AMD Radeon RX 9050 vs Intel Arc B390 Comparison

AMD Radeon RX 9050 and Intel Arc B390 occupy different segments of the graphics hardware landscape, with the RX 9050 configured as a discrete dual-slot add-in board and the Arc B390 designed as an integrated graphics processor for portable systems. The database contains a single benchmark result for the Arc B390, while the RX 9050 has no recorded benchmark scores, so the comparison relies on architectural specifications, measured performance of the Arc B390, and the relative positioning provided by the nearest rival data.

Head-to-Head Benchmarks

The only direct performance measurement in the database is the 3DMark Steel Nomad DX12 test, where the Intel Arc B390 records a score of 1482. This places the Arc B390 at the 9th percentile among all GPUs, meaning roughly 91 percent of tracked graphics processors deliver a higher score in this workload. The nearest rivals for the Arc B390 are all NVIDIA mobile and OEM parts: the GeForce GT 520MX averages 1463, the GeForce 800M averages 1460, the GeForce GT 625 OEM averages 1446, and the GeForce GT 710 averages 1443. The Arc B390 sits 1.3 percent above the GT 520MX, 1.5 percent above the 800M, 2.5 percent above the GT 625 OEM, and 2.7 percent above the GT 710. These deltas are narrow, indicating that the Arc B390 clusters with entry-level discrete GPUs from several generations ago in this specific DX12 workload.

The AMD Radeon RX 9050 has no benchmark entries in the database, so there is no head-to-head score against the Arc B390. The RX 9050 does carry a percentileVsAllGpus value of 50, placing it at the median of all tracked GPUs, while the Arc B390 sits at the 9th percentile. This gap of 41 percentile points suggests that the RX 9050 would outperform the Arc B390 by a substantial margin in most workloads, though the database does not provide a measured score to quantify the difference.

Comparing compute throughput, the RX 9050 delivers 10.65 TFLOPS of FP32 performance, while the Arc B390 delivers 7.680 TFLOPS. That puts the RX 9050 about 38.7 percent higher in single-precision floating-point throughput. In FP16, the RX 9050 maintains a 1:1 ratio at 10.65 TFLOPS, whereas the Arc B390 uses a 2:1 ratio to reach 15.36 TFLOPS, meaning the Intel part has a higher peak FP16 figure despite lower FP32. Pixel fill rates differ starkly: the RX 9050 achieves 166.4 GPixel/s versus 60.00 GPixel/s for the Arc B390, a 2.77 times advantage. Texture fill rate shows the RX 9050 at 166.4 GTexel/s against 120.0 GTexel/s for the Arc B390, a 38.7 percent lead.

Where Each One Wins

The RX 9050 wins in scenarios that stress raw rasterization throughput, memory bandwidth, and dedicated VRAM. Its 8 GB of GDDR6 memory on a 128-bit bus delivers 288.0 GB/s of bandwidth, while the Arc B390 uses system shared memory with bandwidth listed as system dependent, meaning its effective throughput varies with the host platform's memory configuration. For gaming at typical resolutions or for compute workloads that require frequent memory access, the dedicated 288.0 GB/s allocation gives the RX 9050 a clear advantage. The higher pixel rate of 166.4 GPixel/s also benefits fill-rate-bound scenes, such as high-resolution rendering with heavy overdraw.

The Arc B390 wins in power efficiency and form factor. Its TDP is 80 W, below the RX 9050's 92 W. As an IGP, it requires no power connectors and no separate slot, making it suitable for thin portable devices where discrete graphics cannot be accommodated. The Arc B390 also has a higher FP16 throughput at 15.36 TFLOPS, which could benefit workloads that use FP16 arithmetic, provided the software can exploit the 2:1 rate. The 1536 shading units on the Arc B390 exceed the 1024 shading units on the RX 9050, though the RX 9050 compensates with higher clocks and faster memory.

For DX12 Ultimate workloads, both parts support the same feature level: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Arc B390's single benchmark score of 1482 in 3DMark Steel Nomad indicates it performs near the level of the GeForce GT 710 and GT 625 OEM, which are legacy entry-level parts. The RX 9050's median percentile ranking suggests it belongs in a different performance tier entirely.

Architecture Differences

The RX 9050 uses the Navi 44 chip built on TSMC's 4 nm process, implementing the RDNA 4.0 architecture. The die measures 199 mm² and contains 29,700 million transistors, yielding a transistor density of 149.2 million per mm². The Arc B390 uses the Panther Lake chip on Intel's 3 nm process, with the Xe3-LPG architecture. The database lists transistor count and die size as unknown for the Arc B390, so no density comparison is possible.

Clock behavior differs significantly. The RX 9050 has a base clock of 1330 MHz, a game clock of 1920 MHz, and a boost clock of 2600 MHz. The Arc B390 has a much lower base clock of 300 MHz and a boost clock of 2500 MHz, with no game clock listed. The large base clock disparity suggests the Arc B390 relies heavily on boost behavior, while the RX 9050 maintains higher sustained frequencies.

The memory subsystem diverges completely. The RX 9050 uses 8 GB of GDDR6 across a 128-bit interface with 288.0 GB/s bandwidth. The Arc B390 uses system shared memory, with bus width and bandwidth both listed as system dependent. This means the Arc B390's memory performance depends on the host device's RAM configuration, which can vary widely. The RX 9050's fixed 288.0 GB/s bandwidth provides predictable performance.

Shader resources differ in configuration. The RX 9050 has 1024 shading units, 64 TMUs, 64 ROPs, and 16 ray tracing cores. The Arc B390 has 1536 shading units, 48 TMUs, 24 ROPs, and 12 ray tracing cores. Despite having 50 percent more shading units, the Arc B390 has fewer texture units and ROPs, which explains its lower pixel and texture fill rates. The RX 9050 also has more ray tracing cores (16 versus 12), which could matter in ray-traced workloads.

Power delivery reflects their different roles. The RX 9050 has a TDP of 92 W, occupies a dual-slot form factor, uses a single 8-pin power connector, and requires a suggested PSU of 250 W. The Arc B390 has an 80 W TDP, is an IGP with no slot width, uses no power connectors, and has no suggested PSU because it draws from the host system. The RX 9050 connects via PCIe 5.0 x16, while the Arc B390 uses an IGP bus interface.

Display outputs also differ. The RX 9050 provides one HDMI 2.1b port and two DisplayPort 2.1a ports. The Arc B390's display outputs are listed as portable device dependent, meaning they vary by the device into which the processor is integrated. Release dates place the Arc B390 earlier, with a release date of January 2026, while the RX 9050 released in July 2026.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Radeon RX 9050 delivers 10.65 TFLOPS of FP32 throughput, while the Intel Arc B390 delivers 7.680 TFLOPS, giving the RX 9050 a lead of approximately 38.7 percent.

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

A: The Arc B390 scores 1482 in 3DMark Steel Nomad DX12. That is 1.3 percent above the NVIDIA GeForce GT 520MX (1463), 1.5 percent above the GeForce 800M (1460), 2.5 percent above the GeForce GT 625 OEM (1446), and 2.7 percent above the GeForce GT 710 (1443).

Q: What memory configurations do the two GPUs use?

A: The RX 9050 uses 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth. The Arc B390 uses system shared memory, with its bus width and bandwidth listed as system dependent.

Q: Which GPU has more shading units?

A: The Intel Arc B390 has 1536 shading units, compared to 1024 on the AMD Radeon RX 9050. However, the RX 9050 has higher pixel rate (166.4 GPixel/s vs 60.00 GPixel/s) and texture rate (166.4 GTexel/s vs 120.0 GTexel/s).

Q: What are the power requirements for each GPU?

A: The RX 9050 has a TDP of 92 W, uses a dual-slot form factor, requires a single 8-pin power connector, and lists a suggested PSU of 250 W. The Arc B390 has a TDP of 80 W, is an IGP with no power connectors, and has no suggested PSU listed.

Q: What is the percentile ranking for each GPU?

A: The RX 9050 sits at the 50th percentile among all GPUs in the database. The Arc B390 sits at the 9th percentile, with its nearest rivals all scoring within 2.7 percent of its 1482 benchmark result.

The Verdict

The database positions these two products for entirely different use cases. The AMD Radeon RX 9050 is a discrete graphics card with dedicated GDDR6 memory, a PCIe 5.0 x16 interface, and a dual-slot cooler. Its median percentile ranking of 50 indicates it sits at the midpoint of all tracked GPUs, which places it well above the Arc B390's 9th percentile. The RX 9050's higher FP32 throughput (10.65 TFLOPS), higher pixel rate (166.4 GPixel/s), higher texture rate (166.4 GTexel/s), and fixed 288.0 GB/s memory bandwidth make it the appropriate choice for discrete desktop systems where sustained rasterization performance matters.

The Intel Arc B390 is an integrated graphics processor built into a Panther Lake host. Its 80 W TDP, lack of power connectors, and system shared memory reflect a design optimized for portability and low power draw rather than peak performance. The single recorded benchmark score of 1482 in 3DMark Steel Nomad DX12, with nearest rivals being the GeForce GT 520MX, GeForce 800M, GT 625 OEM, and GT 710, shows it performs at the level of legacy entry-level discrete GPUs. The 1536 shading units and higher FP16 throughput of 15.36 TFLOPS do not compensate for the lower fill rates and memory bandwidth constraints.

The data shows no scenario where the Arc B390 outperforms the RX 9050 in a directly comparable metric. The RX 9050 leads in FP32, pixel rate, texture rate, memory bandwidth, boost clock (2600 MHz vs 2500 MHz), ray tracing cores (16 vs 12), and ROP count (64 vs 24). The Arc B390 leads in shading units (1536 vs 1024), FP16 peak throughput (15.36 TFLOPS vs 10.65 TFLOPS), and lower TDP (80 W vs 92 W). The Arc B390 also has a higher base clock of 300 MHz, though that figure is far below the RX 9050's 1330 MHz base.

For users building a desktop system with a dedicated slot, the RX 9050 provides substantially higher fill rates and a dedicated 8 GB memory pool. For ultraportable devices where discrete graphics are impossible, the Arc B390 offers a baseline level of DX12 Ultimate support that edges out the GeForce GT 710 by 2.7 percent. The 41-point gap in percentile ranking, combined with the RX 9050's 38.7 percent lead in FP32 throughput, indicates the RX 9050 belongs in a higher performance class. The Arc B390's nearest rivals are all more than a decade old in design lineage, which frames its performance tier accurately.