AMD Radeon 8065S vs AMD Radeon Instinct MI300A Comparison

Head-to-Head Benchmarks

The recorded database contains no direct head-to-head benchmark results for the AMD Radeon 8065S and the AMD Radeon Instinct MI300A. Both entries list zero benchmark scores, zero wins for either product, and no nearest rivals. Consequently, any numerical comparison of performance must be derived from the specification data, not from measured workload outcomes.

The most decisive specification gap appears in raw compute throughput. The Instinct MI300A delivers 81.72 TFLOPS FP32, more than five times the 15.36 TFLOPS of the Radeon 8065S. In FP16, the divergence is far wider: the MI300A reaches 653.7 TFLOPS using an 8:1 ratio, while the 8065S produces 15.36 TFLOPS at a 1:1 ratio, placing the Instinct part ahead by a factor of roughly 42.5. These figures indicate that for any floating-point-heavy workload, the MI300A carries an overwhelming theoretical advantage.

Memory bandwidth tells a similar story. The MI300A accesses 192 GB of HBM3 across an 8192-bit bus, yielding 10.3 TB/s of bandwidth. The 8065S uses system-shared memory with bandwidth described only as system dependent, so no fixed number exists for direct comparison. The absence of a dedicated memory bus on the 8065S means its performance ceiling in memory-bound tasks depends entirely on the host platform, an inherent limitation versus the MI300A's dedicated HBM3 stack.

Texture rate also favors the Instinct product: 2,553.6 GTexel/s versus 480.0 GTexel/s for the 8065S, a 5.3x difference. Pixel rate, however, is reversed. The 8065S posts 192.0 GPixel/s, while the MI300A lists 0 MPixel/s, because the Instinct card has no ROPS and no display outputs, indicating it is not designed for rasterized graphics output. Clock speeds differ as well, with the 8065S boosting to 3000 MHz versus 2100 MHz for the MI300A, though the architectural context makes raw clock comparison misleading.

Architecture Differences

The two GPUs belong to entirely different architectural families. The Radeon 8065S uses the Gorgon Halo chip built on RDNA 3.5, fabricated on a 4 nm process at TSMC. The Instinct MI300A uses the Aqua Vanjaram chip built on CDNA 3.0, fabricated on a 5 nm process, also at TSMC. The 8065S is part of the Navi Mobile (RX 8000M) generation, while the MI300A belongs to the Radeon Instinct (MIx) generation.

Transistor counts and die sizes differ substantially. The MI300A packs 153,000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4M per mm². The 8065S lists its transistor count as unknown, but its die size is 308 mm², roughly one-third the area of the Instinct chip. The MI300A's larger die accommodates far more compute resources: 19,456 shading units and 1,216 TMUs, compared to 2,560 shading units and 160 TMUs on the 8065S.

Ray tracing hardware exists only on the RDNA part. The 8065S includes 40 RT cores; the MI300A has no listed RT cores. The 8065S also supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the MI300A lists no graphics API support at all, reinforcing its role as a compute-only accelerator. The 8065S has 64 ROPs, while the MI300A has zero.

Memory architecture is fundamentally different. The 8065S shares system memory with the host CPU, with no dedicated VRAM size, type, bus width, or bandwidth specified. The MI300A carries 192 GB of HBM3 on an 8192-bit interface with 10.3 TB/s of bandwidth. Memory clock on the MI300A is 2525 MHz, translating to 10.1 Gbps effective, while the 8065S memory clock is listed as system shared.

Power and form factor also diverge. The 8065S is an integrated GPU (IGP) with a 55 W TDP and no power connectors, fitting into a portable device. The MI300A is an OAM module with a 750 W TDP, no power connectors, and a suggested PSU of 1150 W. The 8065S has display outputs described as portable device dependent; the MI300A has no outputs. Both use PCIe 5.0 x16 as the bus interface.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Radeon Instinct MI300A delivers 81.72 TFLOPS FP32, while the AMD Radeon 8065S delivers 15.36 TFLOPS FP32. The MI300A is approximately 5.3 times ahead in this metric.

Q: Does the Radeon 8065S support ray tracing?

A: Yes, the 8065S includes 40 ray tracing cores as part of its RDNA 3.5 architecture. The Instinct MI300A lists no ray tracing cores.

Q: What memory configuration does each GPU use?

A: The 8065S uses system-shared memory with no dedicated VRAM, bus width, or bandwidth figures. The MI300A uses 192 GB of HBM3 with an 8192-bit bus and 10.3 TB/s bandwidth.

Q: Which GPU has a higher boost clock?

A: The Radeon 8065S boosts to 3000 MHz, compared to 2100 MHz for the Instinct MI300A. The 8065S also has a higher base clock at 1295 MHz versus 1000 MHz.

Q: Are these GPUs from the same architecture generation?

A: No. The 8065S uses RDNA 3.5 on a 4 nm process, while the MI300A uses CDNA 3.0 on a 5 nm process. They also belong to different generations: Navi Mobile (RX 8000M) versus Radeon Instinct (MIx).

Q: Can the Instinct MI300A output video to a display?

A: No. The MI300A lists "No outputs" for display outputs and has 0 MPixel/s pixel rate. The 8065S, by contrast, has display outputs dependent on the portable device and a 192.0 GPixel/s pixel rate.

Specification Differences

The following fields differ between the AMD Radeon 8065S and the AMD Radeon Instinct MI300A:

• Chip: Gorgon Halo versus Aqua Vanjaram
• Architecture: RDNA 3.5 versus CDNA 3.0
• Generation: Navi Mobile (RX 8000M) versus Radeon Instinct (MIx)
• Process node: 4 nm versus 5 nm
• Transistors: unknown versus 153,000 million
• Die size: 308 mm² versus 1017 mm²
• Transistor density: not listed versus 150.4M / mm²
• Base clock: 1295 MHz versus 1000 MHz
• Boost clock: 3000 MHz versus 2100 MHz
• Memory clock: System Shared versus 2525 MHz (10.1 Gbps effective)
• Memory size: System Shared versus 192 GB
• Memory type: System Shared versus HBM3
• Memory bus width: System Shared versus 8192 bit
• Memory bandwidth: System Dependent versus 10.3 TB/s
• Shading units: 2560 versus 19456
• TMUs: 160 versus 1216
• ROPs: 64 versus 0
• RT cores: 40 versus not listed
• Pixel rate: 192.0 GPixel/s versus 0 MPixel/s
• Texture rate: 480.0 GTexel/s versus 2,553.6 GTexel/s
• FP32: 15.36 TFLOPS versus 81.72 TFLOPS
• FP16: 15.36 TFLOPS (1:1) versus 653.7 TFLOPS (8:1)
• TDP: 55 W versus 750 W
• Slot width: IGP versus OAM Module
• Suggested PSU: not listed versus 1150 W
• Display outputs: Portable Device Dependent versus No outputs
• DirectX support: 12 Ultimate (12_2) versus not listed
• OpenGL support: 4.6 versus not listed
• Vulkan support: 1.4 versus not listed
• Release date: 2025-12-31 versus 2023-12-05
• Predecessor: Polaris Mobile versus FirePro Data Center
• Production status: Active versus not listed

Where Each One Wins

The Radeon 8065S wins in every metric related to graphics output and client-side rendering. Its 192.0 GPixel/s pixel rate, 64 ROPs, 40 RT cores, and support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 make it suitable for rasterization and ray-traced workloads in a portable device. Its 3000 MHz boost clock and 55 W TDP indicate a design optimized for efficiency within a constrained power envelope. The 8065S also carries a higher base clock (1295 MHz) and uses a smaller die (308 mm²) on a more advanced 4 nm process.

The Instinct MI300A wins in raw compute throughput and memory capacity. Its 81.72 TFLOPS FP32 and 653.7 TFLOPS FP16 performance dwarf the 8065S, and its 10.3 TB/s of memory bandwidth across 192 GB of HBM3 provides the data feeding rates required for large-scale numerical workloads. The MI300A also has far more shading units (19,456) and TMUs (1,216), along with a 1017 mm² die and 153,000 million transistors. Its 750 W TDP and OAM module form factor indicate a server-class accelerator meant for sustained, high-intensity computation rather than interactive graphics.

The Verdict

The data positions these two AMD GPUs as complementary rather than competitive. The Radeon 8065S is a mobile integrated GPU with display capabilities, ray tracing cores, and graphics API support, built for portable devices where power consumption (55 W) and small die size (308 mm²) matter. The Instinct MI300A is a data center compute accelerator with no display outputs, no graphics API support, and a 750 W TDP, engineered for massive parallel floating-point throughput.

For workloads involving real-time rendering, ray tracing, or any form of visual output, the 8065S is the only viable option based on the recorded specifications. For FP32 or FP16 compute at scale, the MI300A offers over five times the FP32 throughput and over forty times the FP16 throughput, along with 192 GB of dedicated HBM3 memory. The 8065S relies on system-shared memory, making its effective bandwidth platform-dependent, while the MI300A has a fixed 10.3 TB/s memory pipeline.

The release dates also separate the products: the MI300A launched in December 2023, while the 8065S has a release date of December 2025. The 8065S is marked active in production status; the MI300A's production status is not listed. Neither product has an average benchmark score or percentile ranking beyond the neutral 50th percentile baseline, so the verdict rests entirely on architectural specifications.

Buyers targeting mobile gaming or general-purpose graphics should choose the 8065S. Buyers targeting scientific computing, AI training, or data center workloads should choose the MI300A. The two GPUs share only their manufacturer, AMD, and their PCIe 5.0 x16 bus interface; in every other measurable respect, they serve different markets.