AMD Ryzen Z2 Go GPU vs Intel Arc B390 Comparison

The Verdict

The data presents a sharp split between two designs aimed at different corners of the mobile market. The AMD Ryzen Z2 Go GPU is a low-power, integrated-class part with a 28 W TDP, a 50th percentile ranking among all GPUs, and no recorded benchmark scores in the database. The Intel Arc B390 is an integrated graphics processor (IGP) with an 80 W TDP, a 9th percentile ranking, and one recorded benchmark result: a 3DMark Steel Nomad DX12 score of 1482, which places it 1.3% ahead of the NVIDIA GeForce GT 520MX, 1.5% ahead of the GeForce 800M, 2.5% ahead of the GeForce GT 625 OEM, and 2.7% ahead of the GeForce GT 710.

The verdict from the recorded data is straightforward. The Intel Arc B390 has a measurable performance data point, but that data point is remarkably low in absolute terms, placing it in the bottom 9% of all GPUs. The AMD Ryzen Z2 Go GPU has no benchmark results at all, so its actual performance cannot be quantified from the database. The Arc B390 delivers roughly 85% more FP32 throughput on paper (7.680 TFLOPS versus 4.147 TFLOPS), but it also consumes nearly three times the power (80 W versus 28 W). The Ryzen Z2 Go GPU, despite its lack of recorded scores, holds a much higher percentile ranking (50th versus 9th), which suggests the database's broader performance distribution places the AMD part far above the Intel part despite the absence of direct measurements.

For a user prioritizing raw compute throughput and a confirmed, albeit modest, DirectX 12 benchmark result, the Intel Arc B390 is the only option with recorded data. For a user prioritizing power efficiency and a higher overall percentile standing, the AMD Ryzen Z2 Go GPU is the better fit based on the available metrics. The Arc B390's nearest rivals are all NVIDIA parts from the GT 500M, 800M, GT 600, and GT 700 families, all of which are older, low-end mobile or OEM GPUs. This positions the Arc B390 as a very low-tier performer in the database's ranking, while the Ryzen Z2 Go GPU sits at the median of all GPUs.

Architecture Differences

The two GPUs come from different manufacturers and use different fabrication processes. The AMD Ryzen Z2 Go GPU is built by AMD on a 6 nm TSMC process, using the Rembrandt+ chip and the RDNA 2.0 architecture. It belongs to the Console GPU (AMD) generation. Its transistor count is 13,100 million on a 208 mm² die, yielding a transistor density of 63.0M per mm². The Intel Arc B390 is built by Intel on a 3 nm Intel process, using the Panther Lake chip and the Xe3-LPG architecture. It belongs to the Arc Graphics-M (Panther Lake) generation. Intel's transistor count and die size are recorded as unknown, so no density figure is available.

The memory subsystems differ fundamentally. The AMD part uses 16 GB of LPDDR5 memory on a 128-bit bus, with 102.4 GB/s of bandwidth and memory clocks at 800 MHz, 6.4 Gbps effective. The Intel part uses system shared memory, with a system dependent bandwidth and no dedicated memory clock. This means the AMD GPU has a fixed, dedicated memory pool, while the Intel GPU relies on the host system's memory, making its bandwidth dependent on the platform.

Compute resources also differ. The AMD Ryzen Z2 Go GPU has 768 shading units, 48 texture mapping units, and 32 raster output pipelines. The Intel Arc B390 has 1536 shading units, 48 texture mapping units, and 24 raster output pipelines. Both have 12 ray tracing cores, and neither has tensor cores recorded. The AMD part's pixel rate is 86.40 GPixel/s, while the Intel part's is 60.00 GPixel/s. The AMD part's texture rate is 129.6 GTexel/s, while the Intel part's is 120.0 GTexel/s. FP32 throughput is 4.147 TFLOPS for AMD and 7.680 TFLOPS for Intel. FP16 throughput is 8.294 TFLOPS (2:1) for AMD and 15.36 TFLOPS (2:1) for Intel.

Clock behavior differs as well. The AMD part has a base clock of 800 MHz and a boost clock of 2700 MHz. The Intel part has a base clock of 300 MHz and a boost clock of 2500 MHz. The Intel part's higher shading unit count compensates for its lower clocks, resulting in higher raw FP32 throughput, but the AMD part's higher clocks and higher ROP count give it a faster pixel fill rate.

Where Each One Wins

The Intel Arc B390 wins on raw compute throughput. Its FP32 figure of 7.680 TFLOPS is 85% higher than the AMD part's 4.147 TFLOPS. Its FP16 figure of 15.36 TFLOPS is 85% higher than the AMD part's 8.294 TFLOPS. It also has double the shading units: 1536 versus 768. The Arc B390 is the only one of the two with a recorded benchmark score, and that score, 1482 in 3DMark Steel Nomad DX12, confirms it can complete a modern DirectX 12 workload, albeit at a very low level relative to the database.

The AMD Ryzen Z2 Go GPU wins on efficiency and memory configuration. Its TDP is 28 W versus 80 W, meaning it consumes 65% less power. It has a dedicated 16 GB LPDDR5 pool with 102.4 GB/s of bandwidth, while the Intel part depends on system shared memory. The AMD part also has a higher pixel rate at 86.40 GPixel/s versus 60.00 GPixel/s, and a higher texture rate at 129.6 GTexel/s versus 120.0 GTexel/s. The AMD part's percentile ranking of 50 versus the Intel part's 9 indicates the database places the AMD part at the median of all GPUs, while the Intel part sits near the bottom.

The AMD part also has a higher boost clock (2700 MHz versus 2500 MHz) and a much higher base clock (800 MHz versus 300 MHz). The AMD part uses a 6 nm TSMC process, while the Intel part uses a 3 nm Intel process, but the AMD part's lower TDP suggests its power envelope is far more constrained.

FAQ

Q: Which GPU has a recorded benchmark score?

A: Only the Intel Arc B390 has a recorded benchmark score: 1482 in 3DMark Steel Nomad DX12. The AMD Ryzen Z2 Go GPU has no benchmark results in the database.

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

A: The Arc B390 is 1.3% ahead of the NVIDIA GeForce GT 520MX, 1.5% ahead of the GeForce 800M, 2.5% ahead of the GeForce GT 625 OEM, and 2.7% ahead of the GeForce GT 710.

Q: What is the power consumption difference?

A: The AMD Ryzen Z2 Go GPU has a TDP of 28 W, while the Intel Arc B390 has a TDP of 80 W. The AMD part consumes 52 W less.

Q: How do the memory configurations differ?

A: The AMD part has 16 GB of dedicated LPDDR5 memory on a 128-bit bus with 102.4 GB/s bandwidth. The Intel part uses system shared memory with system dependent bandwidth.

Q: Which GPU has more shading units?

A: The Intel Arc B390 has 1536 shading units, double the 768 shading units of the AMD Ryzen Z2 Go GPU.

Q: What are the percentile rankings?

A: The AMD Ryzen Z2 Go GPU is at the 50th percentile of all GPUs, while the Intel Arc B390 is at the 9th percentile.

Head-to-Head Benchmarks

There are no direct head-to-head benchmark results recorded between these two GPUs. The database shows zero wins for each side in head-to-head tests. However, the Intel Arc B390's single benchmark result provides a reference point. Its 3DMark Steel Nomad DX12 score of 1482 places it just ahead of four NVIDIA rivals: the GeForce GT 520MX at 1463 (1.3% behind), the GeForce 800M at 1460 (1.5% behind), the GeForce GT 625 OEM at 1446 (2.5% behind), and the GeForce GT 710 at 1443 (2.7% behind). These deltas are narrow, indicating the Arc B390 performs at the level of entry-level NVIDIA GPUs from roughly a decade ago.

The AMD Ryzen Z2 Go GPU has no benchmark scores, so its performance cannot be directly compared to the Arc B390's 1482 score. The only performance-related data for the AMD part are its theoretical rates: 86.40 GPixel/s pixel rate, 129.6 GTexel/s texture rate, 4.147 TFLOPS FP32, and 8.294 TFLOPS FP16. The Intel part's theoretical rates are 60.00 GPixel/s pixel rate, 120.0 GTexel/s texture rate, 7.680 TFLOPS FP32, and 15.36 TFLOPS FP16. The Intel part leads in FP32 and FP16 by 85%, while the AMD part leads in pixel rate by 44% and texture rate by 8%.

The percentile gap is the most striking difference. The AMD part's 50th percentile versus the Intel part's 9th percentile suggests that, across the entire database of GPUs, the AMD part is expected to perform far better than the Intel part, even though the Intel part has a confirmed score and the AMD part does not. The Arc B390's score of 1482 is low enough to rank it below 91% of all GPUs. The Ryzen Z2 Go GPU's lack of recorded scores means its percentile is derived from other data, but the database still places it at the median.

Specification Differences

The two GPUs differ in nearly every major specification category.

Process and foundry: AMD uses a 6 nm TSMC process. Intel uses a 3 nm Intel process.

Transistors and die: AMD has 13,100 million transistors on a 208 mm² die, with a density of 63.0M per mm². Intel's transistor count and die size are unknown.

Clocks: AMD has a base clock of 800 MHz and a boost clock of 2700 MHz. Intel has a base clock of 300 MHz and a boost clock of 2500 MHz.

Memory: AMD has 16 GB of LPDDR5 on a 128-bit bus with 102.4 GB/s bandwidth and 800 MHz, 6.4 Gbps effective memory clocks. Intel uses system shared memory with system dependent bandwidth.

Shading units: AMD has 768. Intel has 1536.

TMUs: AMD has 48. Intel has 48.

ROPs: AMD has 32. Intel has 24.

RT cores: Both have 12.

Pixel rate: AMD has 86.40 GPixel/s. Intel has 60.00 GPixel/s.

Texture rate: AMD has 129.6 GTexel/s. Intel has 120.0 GTexel/s.

FP32: AMD has 4.147 TFLOPS. Intel has 7.680 TFLOPS.

FP16: AMD has 8.294 TFLOPS (2:1). Intel has 15.36 TFLOPS (2:1).

TDP: AMD has 28 W. Intel has 80 W.

Slot width and interface: AMD has no slot width or bus interface recorded. Intel is an IGP with an IGP bus interface.

Power connectors: Both have none.

Display outputs: AMD has 1x USB Type-C. Intel is portable device dependent.

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

Release date: AMD was released on 2024-12-31. Intel was released on 2026-01-26.

Production status: Both are active.

Benchmark scores: AMD has none. Intel has one: 1482 in 3DMark Steel Nomad DX12.

Percentile: AMD is at the 50th percentile. Intel is at the 9th percentile.