AMD Radeon RX 7700 vs Intel Arc B390 Comparison

Head-to-Head Benchmarks

The recorded data contains a single direct comparison between the AMD Radeon RX 7700 and the Intel Arc B390. The benchmark used is 3DMark Steel Nomad, a DirectX 12 test that stresses modern rendering workloads. The AMD Radeon RX 7700 scores 2865 points, while the Intel Arc B390 scores 1482 points. That is a difference of 93.3% in favor of the AMD part, meaning the RX 7700 nearly doubles the Arc B390 in this specific workload.

The magnitude of this gap is substantial. A 93.3% delta places the RX 7700 far ahead in raw 3D performance. The Intel Arc B390, with a score of 1482, sits at the 9th percentile among all GPUs in the database. The AMD Radeon RX 7700, by contrast, sits at the 58th percentile. That percentile gap of 49 points reflects a much wider positioning in the overall performance distribution.

The Intel Arc B390's nearest rivals in the database are all older, low-end NVIDIA parts: the GeForce GT 520MX scores 1463, the GeForce 800M scores 1460, the GeForce GT 625 OEM scores 1446, and the GeForce GT 710 scores 1443. The Arc B390 beats each of these by small margins of 1.3%, 1.5%, 2.5%, and 2.7%, respectively. This places the Arc B390 in the company of entry-level mobile and legacy desktop GPUs rather than modern discrete gaming hardware.

The AMD Radeon RX 7700, on the other hand, has nearest rivals that are far more capable. The AMD Radeon R9 370X scores 15862 on average, only 0.1% above the RX 7700's average of 15852. The AMD Radeon RX 9060 averages 16014, 1% higher. The AMD Radeon Pro W5500 averages 15679, 1.1% lower. The NVIDIA GeForce RTX 3060 Ti averages 16129, 1.7% higher. These deltas show the RX 7700 clustered with mid-range discrete GPUs, not with entry-level parts.

The average benchmark score across all recorded tests for the RX 7700 is 15852, whereas the Arc B390 has only one recorded test with an average of 1482. The RX 7700's average is more than ten times higher. This is not a close contest in the data. The single head-to-head result is consistent with the overall average scores and the percentile rankings.

Architecture Differences

The AMD Radeon RX 7700 uses the Navi 32 chip built on RDNA 3.0 architecture, with the codename Wheat Nas. It belongs to the Navi III (RX 7000) generation. The process node is 5 nm at TSMC. The chip contains 28,100 million transistors on a 346 mm² die, giving a transistor density of 81.2 million per square millimeter.

The Intel Arc B390 uses the Panther Lake chip built on Xe3-LPG architecture, with no codename recorded. It belongs to the Arc Graphics-M (Panther Lake) generation. The process node is 3 nm at Intel. Transistor count and die size are listed as unknown, and no transistor density is available.

The RX 7700 has 2560 shading units, 160 texture mapping units, and 96 raster operation units. It also includes 40 ray tracing cores. The Arc B390 has 1536 shading units, 48 TMUs, and 24 ROPs, with 12 ray tracing cores. In every compute unit category, the RX 7700 has more hardware. The shading unit count is 1.67 times higher, the TMU count is 3.33 times higher, the ROP count is 4 times higher, and the ray tracing core count is 3.33 times higher.

Clock behavior differs significantly. The RX 7700 has a base clock of 1900 MHz, a boost clock of 2459 MHz, and a game clock of 2041 MHz. Its memory runs at 2438 MHz with 19.5 Gbps effective. The Arc B390 has a base clock of 300 MHz and a boost clock of 2500 MHz. The boost clocks are similar, but the base clock is dramatically lower on the Intel part. The Arc B390's memory is system shared, so no dedicated memory clock is recorded.

Memory configuration is fundamentally different. The RX 7700 has 16 GB of GDDR6 on a 256-bit bus, providing 624.1 GB/s of bandwidth. The Arc B390 uses system shared memory with a system dependent bandwidth. This means the Intel part relies on the host system's memory subsystem, which is a major architectural divergence.

The RX 7700 has a TDP of 200 W and requires 2x 8-pin power connectors, with a suggested PSU of 550 W. It is a dual-slot card. The Arc B390 has a TDP of 80 W, no power connectors, and is an integrated graphics processor (IGP). No suggested PSU is listed.

The RX 7700 connects via PCIe 4.0 x16. The Arc B390 uses an IGP bus interface, meaning it is integrated into a processor rather than being a discrete card. Display outputs for the RX 7700 include 1x HDMI 2.1a, 2x DisplayPort 2.1, and 1x USB Type-C. The Arc B390's display outputs are listed as portable device dependent.

Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RX 7700 delivers FP32 performance of 25.18 TFLOPS and FP16 performance of 25.18 TFLOPS at a 1:1 ratio. The Arc B390 delivers 7.680 TFLOPS FP32 and 15.36 TFLOPS FP16 at a 2:1 ratio. The pixel rate for the RX 7700 is 236.1 GPixel/s, while the Arc B390 manages 60.00 GPixel/s. Texture rates are 393.4 GTexel/s versus 120.0 GTexel/s.

FAQ

Q: Which GPU has the higher boost clock?

A: The Intel Arc B390 has a boost clock of 2500 MHz, which is slightly higher than the AMD Radeon RX 7700's boost clock of 2459 MHz.

Q: How much faster is the AMD Radeon RX 7700 in the only shared benchmark?

A: In 3DMark Steel Nomad DX12, the RX 7700 scores 2865 versus 1482 for the Arc B390, a delta of 93.3%.

Q: What is the memory bandwidth of each GPU?

A: The RX 7700 has 624.1 GB/s from 16 GB of GDDR6 on a 256-bit bus. The Arc B390 uses system shared memory with system dependent bandwidth.

Q: Which GPU has more ray tracing cores?

A: The RX 7700 has 40 ray tracing cores, while the Arc B390 has 12.

Q: What are the power requirements for each?

A: The RX 7700 has a 200 W TDP and requires 2x 8-pin power connectors with a 550 W suggested PSU. The Arc B390 has an 80 W TDP and no power connectors.

Q: Where does each GPU rank among all GPUs in the database?

A: The RX 7700 is at the 58th percentile, while the Arc B390 is at the 9th percentile.

Specification Differences

The process node differs: the RX 7700 uses 5 nm at TSMC, while the Arc B390 uses 3 nm at Intel. Transistor count is 28,100 million for AMD, unknown for Intel. Die size is 346 mm² for AMD, unknown for Intel. Transistor density is 81.2M per mm² for AMD, not available for Intel.

Base clock: 1900 MHz for the RX 7700 versus 300 MHz for the Arc B390. Game clock: 2041 MHz for the RX 7700, not applicable for the Arc B390. Memory clock: 2438 MHz with 19.5 Gbps effective for AMD, system shared for Intel.

Memory size: 16 GB GDDR6 for AMD, system shared for Intel. Bus width: 256 bit versus system shared. Bandwidth: 624.1 GB/s versus system dependent.

Shading units: 2560 versus 1536. TMUs: 160 versus 48. ROPs: 96 versus 24. Ray tracing cores: 40 versus 12.

Pixel rate: 236.1 GPixel/s versus 60.00 GPixel/s. Texture rate: 393.4 GTexel/s versus 120.0 GTexel/s. FP32: 25.18 TFLOPS versus 7.680 TFLOPS. FP16: 25.18 TFLOPS (1:1) versus 15.36 TFLOPS (2:1).

TDP: 200 W versus 80 W. Slot width: dual-slot versus IGP. Power connectors: 2x 8-pin versus none. Suggested PSU: 550 W versus none listed. Bus interface: PCIe 4.0 x16 versus IGP.

Display outputs: 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C for AMD; portable device dependent for Intel. Dimensions: 267 mm length, 135 mm height, 50 mm width for AMD; none recorded for Intel.

Release dates differ: the RX 7700 was released on 2025-09-17, the Arc B390 on 2026-01-26. The RX 7700 has a predecessor (Navi II) and successor (Navi IV) recorded; the Arc B390 has neither.

The Verdict

The data points to a clear separation in performance class. The AMD Radeon RX 7700 wins the only head-to-head benchmark by 93.3%, holds a much higher average benchmark score, and ranks at the 58th percentile versus the 9th percentile for the Intel Arc B390. The RX 7700's nearest rivals include the NVIDIA GeForce RTX 3060 Ti, which averages 16129, while the Arc B390's nearest rivals are legacy NVIDIA parts like the GeForce GT 710. This is not a subtle difference.

The Arc B390 is an integrated graphics solution with an 80 W TDP, no power connectors, and system shared memory. Its compute resources are limited: 1536 shading units, 48 TMUs, 24 ROPs, and 12 ray tracing cores. The RX 7700 is a discrete, dual-slot card with a 200 W TDP, 16 GB of dedicated GDDR6, and roughly 1.67 times more shading units, 3.33 times more TMUs, 4 times more ROPs, and 3.33 times more ray tracing cores.

The RX 7700 also leads in raw throughput metrics. Its FP32 performance of 25.18 TFLOPS is 3.28 times higher than the Arc B390's 7.680 TFLOPS. Its pixel rate is 3.94 times higher, and its texture rate is 3.28 times higher. Memory bandwidth cannot be compared directly because the Arc B390 uses system shared memory, but the RX 7700's 624.1 GB/s is a fixed, dedicated figure.

The Arc B390 does have one advantage in the recorded data: its boost clock of 2500 MHz is marginally higher than the RX 7700's 2459 MHz. It also uses a newer 3 nm process node from Intel, compared to the 5 nm TSMC node for AMD, and it consumes far less power at 80 W versus 200 W. For integrated graphics, the Arc B390's performance profile is modest, but it is positioned as a low-power integrated solution.

For users selecting a GPU based on the data, the RX 7700 is the choice for any workload involving the recorded 3D benchmark. The Arc B390's single test result places it near entry-level discrete GPUs from a decade ago, such as the GeForce GT 710 and GT 520MX. The RX 7700, by contrast, operates in the company of the RTX 3060 Ti and RX 9060.

Where Each One Wins

The AMD Radeon RX 7700 wins the only direct comparison, and it wins across nearly every recorded metric. It takes the 3DMark Steel Nomad DX12 test, the average benchmark score, the percentile ranking, shading units, TMUs, ROPs, ray tracing cores, pixel rate, texture rate, FP32 throughput, FP16 throughput, memory capacity, memory bus width, and dedicated memory bandwidth. It is also the only one of the two with a discrete card form factor, PCIe 4.0 x16 interface, and a full set of display outputs including HDMI 2.1a, DisplayPort 2.1, and USB Type-C.

The Intel Arc B390 claims a narrow set of wins in the recorded specifications. Its boost clock of 2500 MHz exceeds the RX 7700's 2459 MHz. Its process node is smaller at 3 nm compared to 5 nm. Its TDP is 80 W versus 200 W, and it requires no power connectors, making it suitable for systems without discrete GPU power delivery. It is an IGP, meaning it is integrated into the processor package, which eliminates the need for a separate card. Its FP16 ratio is 2:1, allowing it to reach 15.36 TFLOPS from its 7.680 TFLOPS FP32 baseline, whereas the RX 7700 runs FP16 at a 1:1 ratio.

The use-case split follows directly from these differences. The RX 7700 targets discrete 3D rendering, high-resolution texture workloads, and any scenario requiring sustained dedicated memory bandwidth. The Arc B390 targets low-power integrated systems where the 80 W TDP, lack of power connectors, and portable device dependent display outputs are acceptable constraints. The recorded benchmark data shows the RX 7700 ahead in the only measured 3D test, and the architecture data confirms a much larger allocation of compute resources on the AMD side.