AMD Radeon RX 7400 vs Intel Arc Pro B390 Comparison

FAQ

Q: What is the core architectural difference between the AMD Radeon RX 7400 and the Intel Arc Pro B390?

A: The AMD Radeon RX 7400 uses the RDNA 3.0 architecture on a 6 nm TSMC process with the Navi 33 chip, while the Intel Arc Pro B390 uses the Xe3-LPG architecture on a 3 nm Intel process with the Panther Lake chip. The AMD part is a discrete dual-slot card, whereas the Intel part is an integrated graphics processor (IGP).

Q: How do the memory configurations compare between the two GPUs?

A: The AMD Radeon RX 7400 has 8 GB of GDDR6 memory on a 128-bit bus with 288.0 GB/s bandwidth. The Intel Arc Pro B390 uses System Shared memory with a System Dependent bandwidth, meaning it relies on the host system's main memory rather than dedicated VRAM.

Q: Which GPU has a higher transistor count and die size?

A: The AMD Radeon RX 7400 contains 13,300 million transistors on a 204 mm² die, resulting in a transistor density of 65.2M per mm². The Intel Arc Pro B390's transistor count and die size are listed as unknown in the database.

Q: What are the clock speed differences between the two cards?

A: The AMD Radeon RX 7400 runs at a 1452 MHz base clock, 2200 MHz game clock, and 2300 MHz boost clock. The Intel Arc Pro B390 has a 300 MHz base clock and a 2500 MHz boost clock, with no game clock specified.

Q: How do the compute capabilities differ in terms of shader units and TFLOPS?

A: The AMD Radeon RX 7400 has 1792 shading units and delivers 16.49 TFLOPS FP32 performance. The Intel Arc Pro B390 has 1536 shading units and delivers 7.680 TFLOPS FP32, which is less than half the AMD part's raw floating-point throughput.

Q: What is the power consumption difference?

A: The AMD Radeon RX 7400 has a TDP of 43 W and requires a 1x 6-pin power connector with a suggested 200 W PSU. The Intel Arc Pro B390 has a higher TDP of 80 W but uses no power connectors as it is an integrated processor, and no suggested PSU is listed.

Architecture Differences

The AMD Radeon RX 7400 and Intel Arc Pro B390 represent fundamentally different design philosophies. The RX 7400 is a discrete GPU built on the RDNA 3.0 architecture, using the Navi 33 chip from the Radeon RX 7000 series. It is manufactured on a 6 nm TSMC process with 13,300 million transistors packed into a 204 mm² die. The Intel Arc Pro B390, in contrast, is an integrated graphics solution based on the Xe3-LPG architecture, using the Panther Lake chip from the Arc Graphics-WM generation. It is built on a 3 nm Intel process, though its transistor count and die size are not recorded.

The memory subsystems are entirely different. The RX 7400 has dedicated 8 GB GDDR6 memory on a 128-bit bus, delivering 288.0 GB/s of bandwidth. The Arc Pro B390 uses System Shared memory, meaning it has no dedicated VRAM and its bandwidth is System Dependent on the host platform. This is a critical distinction for workloads that depend heavily on memory bandwidth.

Compute resources also differ substantially. The RX 7400 has 1792 shading units, 112 texture mapping units, and 64 raster operation units. The Arc Pro B390 has 1536 shading units, 48 TMUs, and 24 ROPs. The AMD part also has 28 ray tracing cores, while the Intel part has 12. The RX 7400 delivers 16.49 TFLOPS FP32 and 32.97 TFLOPS FP16 (2:1 ratio), while the Arc Pro B390 delivers 7.680 TFLOPS FP32 and 15.36 TFLOPS FP16 (2:1 ratio).

The physical form factors are opposites. The RX 7400 is a dual-slot card with a PCIe 4.0 x8 interface, 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs. The Arc Pro B390 is an IGP with no slot width, no power connectors, and Portable Device Dependent display outputs. The RX 7400 has a 43 W TDP with a 1x 6-pin power connector, while the Arc Pro B390 has an 80 W TDP but draws power through the host platform.

Head-to-Head Benchmarks

The database records no direct head-to-head benchmark results between the AMD Radeon RX 7400 and the Intel Arc Pro B390. The AMD card has eight individual benchmark scores, while the Intel card has no recorded benchmarks in the database. This absence of direct comparison data makes it necessary to evaluate each card against its own measured performance and the broader GPU landscape.

The RX 7400 shows a wide spread across API-specific tests. Its PassMark G3D score of 11897 is by far the strongest result, while its PassMark DirectX 12 score of 44 and DirectX 10 score of 59 are relatively low. The PassMark DirectX 9 score of 176 and DirectX 11 score of 97 indicate moderate legacy API performance. The 3DMark Steel Nomad DX12 score of 1103 provides a modern DX12 workload result, and the PassMark GPU Compute score of 5152 shows compute throughput. The PassMark G2D score of 1209 covers 2D graphics performance.

The RX 7400's average benchmark score is 2467, placing it at the 17th percentile of all GPUs in the database. Its nearest rivals are the AMD Radeon 8040S with an average score of 2440 (1.1% slower), the NVIDIA GeForce 710M at 2433 (1.4% slower), the Intel HD Graphics 610 at 2425 (1.8% slower), and the NVIDIA GeForce GT 710M at 2422 (1.9% slower). These deltas are very small, indicating that the RX 7400 sits in a tightly clustered performance band.

The Intel Arc Pro B390 has an average benchmark score of 0 and no nearest rivals listed. Its percentile rank of 50 is recorded in the database, but without actual benchmark data, it cannot be compared numerically to the RX 7400. The database shows the Arc Pro B390 as an Active production part with a release date of January 26, 2026, while the RX 7400 was released on August 7, 2025.

Specification Differences

The two GPUs differ across nearly every specification field in the database. The RX 7400 is an AMD product from the Radeon RX 7000 series, while the Arc Pro B390 is an Intel product with no series designation. The RX 7400 uses the Navi 33 chip with RDNA 3.0 architecture and the Hotpink Bonefish codename, while the Arc Pro B390 uses the Panther Lake chip with Xe3-LPG architecture and no codename listed. The RX 7400 belongs to the Navi III (RX 7000) generation, while the Arc Pro B390 belongs to the Arc Graphics-WM (Panther Lake) generation.

The manufacturing process differs: TSMC 6 nm for AMD versus Intel 3 nm for Intel. The AMD card has 13,300 million transistors on a 204 mm² die, while the Intel part has unknown transistor count and die size. Clock speeds vary significantly: the RX 7400 has a 1452 MHz base, 2200 MHz game, and 2300 MHz boost clock, while the Arc Pro B390 has a 300 MHz base and 2500 MHz boost clock with no game clock specified. Memory configuration is completely different: 8 GB GDDR6 with 288.0 GB/s bandwidth on a 128-bit bus for AMD, versus System Shared memory with System Dependent bandwidth for Intel.

Compute unit counts differ: the RX 7400 has 1792 shading units, 112 TMUs, 64 ROPs, and 28 RT cores, while the Arc Pro B390 has 1536 shading units, 48 TMUs, 24 ROPs, and 12 RT cores. Pixel rate is 147.2 GPixel/s for AMD versus 60.00 GPixel/s for Intel. Texture rate is 257.6 GTexel/s for AMD versus 120.0 GTexel/s for Intel. FP32 performance is 16.49 TFLOPS for AMD versus 7.680 TFLOPS for Intel, and FP16 is 32.97 TFLOPS versus 15.36 TFLOPS.

Power and physical specs diverge: the RX 7400 has a 43 W TDP, dual-slot width, 1x 6-pin power connector, and a suggested 200 W PSU, while the Arc Pro B390 has an 80 W TDP, IGP slot width, no power connectors, and no suggested PSU. The bus interface is PCIe 4.0 x8 for AMD versus IGP for Intel. Display outputs are 1x HDMI 2.1a plus 3x DisplayPort 2.1 for AMD versus Portable Device Dependent for Intel. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The release dates differ by roughly six months, with AMD on August 7, 2025 and Intel on January 26, 2026.

Where Each One Wins

The AMD Radeon RX 7400 wins decisively on raw compute throughput. Its FP32 performance of 16.49 TFLOPS is more than double the Arc Pro B390's 7.680 TFLOPS. The same applies to FP16 at 32.97 TFLOPS versus 15.36 TFLOPS. The RX 7400 also has far higher pixel rate at 147.2 GPixel/s versus 60.00 GPixel/s, and texture rate at 257.6 GTexel/s versus 120.0 GTexel/s. These margins indicate the AMD card is better suited for rendering workloads that stress fill rates and shading throughput.

The RX 7400's dedicated 8 GB GDDR6 memory with 288.0 GB/s bandwidth is a major advantage over the Arc Pro B390's System Shared memory. Discrete memory avoids contention with the CPU and provides predictable bandwidth, which matters for texture-heavy games and GPU compute tasks. The AMD card's 28 RT cores also outnumber the Intel part's 12 RT cores, suggesting better ray tracing throughput.

The Intel Arc Pro B390 wins on integration efficiency. As an IGP, it requires no separate power connector, no slot width, and no dedicated PSU recommendation. Its 80 W TDP is higher than the RX 7400's 43 W, but the power is drawn through the host platform, simplifying system design. The 3 nm Intel process node is more advanced than the 6 nm TSMC node used by AMD, though the database does not record the Intel part's transistor count or die size to quantify the density advantage.

The Arc Pro B390 has a higher boost clock at 2500 MHz versus 2300 MHz for the RX 7400, though its base clock is much lower at 300 MHz versus 1452 MHz. The Intel part also holds a higher percentile rank of 50 versus 17 for the AMD part, though this ranking is based on no recorded benchmarks for the Intel card, so it should not be interpreted as a performance advantage.

For legacy API performance, the RX 7400 shows strength in PassMark DirectX 9 with a score of 176, which is higher than its DirectX 11 score of 97 and DirectX 12 score of 44. This suggests the AMD card handles older titles well, while its modern API performance is comparatively weaker. The RX 7400's PassMark G3D score of 11897 is its standout result, indicating strong overall 3D performance in that specific test suite.

The RX 7400's nearest rivals all sit within 1.9% of its average score, showing that it occupies a specific performance tier. The Arc Pro B390 has no comparable data, so its competitive position cannot be established from the recorded measurements.