AMD Radeon 8065S vs AMD Radeon Instinct MI308X Comparison

Head-to-Head Benchmarks

The database contains no recorded head-to-head benchmark results for the AMD Radeon 8065S and the AMD Radeon Instinct MI308X. Both entries list zero benchmark scores, zero wins for either side, and no nearest rival data. The average benchmark score for each is zero, and both sit at the 50th percentile among all GPUs in the database, which in this case reflects the absence of measured data rather than a meaningful performance parity.

Without benchmark runs, a direct numerical comparison of actual workload performance is impossible. The available comparison instead rests on the recorded specification sheets, which diverge sharply. The Radeon 8065S is a mobile integrated graphics processor with a 55 W TDP, while the Radeon Instinct MI308X is a data center accelerator module with a 750 W TDP. The MI308X carries 192 GB of HBM3 memory on an 8192-bit bus, delivering 10.3 TB/s of bandwidth. The 8065S uses system-shared memory with system-dependent bandwidth, meaning its memory performance is tied to the host platform rather than a fixed figure.

The FP32 compute figures show a clear gap: the MI308X records 81.72 TFLOPS against the 8065S's 15.36 TFLOPS. In FP16 workloads, the MI308X reaches 653.7 TFLOPS at an 8:1 ratio, while the 8065S delivers 15.36 TFLOPS at a 1:1 ratio. The texture rate also favors the MI308X heavily, with 2,553.6 GTexel/s versus 480.0 GTexel/s. The pixel rate is a different story: the 8065S records 192.0 GPixel/s, while the MI308X shows 0 MPixel/s, because it has no ROPs and no display outputs.

FAQ

Q: Which GPU has the higher FP32 compute throughput?

A: The AMD Radeon Instinct MI308X records 81.72 TFLOPS in FP32, which is more than five times the 15.36 TFLOPS of the AMD Radeon 8065S.

Q: How much memory does each GPU have?

A: The Radeon Instinct MI308X has 192 GB of HBM3 memory. The Radeon 8065S uses system-shared memory, with its size, type, and bus width all listed as system-shared and its bandwidth as system-dependent.

Q: What is the memory bandwidth of the MI308X?

A: The MI308X records 10.3 TB/s of bandwidth across an 8192-bit bus. The 8065S has no fixed bandwidth figure, as it depends on the host system.

Q: Do both GPUs support PCIe 5.0?

A: Yes, both the Radeon 8065S and the Radeon Instinct MI308X use a PCIe 5.0 x16 bus interface.

Q: Which GPU has a higher boost clock?

A: The Radeon 8065S has a boost clock of 3000 MHz, while the Radeon Instinct MI308X has a boost clock of 2100 MHz.

Q: Does the MI308X have display outputs?

A: No, the MI308X lists no display outputs. The 8065S lists portable-device-dependent outputs, meaning its display connectivity is determined by the host device.

Where Each One Wins

The Radeon 8065S wins in clock speed territory. Its base clock of 1295 MHz and boost clock of 3000 MHz are both higher than the MI308X's 1000 MHz base and 2100 MHz boost. The 8065S also holds the pixel rate advantage at 192.0 GPixel/s, which the MI308X cannot match because it records 0 MPixel/s due to having no ROPs. The 8065S is built for rendering to a display within a mobile device, and its pixel throughput reflects that purpose.

The Radeon Instinct MI308X wins decisively in raw compute and memory capacity. Its FP32 figure of 81.72 TFLOPS and FP16 figure of 653.7 TFLOPS dwarf the 8065S's 15.36 TFLOPS in both precisions. The MI308X also leads in texture rate at 2,553.6 GTexel/s versus 480.0 GTexel/s, and its 192 GB HBM3 pool with 10.3 TB/s bandwidth is in a different class from system-shared memory. The MI308X also has a much larger die at 1017 mm² with 153,000 million transistors, compared to the 8065S's 308 mm² die with an unknown transistor count.

The 8065S wins on power efficiency in absolute terms, drawing 55 W against the MI308X's 750 W, and it fits as an integrated graphics processor with no power connectors. The MI308X requires a suggested PSU of 1150 W and mounts as an OAM module. For workloads that need massive memory capacity and sustained compute throughput, the MI308X is the clear choice. For tasks that need display output and pixel processing in a constrained power envelope, the 8065S is the relevant option.

Specification Differences

The two GPUs differ across nearly every recorded specification. The Radeon 8065S uses a 4 nm process, while the MI308X uses a 5 nm process, both from TSMC. The 8065S has a die size of 308 mm², while the MI308X measures 1017 mm². The MI308X lists 153,000 million transistors and a transistor density of 150.4M per mm², while the 8065S lists an unknown transistor count and no density figure.

Clock speeds differ substantially. The 8065S has a base clock of 1295 MHz and a boost clock of 3000 MHz. The MI308X has a base clock of 1000 MHz and a boost clock of 2100 MHz. Memory configurations are fundamentally different: the 8065S uses system-shared memory with a system-dependent bandwidth, while the MI308X uses 192 GB of HBM3 on an 8192-bit bus with 10.3 TB/s bandwidth and a memory clock of 2525 MHz (10.1 Gbps effective).

Compute unit counts differ sharply. The 8065S has 2560 shading units, 160 TMUs, 64 ROPs, and 40 ray tracing cores. The MI308X has 19456 shading units and 1216 TMUs, but zero ROPs and no recorded ray tracing cores. The pixel rate for the 8065S is 192.0 GPixel/s, while the MI308X records 0 MPixel/s. The texture rate is 480.0 GTexel/s for the 8065S and 2,553.6 GTexel/s for the MI308X.

Power and physical specifications also diverge. The 8065S has a TDP of 55 W, an IGP slot width, and no power connectors. The MI308X has a TDP of 750 W, an OAM Module slot width, no power connectors, and a suggested PSU of 1150 W. The 8065S supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the MI308X lists no API support in the database. The 8065S has portable-device-dependent display outputs, while the MI308X has no outputs. The 8065S released in 2025, while the MI308X released in 2023.

Architecture Differences

The Radeon 8065S is built on the RDNA 3.5 architecture with the Gorgon Halo chip, and it belongs to the Navi Mobile generation (RX 8000M). The Radeon Instinct MI308X uses the CDNA 3.0 architecture with the Aqua Vanjaram chip, and it belongs to the Radeon Instinct (MIx) generation. The two architectures serve different design goals: RDNA 3.5 is oriented toward graphics rendering and mobile integration, while CDNA 3.0 is oriented toward compute acceleration in data center environments.

The 8065S includes 40 ray tracing cores, a feature tailored for graphics workloads. The MI308X has no recorded ray tracing cores, consistent with its compute-focused role. The 8065S also has 64 ROPs, which support its pixel rate of 192.0 GPixel/s. The MI308X has zero ROPs and a pixel rate of 0 MPixel/s, because it is not designed to output to displays.

The MI308X's FP16 throughput of 653.7 TFLOPS at an 8:1 ratio indicates a heavy bias toward reduced-precision compute, a common trait in AI and scientific workloads. The 8065S's FP16 figure of 15.36 TFLOPS at a 1:1 ratio shows a balanced approach, where FP16 and FP32 throughput are equal. The MI308X also has a far larger transistor budget, with 153,000 million transistors, and a much larger die at 1017 mm², reflecting its dedicated compute hardware.

The 8065S uses a 4 nm process, which is a smaller node than the MI308X's 5 nm process. Despite the smaller transistor count on the 8065S, the smaller node allows higher clock speeds: 3000 MHz boost versus 2100 MHz. The MI308X compensates with overwhelming parallelism, using 19456 shading units against the 8065S's 2560.

The 8065S supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, making it suitable for gaming and graphics applications. The MI308X lists no API support in the database, which is typical for a compute-only accelerator that relies on frameworks beyond standard graphics APIs.

The Verdict

The data points to two devices with almost no overlap in intended use. The AMD Radeon 8065S is a mobile integrated GPU with a 55 W TDP, a 3000 MHz boost clock, 2560 shading units, and support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. It is designed to render graphics within a portable device, using system-shared memory and portable-device-dependent display outputs. Its pixel rate of 192.0 GPixel/s and its 40 ray tracing cores confirm a graphics-first design.

The AMD Radeon Instinct MI308X is a data center accelerator with a 750 W TDP, 192 GB of HBM3 memory, 10.3 TB/s of bandwidth, and 19456 shading units. It records 81.72 TFLOPS in FP32 and 653.7 TFLOPS in FP16, making it a compute powerhouse. It has no display outputs, no ROPs, and no graphics API support recorded, which reinforces its role as a compute-only module.

For a user seeking graphics rendering in a mobile form factor, the 8065S is the only viable option between the two, given its display outputs, ray tracing cores, and graphics API support. For a user seeking maximum compute throughput and massive memory capacity for data center workloads, the MI308X is the clear choice, with more than five times the FP32 throughput and more than forty times the FP16 throughput. The 55 W power draw of the 8065S makes it suitable for integrated mobile designs, while the 750 W TDP and 1150 W suggested PSU of the MI308X place it firmly in server infrastructure. The choice depends entirely on the workload: graphics and mobility favor the 8065S, while compute and capacity favor the MI308X.