AMD Radeon RX 7400 OEM vs Intel Arc G3 Comparison

FAQ

Q: What are the core architectural differences between the AMD Radeon RX 7400 OEM and the Intel Arc G3?

A: The AMD part uses the Navi 33 chip with RDNA 3.0 architecture on a 6 nm TSMC process, while the Intel Arc G3 uses the Panther Lake chip with Xe3-LPG architecture on a 3 nm Intel process. The AMD chip has 13,300 million transistors on a 204 mm² die, while Intel does not disclose transistor count or die size for the G3.

Q: How do the memory configurations compare?

A: The RX 7400 OEM has 8 GB of GDDR6 memory on a 128-bit bus with 172.8 GB/s bandwidth. The Arc G3 uses System Shared memory with System Dependent bandwidth, meaning it relies on the host system's main memory rather than dedicated VRAM.

Q: Which GPU has higher raw compute throughput?

A: The RX 7400 OEM delivers 7.885 TFLOPS FP32 performance, which is 28.3% higher than the Arc G3's 6.144 TFLOPS. However, the Intel part achieves 12.29 TFLOPS FP16 (2:1 ratio), substantially higher than AMD's 7.885 TFLOPS FP16 (1:1 ratio).

Q: What are the power requirements for each card?

A: The RX 7400 OEM has a 55 W TDP and requires a 1x 6-pin power connector with a 250 W suggested PSU. The Arc G3 has a 25 W TDP, uses no power connectors, and is an integrated graphics processor (IGP) with no suggested PSU listed.

Q: How do the display outputs differ?

A: The RX 7400 OEM provides 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs. The Arc G3's display outputs are listed as "Portable Device Dependent," reflecting its integrated nature in mobile or compact systems.

Q: What is the release timeline for these products?

A: The RX 7400 OEM was released on August 7, 2025, while the Arc G3 has a release date of May 31, 2026. The Arc G3 is listed as Active in production status, whereas the AMD card's production status is not specified.

Where Each One Wins

The AMD Radeon RX 7400 OEM dominates in traditional desktop graphics workloads. Its dedicated 8 GB GDDR6 memory with 172.8 GB/s bandwidth gives it a clear advantage in texture-heavy scenarios and high-resolution rendering. The card's 1792 shading units, 112 TMUs, and 64 ROPs provide substantial geometry processing and pixel fill capabilities. The 70.40 GPixel/s pixel rate and 123.2 GTexel/s texture rate indicate strong performance in rasterization-heavy tasks.

The Intel Arc G3 wins in power efficiency and integration scenarios. With a 25 W TDP compared to AMD's 55 W, the Intel part consumes less than half the power. Its FP16 throughput of 12.29 TFLOPS (2:1 ratio) is 55.9% higher than AMD's FP16 output, making it potentially better suited for workloads that leverage half-precision math, such as certain AI inference or compute tasks. The Arc G3's integration as an IGP means it fits into portable devices with no additional power connectors or slot space.

The RX 7400 OEM wins on clock speed stability with a boost clock of 1100 MHz versus the Arc G3's 2400 MHz boost, though the AMD card's base clock of 330 MHz is higher than Intel's 300 MHz base. The AMD card supports PCIe 4.0 x8 interface, suitable for desktop motherboards, while the Arc G3 uses an IGP bus interface, meaning it is permanently attached to the processor package.

Architecture Differences

The AMD Radeon RX 7400 OEM is built on RDNA 3.0 architecture, a mature discrete GPU design from the Radeon RX 7000 series. The Navi 33 chip contains 13,300 million transistors packed into a 204 mm² die, yielding a transistor density of 65.2M per mm². The 6 nm TSMC process node provides a balance between density and power efficiency. The architecture implements 28 ray tracing cores, enabling hardware-accelerated ray tracing workloads.

The Intel Arc G3 uses Xe3-LPG architecture from the Arc Graphics-M generation based on Panther Lake. This is a 3 nm Intel process design, though Intel does not disclose transistor counts or die dimensions. The G3 integrates 10 ray tracing cores and 1280 shading units. The 2:1 FP16 ratio indicates a different compute pipeline design compared to AMD's 1:1 ratio, suggesting Intel optimized for half-precision workloads while AMD maintains symmetric FP32/FP16 throughput.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 API levels, ensuring modern game and application compatibility across both platforms. The AMD card is a discrete solution requiring a PCIe slot and external power, while the Arc G3 is an integrated graphics processor designed for portable devices, eliminating the need for separate memory or power delivery components.

The RX 7400 OEM's codename "Hotpink Bonefish" reflects AMD's internal naming scheme, while the Arc G3's codename is not listed. The AMD card has a clearly defined predecessor (Navi II) and successor (Navi IV), while the Intel part lists neither.

Specification Differences

| Specification | AMD Radeon RX 7400 OEM | Intel Arc G3 |

|---|---|---|

| Process Node | 6 nm (TSMC) | 3 nm (Intel) |

| Transistors | 13,300 million | Unknown |

| Die Size | 204 mm² | Unknown |

| Base Clock | 330 MHz | 300 MHz |

| Boost Clock | 1100 MHz | 2400 MHz |

| Memory | 8 GB GDDR6 | System Shared |

| Memory Bus | 128 bit | System Shared |

| Memory Bandwidth | 172.8 GB/s | System Dependent |

| Shading Units | 1792 | 1280 |

| TMUs | 112 | 40 |

| ROPs | 64 | 20 |

| Ray Tracing Cores | 28 | 10 |

| Pixel Rate | 70.40 GPixel/s | 48.00 GPixel/s |

| Texture Rate | 123.2 GTexel/s | 96.00 GTexel/s |

| FP32 | 7.885 TFLOPS | 6.144 TFLOPS |

| FP16 | 7.885 TFLOPS (1:1) | 12.29 TFLOPS (2:1) |

| TDP | 55 W | 25 W |

| Slot Width | Single-slot | IGP |

| Power Connectors | 1x 6-pin | None |

| Suggested PSU | 250 W | None |

| Bus Interface | PCIe 4.0 x8 | IGP |

| Display Outputs | 1x HDMI 2.1a, 3x DisplayPort 2.1 | Portable Device Dependent |

| Release Date | August 7, 2025 | May 31, 2026 |

The RX 7400 OEM leads in nearly every raw specification category except for boost clock, FP16 throughput, and power consumption. The Arc G3's boost clock is 118.2% higher than AMD's, and its FP16 output exceeds AMD's by 55.9%, but the AMD card's dedicated memory and higher core counts provide superior rasterization performance.

Head-to-Head Benchmarks

The recorded data contains no direct head-to-head benchmark results between these two GPUs, and neither card has an average benchmark score or nearest rivals listed. However, the specification differences allow for clear performance projections based on the measured hardware parameters.

The most significant performance gap appears in pixel fill rate. The RX 7400 OEM delivers 70.40 GPixel/s, which is 46.7% higher than the Arc G3's 48.00 GPixel/s. This translates directly to better performance in high-resolution rendering and multi-sample anti-aliasing scenarios. Similarly, the AMD card's texture rate of 123.2 GTexel/s exceeds the Intel part's 96.00 GTexel/s by 28.3%, indicating faster texture mapping and filtering operations.

In FP32 compute, the RX 7400 OEM's 7.885 TFLOPS outperforms the Arc G3's 6.144 TFLOPS by 28.3%. This advantage applies to most traditional game rendering pipelines, physics calculations, and general-purpose GPU compute tasks that rely on single-precision floating-point operations.

The Arc G3's FP16 advantage is substantial. At 12.29 TFLOPS (2:1 ratio), it outperforms the RX 7400 OEM's 7.885 TFLOPS by 55.9%. This suggests the Intel part may excel in workloads specifically optimized for half-precision, such as certain machine learning inference models or shader-based compute effects that can utilize FP16 arithmetic.

The RX 7400 OEM's shading unit advantage is notable: 1792 versus 1280, a 40% difference. Combined with 112 TMUs versus 40 and 64 ROPs versus 20, the AMD card has significantly more parallel execution resources. The ray tracing core count also favors AMD at 28 versus 10, potentially providing better hardware-accelerated ray tracing performance in supported titles.

Memory bandwidth presents a stark contrast. The RX 7400 OEM's dedicated 172.8 GB/s GDDR6 bandwidth ensures predictable performance across all workloads. The Arc G3's System Shared memory with System Dependent bandwidth means its performance varies based on the host system's memory configuration, memory type, and bus width, making direct comparisons unreliable in this category.

The power efficiency picture is mixed. The Arc G3 consumes 25 W versus the RX 7400 OEM's 55 W, giving Intel a 54.5% power reduction. However, the AMD card delivers 0.143 TFLOPS per watt in FP32 (7.885 TFLOPS divided by 55 W), while the Intel part achieves 0.246 TFLOPS per watt (6.144 TFLOPS divided by 25 W), making the Arc G3 72% more power-efficient in FP32 compute per watt.

Clock speeds reveal different design philosophies. The Arc G3's 2400 MHz boost clock is significantly higher than the RX 7400 OEM's 1100 MHz, indicating Intel's architecture relies on higher clock frequencies to compensate for fewer execution units. The AMD card's lower clock with more cores represents a wider, more parallel design approach.

Both cards support identical API feature levels (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4), ensuring software compatibility does not differentiate them. The RX 7400 OEM's physical dimensions of 167 mm length (6.6 inches) and single-slot design make it suitable for compact desktop builds, while the Arc G3's IGP form factor fits exclusively in mobile or embedded systems with no upgrade path.