AMD Instinct MI300A vs Intel Arc G3 Comparison

The AMD Instinct MI300A and Intel Arc G3 occupy opposite extremes of the graphics processor spectrum, one designed for massive compute workloads in data centers, the other for integrated graphics in mobile devices. The recorded data shows a 50th percentile ranking for both against all GPUs in the database, yet the underlying specifications reveal entirely different design philosophies. The MI300A delivers 61.29 TFLOPS of FP32 performance, while the Arc G3 delivers 6.144 TFLOPS, a tenfold difference that defines their respective roles. The MI300A uses a 5 nm process from TSMC with 153,000 million transistors on a 1017 mm² die, while the Arc G3 uses Intel's 3 nm process with transistor count and die size listed as unknown. These are not competing products in any conventional sense, but the data allows for a detailed examination of how each serves a distinct purpose.

The Verdict

The data indicates that the AMD Instinct MI300A is intended for compute-heavy environments where raw throughput and memory capacity are paramount. Its 128 GB of HBM3 memory with an 8192-bit bus width and 5.32 TB/s bandwidth positions it for large-scale data processing, simulation, and AI training workloads. The 750 W TDP and OAM Module slot width confirm a server-oriented design, and the absence of display outputs reinforces that this is not a graphics card in the traditional sense. The Intel Arc G3, by contrast, is an integrated graphics processor with a 25 W TDP, making it suitable for portable devices where power efficiency and space constraints dominate. Its system-shared memory and IGP bus interface indicate it relies on the host system's RAM rather than dedicated VRAM.

The benchmark scores in the database are zero for both processors, and the head-to-head benchmark array is empty, meaning there is no direct performance comparison available. The wins count for each is zero. This absence of measured data means the analysis must rely entirely on the architectural and specification differences recorded. The percentile ranking of 50 for both suggests they sit at the midpoint of the database's GPU population, though this is a relative measure that does not account for the vastly different application domains. The MI300A's 1,915.2 GTexel/s texture rate and 61.29 TFLOPS FP32 performance dwarf the Arc G3's 96.00 GTexel/s and 6.144 TFLOPS, but the Arc G3 offers features the MI300A lacks entirely, such as DirectX 12 Ultimate support, OpenGL 4.6, and Vulkan 1.4.

The production status for the MI300A is not recorded, while the Arc G3 is listed as active. The release dates show the MI300A launching on 2023-12-05 and the Arc G3 on 2026-05-31, indicating a generational gap. Neither product has a launch MSRP recorded in the database. The verdict from the recorded data is clear: the MI300A is for compute professionals requiring maximum processing power and memory bandwidth, while the Arc G3 is for portable device manufacturers needing a capable integrated GPU with modern API support at minimal power draw.

Architecture Differences

The architectural divide between these two processors is stark. The MI300A uses AMD's CDNA 3.0 architecture on the Aqua Vanjaram chip, while the Arc G3 uses Intel's Xe3-LPG architecture on the Panther Lake chip. CDNA 3.0 is described in the database as a compute-oriented architecture, and the MI300A's specifications align with that classification. The chip contains 153,000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4 million transistors per square millimeter. This is a massive, monolithic design fabricated on TSMC's 5 nm process. The Arc G3, in contrast, has no recorded transistor count or die size, but its 3 nm process from Intel suggests a much smaller, more power-efficient design. The 3 nm node represents a more advanced manufacturing process than the 5 nm node, though the database does not provide specific density figures for the Intel chip.

The memory architectures could not be more different. The MI300A uses 128 GB of HBM3 memory with an 8192-bit bus width and 5.32 TB/s bandwidth. This is dedicated, high-bandwidth memory designed for compute workloads that require rapid access to large datasets. The Arc G3 uses system-shared memory, meaning it has no dedicated VRAM and instead borrows from the host system's RAM. Its memory bus width and bandwidth are listed as system dependent, reflecting the fact that performance varies based on the host platform. The clock speeds reinforce this divide: the MI300A runs at a 1000 MHz base clock and 2100 MHz boost clock, with memory clocked at 1300 MHz for 5.2 Gbps effective. The Arc G3 runs at a 300 MHz base clock and 2400 MHz boost clock, with system-shared memory clock.

Shader and texture resources follow the same pattern. The MI300A has 14,592 shading units, 912 texture mapping units, and zero ROPs, which is consistent with a compute accelerator that does not output to displays. Its pixel rate is recorded as 0 MPixel/s. The Arc G3 has 1,280 shading units, 40 texture mapping units, and 20 ROPs, with a pixel rate of 48.00 GPixel/s. The Arc G3 also includes 10 ray tracing cores, while the MI300A has none recorded. The MI300A's FP32 performance is 61.29 TFLOPS, and its texture rate is 1,915.2 GTexel/s. The Arc G3's FP32 performance is 6.144 TFLOPS, with 12.29 TFLOPS FP16 performance at a 2:1 ratio, and a texture rate of 96.00 GTexel/s. The MI300A has no FP16 figure recorded in the database.

The API support differs completely. The MI300A lists DirectX, OpenGL, and Vulkan as N/A, confirming it is not a graphics-rendering device. The Arc G3 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, making it a fully featured graphics solution for modern applications. The MI300A has no display outputs, while the Arc G3's display outputs are listed as portable device dependent, meaning they vary by the host device. Power delivery also diverges: the MI300A requires a 750 W TDP with a suggested PSU of 1150 W and no power connectors (OAM modules receive power through the socket), while the Arc G3 has a 25 W TDP, no power connectors, and no suggested PSU listed. Neither product has a predecessor or successor relationship recorded, except the MI300A lists Radeon Instinct as its predecessor.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark results for these two processors. The head-to-head benchmarks array is empty, and both the winsA and winsB fields are zero. The benchmark scores for each are also zero, meaning there are no recorded performance measurements to compare directly. This absence of data is itself informative: it reflects the reality that these products would never be evaluated against each other in a real-world testing scenario. The MI300A is a data center accelerator with no display outputs, while the Arc G3 is an integrated GPU designed for portable devices. No standard benchmark suite would pit them against each other.

What can be compared are the raw specification-derived metrics. The MI300A's FP32 throughput of 61.29 TFLOPS is exactly ten times the Arc G3's 6.144 TFLOPS. The texture rate gap is even wider: 1,915.2 GTexel/s versus 96.00 GTexel/s, a factor of approximately 19.95. These figures indicate the MI300A processes compute workloads at a rate that the Arc G3 cannot approach, which is expected given the 750 W versus 25 W TDP difference and the 5 nm versus 3 nm process node. The MI300A's 128 GB HBM3 memory with 5.32 TB/s bandwidth provides 24 times the bandwidth of what a typical system-shared memory configuration might offer, though the database does not specify the Arc G3's actual bandwidth since it is system dependent.

The Arc G3 counters with features the MI300A lacks entirely. Its 48.00 GPixel/s pixel rate, 10 ray tracing cores, and support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 make it a functional graphics processor. The MI300A has no pixel rate, no ray tracing cores, and no API support recorded. The Arc G3's FP16 performance of 12.29 TFLOPS at a 2:1 ratio doubles its FP32 output, a feature not recorded for the MI300A. The clock speed comparison shows the Arc G3 boosting to 2400 MHz, which is 300 MHz higher than the MI300A's 2100 MHz boost, though this advantage is meaningless given the massive difference in shading units and memory bandwidth.

Specification Differences

The specification fields where the two processors differ are numerous and significant. The process node differs: TSMC 5 nm for the MI300A, Intel 3 nm for the Arc G3. The foundry likewise differs, with TSMC fabricating the MI300A and Intel fabricating the Arc G3. Transistor counts are 153,000 million for the MI300A and unknown for the Arc G3. Die size is 1017 mm² for the MI300A and unknown for the Arc G3. Transistor density is 150.4 million per square millimeter for the MI300A and not recorded for the Arc G3. The base clock is 1000 MHz for the MI300A and 300 MHz for the Arc G3. The boost clock is 2100 MHz for the MI300A and 2400 MHz for the Arc G3. The MI300A has a memory clock of 1300 MHz (5.2 Gbps effective), while the Arc G3 uses system-shared memory with no dedicated clock.

Memory size is 128 GB for the MI300A versus system shared for the Arc G3. Memory type is HBM3 versus system shared. Bus width is 8192 bit versus system shared. Bandwidth is 5.32 TB/s versus system dependent. Shading units number 14,592 versus 1,280. TMUs number 912 versus 40. ROPs are 0 versus 20. The MI300A has no ray tracing cores recorded, while the Arc G3 has 10. Pixel rate is 0 MPixel/s versus 48.00 GPixel/s. Texture rate is 1,915.2 GTexel/s versus 96.00 GTexel/s. FP32 performance is 61.29 TFLOPS versus 6.144 TFLOPS. FP16 is not recorded for the MI300A, while the Arc G3 lists 12.29 TFLOPS at a 2:1 ratio. TDP is 750 W versus 25 W. Slot width is OAM Module versus IGP. The suggested PSU is 1150 W for the MI300A and not listed for the Arc G3. Bus interface is PCIe 5.0 x16 versus IGP. Display outputs are none versus portable device dependent. The API fields show N/A for the MI300A across DirectX, OpenGL, and Vulkan, while the Arc G3 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The production status is not recorded for the MI300A and active for the Arc G3. Release dates are 2023-12-05 for the MI300A and 2026-05-31 for the Arc G3. The MI300A lists Radeon Instinct as its predecessor, while the Arc G3 has no predecessor recorded.

FAQ

Q: Which processor has higher FP32 performance?

A: The AMD Instinct MI300A delivers 61.29 TFLOPS of FP32 performance, while the Intel Arc G3 delivers 6.144 TFLOPS. The MI300A's FP32 output is exactly ten times that of the Arc G3.

Q: What type of memory does each processor use?

A: The MI300A uses 128 GB of HBM3 memory with an 8192-bit bus width and 5.32 TB/s bandwidth. The Arc G3 uses system-shared memory, meaning it depends on the host system's RAM, with bandwidth listed as system dependent.

Q: Does the Intel Arc G3 support ray tracing?

A: Yes, the Arc G3 includes 10 ray tracing cores. The MI300A has no ray tracing cores recorded in the database.

Q: What is the power consumption difference?

A: The MI300A has a TDP of 750 W with a suggested PSU of 1150 W. The Arc G3 has a TDP of 25 W and no suggested PSU listed.

Q: Which processor supports DirectX 12 Ultimate?

A: The Arc G3 supports DirectX 12 Ultimate (12_2), along with OpenGL 4.6 and Vulkan 1.4. The MI300A lists DirectX, OpenGL, and Vulkan as N/A, indicating no graphics API support.

Q: What are the process nodes used by each processor?

A: The MI300A uses a 5 nm process from TSMC with 153,000 million transistors on a 1017 mm² die. The Arc G3 uses a 3 nm process from Intel, with transistor count and die size listed as unknown.

Where Each One Wins

The AMD Instinct MI300A wins decisively in raw compute throughput. Its 61.29 TFLOPS FP32 performance, 1,915.2 GTexel/s texture rate, and 5.32 TB/s memory bandwidth make it suitable for workloads that demand massive parallel processing and rapid data movement. The 128 GB HBM3 memory capacity supports large datasets that would not fit in the system-shared memory of the Arc G3. The 750 W TDP and OAM Module form factor indicate it is designed for server racks with adequate cooling and power delivery. The PCIe 5.0 x16 bus interface provides high-speed host connectivity. The absence of display outputs and graphics API support confirms its role as a compute accelerator rather than a rendering device. The 2023-12-05 release date places it earlier than the Arc G3.

The Intel Arc G3 wins in power efficiency and graphics functionality. Its 25 W TDP is 30 times lower than the MI300A's 750 W, making it viable for battery-powered portable devices. The 3 nm process from Intel represents a more advanced manufacturing node than the 5 nm process of the MI300A. The Arc G3's 10 ray tracing cores, 48.00 GPixel/s pixel rate, and support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 make it a complete graphics solution for gaming and content consumption. Its 2400 MHz boost clock is 300 MHz higher than the MI300A's 2100 MHz boost. The 12.29 TFLOPS FP16 performance at a 2:1 ratio provides additional compute capability for supported workloads. The active production status and 2026-05-31 release date indicate current availability. The IGP form factor means it is integrated into a processor package, requiring no additional board space or power connectors.

The data does not support a direct comparison of benchmark scores, as none are recorded for either processor. The percentile ranking of 50 for both against all GPUs in the database suggests they occupy similar relative positions within their respective categories, though the database does not categorize them further. The MI300A's strengths are compute density, memory bandwidth, and capacity. The Arc G3's strengths are power efficiency, graphics API support, and portability. Each processor wins in the domain it was designed for, and the recorded specifications make those domains mutually exclusive.