Ryzen Z1 GPU cannot approach, assuming both are operating within their power limits.

Memory bandwidth shows an even larger relative difference. The Arc B770's 512.0 GB/s is exactly ten times the 51.20 GB/s of the Ryzen Z1 GPU. This bandwidth advantage matters for texture-heavy scenes, high-resolution frame buffers, and data-intensive compute. The pixel rate gap is 15.36x (307.2 GPixel/s versus 20.00 GPixel/s), and the texture rate gap is the same factor (614.4 GTexel/s versus 40.00 GTexel/s). These ratios are consistent with the 16x differences in ROP and TMU counts, with clock speeds partially compensating on the AMD side.

The Ryzen Z1 GPU does hold a clock advantage at boost: 2500 MHz versus 2400 MHz for the Arc B770. It also has a higher transistor density, 142.6 million per square millimeter versus an unknown figure for the Intel part, and a smaller die at 178 mm² versus 368 mm². The AMD part's 30 W TDP is 7.5 times lower than the Intel part's 225 W TDP. For workloads that fit within 2.560 TFLOPS, 20.00 GPixel/s, and 51.20 GB/s, the Ryzen Z1 GPU delivers that performance at a fraction of the power draw. The Arc B770, however, outclasses it in every throughput metric recorded, with no benchmark result indicating any workload where the AMD part wins.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The Intel Arc B770 delivers 19.66 TFLOPS FP32, which is 7.68 times the 2.560 TFLOPS of the AMD Ryzen Z1 GPU.

Q: How do the memory configurations compare?

A: Both have 16 GB of memory, but the Ryzen Z1 GPU uses LPDDR5 on a 64-bit bus with 51.20 GB/s bandwidth, while the Arc B770 uses GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth.

Q: What are the power requirements for each card?

A: The AMD Ryzen Z1 GPU has a 30 W TDP and no power connectors. The Intel Arc B770 has a 225 W TDP, requires one 6-pin and one 8-pin power connector, and lists a suggested 550 W power supply.

Q: Do both GPUs support the same APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: Which GPU can connect to displays?

A: The Intel Arc B770 provides 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs. The AMD Ryzen Z1 GPU has no display outputs.

Q: How do the ray tracing capabilities differ?

A: The Arc B770 contains 32 ray tracing cores, while the Ryzen Z1 GPU contains 4 ray tracing cores.

Q: What is the release timing for these parts?

A: The AMD Ryzen Z1 GPU has a release date of 2023-09-17 and a launch MSRP of 599 USD. The Intel Arc B770 has a release date of 2025-12-31.

Specification Differences

The two GPUs differ across every major specification category in the database.

Process and die: The Ryzen Z1 GPU uses a 4 nm process at TSMC with a 178 mm² die and 25,390 million transistors. The Arc B770 uses a 5 nm process at TSMC with a 368 mm² die and an unknown transistor count.

Clock speeds: The Ryzen Z1 GPU has a 1500 MHz base and 2500 MHz boost. The Arc B770 has a 2100 MHz base and 2400 MHz boost. Memory clocks are 800 MHz (6.4 Gbps effective) for the AMD part and 2000 MHz (16 Gbps effective) for the Intel part.

Memory system: The Ryzen Z1 GPU uses 16 GB LPDDR5 on a 64-bit bus with 51.20 GB/s bandwidth. The Arc B770 uses 16 GB GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth.

Execution resources: The Ryzen Z1 GPU has 256 shading units, 16 TMUs, 8 ROPs, and 4 ray tracing cores. The Arc B770 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores.

Rates and throughput: The Ryzen Z1 GPU reaches 20.00 GPixel/s, 40.00 GTexel/s, 2.560 TFLOPS FP32, and 5.120 TFLOPS FP16. The Arc B770 reaches 307.2 GPixel/s, 614.4 GTexel/s, 19.66 TFLOPS FP32, and 39.32 TFLOPS FP16.

Power and cooling: The Ryzen Z1 GPU has a 30 W TDP and no power connectors. The Arc B770 has a 225 W TDP, a dual-slot cooler, one 6-pin plus one 8-pin power connector, and a suggested 550 W power supply.

Connectivity: The Ryzen Z1 GPU has no display outputs and no listed bus interface. The Arc B770 uses PCIe 4.0 x16 and provides 1x HDMI 2.1a plus 3x DisplayPort 2.1.

Physical dimensions: The Ryzen Z1 GPU is recorded at 280 mm length, 111 mm height, and 21 mm width. The Arc B770 has no recorded dimensions.

Release and status: The Ryzen Z1 GPU is listed as Active production, released 2023-09-17 with a launch MSRP of 599 USD. The Arc B770 has a release date of 2025-12-31, lists Alchemist as its predecessor, and has no production status or launch MSRP recorded. Both parts share the same API support and both are rated at the 50th percentile against all GPUs in the database, with no benchmark scores recorded for either.