AMD Radeon RX 7700 XT vs Intel Arc B390 Comparison

Head-to-Head Benchmarks

The recorded database contains a single common benchmark between these two GPUs: the 3DMark Steel Nomad DX12 test. The AMD Radeon RX 7700 XT posts a score of 3316, while the Intel Arc B390 manages 1482. That works out to a 123.8% advantage for the AMD part, which is a decisive margin by any standard. A result that large does not reflect a near-miss or a driver-optimization gap; it indicates a fundamentally different performance class.

For context, the RX 7700 XT’s average benchmark score across all recorded tests is 22549, placing it in the 67th percentile of all GPUs in the database. The Arc B390’s average score is 1482, which lands it in the 9th percentile. The percentile gap is stark: the AMD card sits well above the median GPU, while the Intel part sits near the very bottom of the entire distribution. The RX 7700 XT wins the only head-to-head test, giving it a 1-0 record against the Arc B390.

Looking at the nearest rivals in the database clarifies where each card actually competes. The RX 7700 XT sits within a tight cluster of NVIDIA and AMD parts. Its 22549 average score is 0.5% above the NVIDIA GeForce RTX 5060 Mobile (22435), 0.8% below the RTX 4060 Mobile (22729), 1.5% below the RTX 2080 (22895), and 1.7% above the AMD Radeon RX 5700 (22170). Those deltas are all under two percent, which means the RX 7700 XT is effectively trading blows with a set of well-known desktop and mobile GPUs from the previous generation.

The Arc B390, by contrast, has nearest rivals that are ancient entry-level parts. Its 1482 average score is 1.3% above the NVIDIA GeForce GT 520MX (1463), 1.5% above the GeForce 800M (1460), 2.5% above the GT 625 OEM (1446), and 2.7% above the GT 710 (1443). The delta margins here are similarly tight, but the absolute level is completely different. The Intel part is competing with GPUs that are over a decade old in some cases, not with modern discrete graphics cards.

The 3DMark Steel Nomad result reinforces this. The RX 7700 XT’s 3316 score is more than double the Arc B390’s 1482. There is no benchmark category where the Intel part closes the gap. The data shows a single clear winner across every measurable axis.

The Verdict

The benchmark data supports only one conclusion: the AMD Radeon RX 7700 XT is the vastly faster GPU. It wins the sole recorded head-to-head test by 123.8%, holds an average score 15.2 times higher than the Intel part (22549 versus 1482), and sits in the 67th percentile of all GPUs versus the 9th percentile for the Arc B390. Anyone choosing between these two based on performance metrics should select the AMD card without hesitation.

The Intel Arc B390 is an integrated graphics processor with an 80 W TDP, no dedicated power connectors, and system-shared memory. Its benchmark scores place it alongside entry-level mobile GPUs from over a decade ago. It is not a competitor to a 245 W discrete graphics card with 12 GB of dedicated GDDR6 memory and a 192-bit memory bus. The data does not suggest any scenario where the Intel part outperforms the AMD card in raw graphics throughput.

That said, the Arc B390 may serve a different purpose. Its 80 W TDP, integrated form factor, and lack of external power requirements make it suitable for portable devices where the RX 7700 XT physically cannot fit. But as a graphics performance comparison, the verdict is unambiguous: the RX 7700 XT wins every recorded metric by a wide margin.

Architecture Differences

The two GPUs come from different manufacturers, use different process nodes, and implement different architectures. The AMD Radeon RX 7700 XT uses the Navi 32 chip on a 5 nm TSMC process, while the Intel Arc B390 uses the Panther Lake chip on a 3 nm Intel process. The AMD part is built on the RDNA 3.0 architecture with the Wheat Nas codename, part of the Navi III (RX 7000) generation. The Intel part uses the Xe3-LPG architecture and belongs to the Arc Graphics-M (Panther Lake) generation.

The transistor counts differ dramatically. The RX 7700 XT packs 28,100 million transistors on a 346 mm² die, giving a transistor density of 81.2M per mm². The Arc B390’s transistor count and die size are listed as unknown in the database, so no direct density comparison is possible. The AMD die is a large, power-hungry discrete GPU, while the Intel chip is an integrated processor with no separate die dimensions recorded.

Memory configurations are fundamentally different. The RX 7700 XT has 12 GB of GDDR6 on a 192-bit bus, delivering 432.0 GB/s of bandwidth. The Arc B390 uses system-shared memory with a system-dependent bandwidth. That means the Intel part’s memory performance depends entirely on the host system’s RAM, whereas the AMD card has its own dedicated high-speed memory pool.

Compute resources also differ substantially. The RX 7700 XT has 3456 shading units, 216 texture mapping units, 96 render output units, and 54 ray tracing cores. The Arc B390 has 1536 shading units, 48 TMUs, 24 ROPs, and 12 RT cores. The AMD card has more than double the shading units, 4.5 times the TMUs, 4 times the ROPs, and 4.5 times the RT cores.

Clock speeds tell a mixed story. The RX 7700 XT has a base clock of 1435 MHz, a boost clock of 2544 MHz, and a game clock of 2171 MHz. The Arc B390 has a base clock of just 300 MHz but a boost clock of 2500 MHz. The Intel part’s boost clock is close to the AMD card’s, but its base clock is dramatically lower, and its much smaller compute resource count means clock speed alone cannot compensate.

Pixel and texture rates reflect the resource disparity. The RX 7700 XT achieves 244.2 GPixel/s and 549.5 GTexel/s. The Arc B390 manages 60.00 GPixel/s and 120.0 GTexel/s. The AMD card is roughly 4.1 times faster in pixel throughput and 4.6 times faster in texture throughput.

Floating point performance follows the same pattern. The RX 7700 XT delivers 35.17 TFLOPS for FP32 and 35.17 TFLOPS for FP16 (1:1 ratio). The Arc B390 delivers 7.680 TFLOPS for FP32 and 15.36 TFLOPS for FP16 (2:1 ratio). The AMD card has 4.6 times the FP32 throughput and 2.3 times the FP16 throughput.

Power and physical specifications differ completely. The RX 7700 XT has a 245 W TDP, is dual-slot, uses 2x 8-pin power connectors, and requires a 550 W suggested PSU. The Arc B390 has an 80 W TDP, is an integrated graphics processor (IGP), uses no power connectors, and has no suggested PSU. The AMD card measures 267 mm in length, 135 mm in height, and 50 mm in width. The Intel part has no recorded dimensions because it is integrated into a portable device.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RX 7700 XT uses a PCIe 4.0 x16 bus interface, while the Arc B390 uses an IGP bus interface. Display outputs differ too: the AMD card provides 1x HDMI 2.1a, 2x DisplayPort 2.1, and 1x USB Type-C, while the Intel part’s display outputs are listed as portable device dependent.

The RX 7700 XT was released on 2023-09-05 and had a launch MSRP of 449 USD. The Arc B390 was released on 2026-01-26 and has no recorded launch MSRP. The AMD card lists its predecessor as Navi II and successor as Navi IV. The Intel part has no recorded predecessor or successor.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 7700 XT has an average benchmark score of 22549 across all recorded tests. The Intel Arc B390 has an average score of 1482 from its single recorded benchmark.

Q: How much faster is the RX 7700 XT in the 3DMark Steel Nomad DX12 test?

A: The RX 7700 XT scores 3316, while the Arc B390 scores 1482. This gives the AMD card a 123.8% advantage in that specific test.

Q: What is the memory configuration difference?

A: The RX 7700 XT has 12 GB of dedicated GDDR6 memory on a 192-bit bus with 432.0 GB/s bandwidth. The Arc B390 uses system-shared memory with system-dependent bandwidth.

Q: Which GPU has more shading units?

A: The RX 7700 XT has 3456 shading units. The Arc B390 has 1536 shading units, which is less than half the AMD card’s count.

Q: What are the TDP differences?

A: The RX 7700 XT has a 245 W TDP and requires 2x 8-pin power connectors with a 550 W suggested PSU. The Arc B390 has an 80 W TDP and uses no power connectors.

Q: When was each GPU released?

A: The RX 7700 XT was released on 2023-09-05 with a launch MSRP of 449 USD. The Arc B390 was released on 2026-01-26 with no recorded launch MSRP.

Where Each One Wins

The AMD Radeon RX 7700 XT wins in every recorded performance category. It has a higher 3DMark Steel Nomad score (3316 versus 1482), a higher average benchmark score (22549 versus 1482), a higher percentile ranking (67th versus 9th), more shading units (3456 versus 1536), more TMUs (216 versus 48), more ROPs (96 versus 24), more RT cores (54 versus 12), higher pixel rate (244.2 GPixel/s versus 60.00 GPixel/s), higher texture rate (549.5 GTexel/s versus 120.0 GTexel/s), higher FP32 throughput (35.17 TFLOPS versus 7.680 TFLOPS), and higher FP16 throughput (35.17 TFLOPS versus 15.36 TFLOPS). It also has dedicated 12 GB GDDR6 memory versus system-shared memory, a wider 192-bit bus, and significantly higher bandwidth at 432.0 GB/s.

The Intel Arc B390 wins in efficiency and form factor metrics. It has a dramatically lower TDP at 80 W versus 245 W. It requires no power connectors, no dedicated PSU, and fits as an IGP rather than a dual-slot expansion card. Its base clock of 300 MHz is lower, but its boost clock of 2500 MHz is close to the RX 7700 XT’s 2544 MHz. The Arc B390 also uses a smaller 3 nm process node versus the AMD card’s 5 nm node, which contributes to its lower power draw.

For a desktop system where performance is the priority, the RX 7700 XT is the only choice. For a portable device where power consumption, physical space, and integrated operation matter more than raw graphics throughput, the Arc B390 has a role. But the recorded data shows no benchmark where the Intel part beats the AMD card. The RX 7700 XT wins the head-to-head test, wins every architectural comparison, and occupies a completely different performance tier.