AMD Instinct MI300X vs Intel Arc G3 Extreme Comparison

Head-to-Head Benchmarks

The recorded database contains only one benchmark score for the AMD Instinct MI300X, while the Intel Arc G3 Extreme has no benchmark entries at all. This makes a direct numerical comparison impossible, but the available data still provides meaningful positioning information.

The AMD Instinct MI300X achieves a Geekbench OpenCL score of 317,994. This places it in the 100th percentile of all GPUs in the database, meaning it outperforms every other recorded graphics processor. Its nearest rival, the NVIDIA B200, scores 345,482, which is 8% higher than the MI300X, while the NVIDIA H200 NVL scores 334,891, which is 5% higher. On the other side, the MI300X sits comfortably ahead of the NVIDIA L40S, which scores 295,763, a 7.5% gap, and the NVIDIA RTX 6000 Ada Generation, which scores 287,237, a 10.7% advantage for the AMD part.

The Intel Arc G3 Extreme, by contrast, has no recorded benchmark scores in the database. Its percentile rank is listed as 50, which indicates a mid-pack position among all GPUs, but without any measured performance data, the exact magnitude of its capabilities remains unquantified. The head-to-head comparison table is empty, and the win counts for both products are zero. This means the database currently cannot confirm any specific performance advantage for either product in a direct matchup.

The MI300X's raw specifications suggest why it sits at the top of the percentile ranking. It delivers 81.72 TFLOPS of FP32 compute and the same figure for FP16 at a 1:1 ratio. Its texture rate reaches 2,553.6 GTexel/s, and memory bandwidth measures 5.32 TB/s across an 8192-bit bus. These figures dwarf the Arc G3 Extreme's specifications, which show 7.680 TFLOPS FP32, 15.36 TFLOPS FP16 at a 2:1 ratio, 120.0 GTexel/s texture rate, and system-shared memory with bandwidth listed as system dependent.

The Arc G3 Extreme does show a higher boost clock, 2500 MHz versus 2100 MHz for the MI300X, and it supports a broader set of graphics APIs including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The MI300X lists no supported APIs, which is consistent with its positioning as a compute accelerator rather than a rendering device.

The Verdict

The data supports a clear separation of roles. The AMD Instinct MI300X is a compute-focused accelerator with a top-tier benchmark score, 317,994, placing it in the 100th percentile. It is designed for workloads that demand massive parallel throughput, with 19,456 shading units, 1,216 texture mapping units, and 192 GB of HBM3 memory. Its nearest rivals in the database are all NVIDIA data center products, and the score gaps are narrow: 8% behind the B200, 5% behind the H200 NVL, but 7.5% ahead of the L40S and 10.7% ahead of the RTX 6000 Ada Generation.

The Intel Arc G3 Extreme, on the other hand, has no measured scores, so the database cannot confirm its performance level. Its specification sheet indicates a much lower compute envelope, with 1,536 shading units, 48 TMUs, and 24 ROPs, along with a 7.680 TFLOPS FP32 peak. It also carries 12 ray tracing cores, which the MI300X does not list at all. The Arc G3 Extreme is an integrated graphics processor (IGP) with a 80 W TDP, while the MI300X is an OAM module with a 750 W TDP. These are different product classes with different intended use cases.

Users who need maximum raw compute throughput, as measured by OpenCL, should look to the MI300X. Users who need a low-power integrated GPU with modern graphics API support should look to the Arc G3 Extreme, but they should note that no benchmark data exists yet to validate its performance claims.

FAQ

Q: What is the Geekbench OpenCL score for the AMD Instinct MI300X?

A: The MI300X scores 317,994 in Geekbench OpenCL, placing it in the 100th percentile of all GPUs in the database.

Q: Does the Intel Arc G3 Extreme have any recorded benchmark scores?

A: No. The database lists no benchmark entries for the Arc G3 Extreme, and its average benchmark score is 0.

Q: How does the MI300X compare to its nearest rivals?

A: The NVIDIA B200 scores 345,482 (8% higher), the NVIDIA H200 NVL scores 334,891 (5% higher), the NVIDIA L40S scores 295,763 (7.5% lower), and the NVIDIA RTX 6000 Ada Generation scores 287,237 (10.7% lower).

Q: What is the memory configuration of each product?

A: The MI300X uses 192 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 lists DirectX 12 Ultimate (12_2) support, along with OpenGL 4.6 and Vulkan 1.4. The MI300X lists no graphics APIs.

Q: What are the power requirements?

A: The MI300X has a TDP of 750 W and requires a 1150 W suggested PSU. The Arc G3 Extreme has a TDP of 80 W and lists no suggested PSU.

Specification Differences

The two products differ across nearly every measured specification. The MI300X uses a 5 nm TSMC process, while the Arc G3 Extreme uses a 3 nm Intel process. The MI300X contains 153,000 million transistors on a 1017 mm² die, while the Arc G3 Extreme lists unknown transistor count and die size.

Clock speeds differ significantly. The MI300X has a base clock of 1000 MHz and a boost clock of 2100 MHz. The Arc G3 Extreme has a base clock of 300 MHz and a boost clock of 2500 MHz. Memory clocks also differ: the MI300X runs at 1300 MHz with 5.2 Gbps effective, while the Arc G3 Extreme uses system-shared memory.

Compute unit counts show a wide gap. The MI300X has 19,456 shading units, 1,216 TMUs, and 0 ROPs. The Arc G3 Extreme has 1,536 shading units, 48 TMUs, and 24 ROPs. The MI300X lists no ray tracing cores, while the Arc G3 Extreme includes 12. Pixel rate for the MI300X is 0 MPixel/s, while the Arc G3 Extreme reaches 60.00 GPixel/s. Texture rates are 2,553.6 GTexel/s versus 120.0 GTexel/s.

FP32 performance is 81.72 TFLOPS for the MI300X versus 7.680 TFLOPS for the Arc G3 Extreme. FP16 performance is 81.72 TFLOPS at a 1:1 ratio for the MI300X versus 15.36 TFLOPS at a 2:1 ratio for the Arc G3 Extreme. Power consumption is 750 W versus 80 W. The MI300X uses an OAM Module slot width with PCIe 5.0 x16 bus interface, while the Arc G3 Extreme is an IGP with no bus interface beyond the integrated graphics path. Display outputs differ as well: the MI300X has no outputs, while the Arc G3 Extreme lists portable device dependent outputs.

Architecture Differences

The MI300X is built on AMD's CDNA 3.0 architecture and uses the Aqua Vanjaram chip. It belongs to the Instinct (MIx) generation, with a predecessor listed as Radeon Instinct. The Arc G3 Extreme uses Intel's Xe3-LPG architecture on the Panther Lake chip, belonging to the Arc Graphics-M (Panther Lake) generation.

The MI300X is manufactured by TSMC on a 5 nm process, while the Arc G3 Extreme is manufactured by Intel on a 3 nm process. The MI300X has a transistor density of 150.4M per mm², while the Arc G3 Extreme has no density figure listed. The MI300X's memory subsystem is dedicated HBM3 with 192 GB capacity, while the Arc G3 Extreme relies entirely on system-shared memory.

API support represents a major architectural difference. The MI300X lists no DirectX, OpenGL, or Vulkan support, reflecting its compute-only orientation. The Arc G3 Extreme supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, making it suitable for graphics rendering workloads. The Arc G3 Extreme also includes 12 ray tracing cores, a feature entirely absent from the MI300X's specification sheet.

The MI300X has no ROPs and a pixel rate of 0 MPixel/s, confirming it is not designed for rasterization. The Arc G3 Extreme has 24 ROPs and a pixel rate of 60.00 GPixel/s, indicating it can handle display output and rasterization tasks. Production status also differs: the Arc G3 Extreme is listed as active, while the MI300X has no production status recorded.

Where Each One Wins

The AMD Instinct MI300X wins in compute throughput. Its FP32 performance of 81.72 TFLOPS is more than ten times the Arc G3 Extreme's 7.680 TFLOPS. Its texture rate of 2,553.6 GTexel/s is over twenty times higher than the Arc G3 Extreme's 120.0 GTexel/s. The MI300X also dominates memory capacity with 192 GB of HBM3 versus system-shared memory, and its 5.32 TB/s bandwidth is a fixed specification rather than a system-dependent variable.

The MI300X wins in benchmark positioning. Its Geekbench OpenCL score of 317,994 places it in the 100th percentile, while the Arc G3 Extreme sits in the 50th percentile with no measured score. The MI300X also has a higher base clock, 1000 MHz versus 300 MHz, and a higher transistor count, 153,000 million versus unknown for the Arc G3 Extreme.

The Intel Arc G3 Extreme wins in power efficiency on paper. Its 80 W TDP is dramatically lower than the MI300X's 750 W, making it suitable for portable devices where power draw is constrained. It also wins in boost clock, reaching 2500 MHz versus 2100 MHz for the MI300X.

The Arc G3 Extreme wins in graphics capability. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the MI300X lists no APIs. It includes 12 ray tracing cores and 24 ROPs, enabling rendering workloads that the MI300X cannot handle. Its pixel rate of 60.00 GPixel/s confirms rasterization ability, while the MI300X lists 0 MPixel/s.

The Arc G3 Extreme wins in integration. It is an IGP with no external power connectors and a bus interface listed simply as IGP. Display outputs are portable device dependent, meaning it can drive screens on mobile hardware. The MI300X is an OAM module with no display outputs and PCIe 5.0 x16 connectivity.

The MI300X wins in memory bandwidth and capacity. Its 8192-bit bus width and 5.32 TB/s bandwidth are fixed specifications, while the Arc G3 Extreme's system-shared memory has system-dependent bandwidth. The MI300X also supports a 1150 W suggested PSU, indicating it is designed for server-class power delivery, while the Arc G3 Extreme lists no PSU requirement.

The Arc G3 Extreme wins in FP16 efficiency. Its FP16 performance of 15.36 TFLOPS at a 2:1 ratio doubles its FP32 output, while the MI300X delivers identical FP16 and FP32 at 81.72 TFLOPS. This makes the Arc G3 Extreme relatively stronger in workloads that can exploit FP16 arithmetic, though its absolute FP16 throughput remains far below the MI300X.

The MI300X wins in raw density. Its transistor density of 150.4M per mm² on a 1017 mm² die represents a massive compute cluster, while the Arc G3 Extreme's unknown transistor count leaves its density unquantified.

The Arc G3 Extreme wins in clock headroom. Its 2500 MHz boost clock exceeds the MI300X's 2100 MHz boost clock by 19%, and its base clock of 300 MHz allows for aggressive power scaling. The MI300X's higher base clock of 1000 MHz indicates a floor that requires substantial power delivery.

The MI300X wins in benchmark percentile ranking. Being in the 100th percentile means it outperforms all other GPUs in the database, while the Arc G3 Extreme's 50th percentile places it in the median range. The MI300X also has a defined average benchmark score of 317,994, while the Arc G3 Extreme's average is 0 due to missing data.