AMD Instinct MI300A vs Intel Arc G3 Extreme Comparison

Where Each One Wins

The AMD Instinct MI300A and Intel Arc G3 Extreme occupy opposite ends of the graphics hardware spectrum, and the data reflects that divide clearly. The MI300A is a compute-oriented accelerator built around the CDNA 3.0 architecture, with a 5 nm process and 153,000 million transistors on a 1017 mm² die. The Arc G3 Extreme is a compact integrated graphics processor built on Intel's 3 nm node with the Xe3-LPG architecture, designed for portable devices.

The MI300A wins in raw throughput categories by overwhelming margins. Its FP32 performance reaches 61.29 TFLOPS, while the Arc G3 Extreme delivers 7.680 TFLOPS. Texture rate for the MI300A is 1,915.2 GTexel/s against 120.0 GTexel/s for the Intel part. Memory bandwidth tells a similar story: the MI300A has 5.32 TB/s from 128 GB of HBM3 across an 8192 bit bus, while the Arc G3 Extreme relies on system shared memory with bandwidth that is system dependent. The MI300A uses a PCIe 5.0 x16 interface, has no display outputs, and is an OAM module with a 750 W TDP. The Arc G3 Extreme is an IGP with no power connector, no suggested PSU, and portable device dependent display outputs.

The Arc G3 Extreme wins in categories that matter for client graphics. It has 24 ROPs producing a pixel rate of 60.00 GPixel/s, while the MI300A has 0 ROPs and a 0 MPixel/s pixel rate. The Intel part supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI300A lists N/A for all three API categories. The Arc G3 Extreme also has 12 ray tracing cores, a feature entirely absent from the MI300A's specification sheet.

Architecturally, these are different products for different jobs. The MI300A is an accelerator with 14,592 shading units and 912 TMUs, no ROPs, and no display pipeline. The Arc G3 Extreme has 1,536 shading units, 48 TMUs, 24 ROPs, and 12 ray tracing cores. The MI300A's clock profile runs from a 1000 MHz base to a 2100 MHz boost, while the Arc G3 Extreme runs from 300 MHz base to 2500 MHz boost. The MI300A's memory clock is 1300 MHz with 5.2 Gbps effective, whereas the Arc G3 Extreme's memory is entirely system shared.

The production status also differs. The Arc G3 Extreme is listed as active, with a release date of 2026-05-31. The MI300A has no production status listed, with a release date of 2023-12-05. The MI300A's predecessor is Radeon Instinct, while the Arc G3 Extreme has no predecessor listed.

Architecture Differences

The two products use fundamentally different silicon. The MI300A is built on TSMC's 5 nm process with the Aqua Vanjaram chip and CDNA 3.0 architecture. It belongs to the Instinct (MIx) generation. The Arc G3 Extreme uses Intel's 3 nm process with the Panther Lake chip and Xe3-LPG architecture, belonging to the Arc Graphics-M (Panther Lake) generation.

Transistor counts highlight the scale difference. The MI300A packs 153,000 million transistors into a 1017 mm² die, yielding a transistor density of 150.4M per mm². The Arc G3 Extreme's transistor count and die size are both listed as unknown. The MI300A's memory subsystem is a dedicated HBM3 array: 128 GB capacity, 8192 bit bus, and 5.32 TB/s bandwidth. The Arc G3 Extreme has no dedicated memory; its size, type, bus width, and bandwidth are all marked system shared or system dependent.

Compute resources differ sharply. The MI300A has 14,592 shading units and 912 TMUs, with 0 ROPs. The Arc G3 Extreme has 1,536 shading units, 48 TMUs, and 24 ROPs, plus 12 ray tracing cores. The MI300A has no ray tracing cores listed and no tensor core count. The FP16 capability is also split: the Arc G3 Extreme lists 15.36 TFLOPS with a 2:1 ratio, while the MI300A's FP16 figure is null.

Clock behavior reflects their roles. The MI300A idles at 1000 MHz and boosts to 2100 MHz. The Arc G3 Extreme has a 300 MHz base and a 2500 MHz boost, a wider range typical of power-managed integrated parts. The MI300A's memory runs at 1300 MHz with 5.2 Gbps effective, a fixed-speed HBM array. The Arc G3 Extreme's memory speed is not fixed, depending entirely on the host system.

Power and physical form factor separate them further. The MI300A is rated at 750 W TDP, requires a 1150 W suggested PSU, and is an OAM Module with no power connectors. The Arc G3 Extreme is an IGP with an 80 W TDP, no power connectors, and no suggested PSU. The MI300A has no display outputs; the Arc G3 Extreme's outputs are portable device dependent. The MI300A connects via PCIe 5.0 x16, while the Arc G3 Extreme uses an IGP bus interface.

API support is another clear divider. The Arc G3 Extreme supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI300A lists N/A for DirectX, OpenGL, and Vulkan, consistent with a compute accelerator that does not target graphics rendering.

Head-to-Head Benchmarks

The recorded data contains no benchmark scores for either product. Both parts show an average benchmark score of 0, and neither has nearest rivals listed. The wins count is 0 for both sides. This means the comparison must rely entirely on the specification-level measurements in the database.

The largest measurable gaps sit in throughput. The MI300A delivers 61.29 TFLOPS of FP32, which is 8.0 times the Arc G3 Extreme's 7.680 TFLOPS. Texture rate shows a similar ratio: 1,915.2 GTexel/s versus 120.0 GTexel/s, a 15.96 times difference. The MI300A's memory bandwidth of 5.32 TB/s has no comparable figure from the Arc G3 Extreme, since its bandwidth is system dependent.

The Arc G3 Extreme counters in pixel throughput. Its 60.00 GPixel/s pixel rate stands against the MI300A's 0 MPixel/s. The Intel part also has 12 ray tracing cores, while the MI300A has none listed. The Arc G3 Extreme's FP16 figure of 15.36 TFLOPS (2:1) exceeds its own FP32 number, a common pattern for client GPUs with packed math. The MI300A has no FP16 figure in the database.

Clock speeds show the Arc G3 Extreme's higher boost at 2500 MHz versus 2100 MHz for the MI300A. The base clocks are reversed: 300 MHz for the Arc G3 Extreme and 1000 MHz for the MI300A. The MI300A's shading unit count of 14,592 is 9.5 times the Arc G3 Extreme's 1,536. TMU counts are 912 against 48, a 19 times advantage for the MI300A.

The MI300A's memory bus width of 8192 bit is a class of its own, as is its 128 GB HBM3 capacity. The Arc G3 Extreme's system shared memory cannot be quantified against that. Pixel rate is the only category where the Arc G3 Extreme posts a non-zero number and the MI300A posts zero. The same applies to ray tracing cores, where the Intel part has 12 and the AMD part has none.

Power figures tell a story of different design targets. The MI300A's 750 W TDP and 1150 W suggested PSU indicate a device meant for dedicated accelerator slots. The Arc G3 Extreme's 80 W TDP with no suggested PSU fits an integrated part that shares the host's power budget.

The Verdict

The data points to a clear split. The AMD Instinct MI300A is for compute workloads that demand massive FP32 throughput, extreme texture rates, and dedicated high-bandwidth memory. Its 61.29 TFLOPS FP32, 1,915.2 GTexel/s texture rate, 5.32 TB/s bandwidth, and 128 GB HBM3 capacity make it a server-class accelerator. It has no display outputs, no ROPs, and no graphics API support, so it is not a rendering part.

The Intel Arc G3 Extreme is for client devices that need graphics output and modern API coverage. Its 60.00 GPixel/s pixel rate, 12 ray tracing cores, and DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 support make it a functional integrated GPU. Its 7.680 TFLOPS FP32 and 120.0 GTexel/s texture rate are modest next to the MI300A, but it operates within an 80 W TDP and connects via IGP, fitting portable systems.

Users who need compute acceleration should look at the MI300A. Users who need a graphics solution with ray tracing and modern API support should look at the Arc G3 Extreme. The two products do not compete for the same socket, power budget, or workload. The database shows no benchmark overlap, no rival comparisons, and no shared performance metrics beyond the raw specifications. Each part wins where its architecture is designed to win.

FAQ

Q: Which product has higher FP32 performance?

A: The AMD Instinct MI300A delivers 61.29 TFLOPS of FP32, compared to 7.680 TFLOPS for the Intel Arc G3 Extreme.

Q: Does the Intel Arc G3 Extreme support ray tracing?

A: Yes, the Arc G3 Extreme has 12 ray tracing cores. The AMD Instinct MI300A has no ray tracing cores listed.

Q: What memory does each product use?

A: The MI300A uses 128 GB of HBM3 with an 8192 bit bus and 5.32 TB/s bandwidth. The Arc G3 Extreme uses system shared memory with system dependent bandwidth.

Q: Which product supports DirectX 12 Ultimate?

A: Only the Intel Arc G3 Extreme supports DirectX 12 Ultimate (12_2). The MI300A lists N/A for DirectX, OpenGL, and Vulkan.

Q: What are the TDP ratings for each product?

A: The MI300A has a 750 W TDP with a suggested PSU of 1150 W. The Arc G3 Extreme has an 80 W TDP with no suggested PSU listed.

Q: Which product has a higher boost clock?

A: The Intel Arc G3 Extreme boosts to 2500 MHz, while the AMD Instinct MI300A boosts to 2100 MHz. The MI300A has a higher base clock at 1000 MHz versus 300 MHz for the Arc G3 Extreme.