AMD Instinct MI308X vs AMD Ryzen Z2 Extreme GPU Comparison

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the AMD Instinct MI308X and the AMD Ryzen Z2 Extreme GPU. The Instinct MI308X has no recorded benchmark scores, while the Ryzen Z2 Extreme GPU has a single recorded score. This absence of comparable measurements means a traditional win/loss comparison cannot be constructed from the data.

The Ryzen Z2 Extreme GPU delivers a 3DMark Steel Nomad DX12 score of 516. That places it at the 1st percentile of all GPUs in the database. Its nearest rivals in the recorded data are older discrete and integrated parts. The Intel HD Graphics P4000 scores 534, which is 3.4% higher. The AMD Radeon HD 6870 scores 536, sitting 3.7% higher. The AMD Radeon HD 6750M scores 484, which is 6.6% lower. The AMD Radeon HD 6770M scores 569, which is 9.3% higher. The Z2 Extreme GPU therefore sits in a narrow band around these legacy parts, trailing the top of that group by roughly 9% and leading the bottom by roughly 7%.

For the Instinct MI308X, the recorded average benchmark score is zero and the percentile is 50. That percentile figure should not be read as a performance statement. It is a default position for a part with no measured results, not an indicator of real-world capability. The absence of test data means the database cannot confirm any performance relationship between these two accelerators. The Instinct MI308X targets a completely different workload class, and the Ryzen Z2 Extreme GPU targets integrated graphics duty inside a handheld console chip. The recorded numbers simply do not overlap.

Architecture Differences

The Instinct MI308X uses the Aqua Vanjaram chip, built on CDNA 3.0 architecture. The Ryzen Z2 Extreme GPU uses the Strix Point chip, built on RDNA 3.5 architecture. These are separate design lineages. CDNA 3.0 is AMD's compute-optimized architecture for accelerators, while RDNA 3.5 is the graphics-focused architecture used in console and mobile-class GPUs. The manufacturing processes differ too. The Instinct MI308X is fabricated on a 5 nm process at TSMC. The Ryzen Z2 Extreme GPU is fabricated on a 4 nm process at TSMC. The 4 nm node gives the smaller chip a density of 145.9 million transistors per square millimeter across a 233 mm² die, for a total of 34,000 million transistors. The 5 nm node on the Instinct MI308X packs 150.4 million transistors per square millimeter across a 1017 mm² die, for a total of 153,000 million transistors. The die size difference is enormous: the Instinct MI308X is more than four times the physical area.

The Instinct MI308X is configured for raw compute throughput. It carries 19,456 shading units, 1,216 texture mapping units, and zero raster operation units. Its pixel rate is recorded as 0 MPixel/s because the part has no display outputs and is not designed to rasterize frames. The texture rate is 2,553.6 GTexel/s. The Ryzen Z2 Extreme GPU carries 1,024 shading units, 64 texture mapping units, and 48 raster operation units. It also includes 16 ray tracing cores, a feature class entirely absent from the Instinct MI308X's recorded specifications. The pixel rate is 129.6 GPixel/s and the texture rate is 172.8 GTexel/s. The Instinct MI308X has no ray tracing cores listed, no DirectX support, no OpenGL support, and no Vulkan support. The Ryzen Z2 Extreme GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Memory architecture is fundamentally different. The Instinct MI308X uses 192 GB of HBM3 on an 8192-bit bus, delivering 5.32 TB/s of bandwidth. The Ryzen Z2 Extreme GPU uses 16 GB of LPDDR5X on a 128-bit bus, delivering 128.0 GB/s. The Instinct MI308X has 15 times the memory capacity and more than 40 times the bandwidth. Clock behavior also differs. The Instinct MI308X has a 1000 MHz base clock and a 2100 MHz boost clock. The Ryzen Z2 Extreme GPU has an 800 MHz base clock and a 2700 MHz boost clock. The smaller part runs a higher boost clock by 600 MHz, but the massive shader count of the Instinct MI308X dominates throughput calculations. The Instinct MI308X records 81.72 TFLOPS for both FP32 and FP16 at a 1:1 ratio. The Ryzen Z2 Extreme GPU records 5.530 TFLOPS for both FP32 and FP16 at a 1:1 ratio.

Where Each One Wins

The Instinct MI308X wins decisively in raw compute throughput. Its FP32 figure of 81.72 TFLOPS is roughly 14.8 times the 5.530 TFLOPS of the Ryzen Z2 Extreme GPU. Its texture rate of 2,553.6 GTexel/s is roughly 14.8 times the 172.8 GTexel/s of the smaller part. Its memory bandwidth of 5.32 TB/s is roughly 41.6 times the 128.0 GB/s of the Z2 Extreme GPU. Its 192 GB of HBM3 capacity dwarfs the 16 GB of LPDDR5X. These are not close comparisons; they are different performance classes entirely.

The Ryzen Z2 Extreme GPU wins in areas that matter for a portable or embedded graphics solution. Its power envelope is 28 W, compared to 750 W for the Instinct MI308X. That is a 26.8 times difference in power draw. The Z2 Extreme GPU has a physical form factor suited to integration, with a single USB Type-C display output, while the Instinct MI308X has no display outputs at all. The Z2 Extreme GPU supports modern graphics APIs: DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The Instinct MI308X lists none. The Z2 Extreme GPU includes 16 ray tracing cores and 48 raster operation units, while the Instinct MI308X has zero ROPs and no ray tracing hardware. For rendering, gaming, or any display-driven workload, the Z2 Extreme GPU is the only one of the two that can function. For large-scale compute, AI training, or HPC-style memory-bound tasks, the Instinct MI308X is the only one of the two with the capacity.

The Z2 Extreme GPU also has a production status of Active, while the Instinct MI308X has no production status recorded. The Ryzen Z2 Extreme GPU released on 2025-07-08, while the Instinct MI308X released on 2023-12-05. The newer part is the one still in active production.

Specification Differences

The two parts differ on nearly every recorded specification. The Instinct MI308X uses CDNA 3.0 and the Aqua Vanjaram chip; the Ryzen Z2 Extreme GPU uses RDNA 3.5 and the Strix Point chip. Process node: 5 nm for the Instinct MI308X, 4 nm for the Ryzen Z2 Extreme GPU. Transistors: 153,000 million versus 34,000 million. Die size: 1017 mm² versus 233 mm². Transistor density: 150.4M per mm² versus 145.9M per mm².

Clocks: the Instinct MI308X runs 1000 MHz base and 2100 MHz boost, with memory at 1300 MHz (5.2 Gbps effective). The Ryzen Z2 Extreme GPU runs 800 MHz base and 2700 MHz boost, with memory at 1000 MHz (8 Gbps effective). Memory size: 192 GB HBM3 versus 16 GB LPDDR5X. Bus width: 8192 bit versus 128 bit. Bandwidth: 5.32 TB/s versus 128.0 GB/s.

Shading units: 19,456 versus 1,024. TMUs: 1,216 versus 64. ROPs: 0 versus 48. Ray tracing cores: none recorded versus 16. Pixel rate: 0 MPixel/s versus 129.6 GPixel/s. Texture rate: 2,553.6 GTexel/s versus 172.8 GTexel/s. FP32: 81.72 TFLOPS versus 5.530 TFLOPS. FP16: 81.72 TFLOPS (1:1) versus 5.530 TFLOPS (1:1). TDP: 750 W versus 28 W.

The Instinct MI308X uses an OAM Module slot width with no power connectors and a suggested PSU of 1150 W. Its bus interface is PCIe 5.0 x16. The Ryzen Z2 Extreme GPU has no slot width, no power connectors, no suggested PSU, and no bus interface recorded. Display outputs: none for the Instinct MI308X, one USB Type-C for the Ryzen Z2 Extreme GPU. APIs: the Instinct MI308X lists N/A for DirectX, OpenGL, and Vulkan; the Ryzen Z2 Extreme GPU lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Release dates: 2023-12-05 for the Instinct MI308X, 2025-07-08 for the Ryzen Z2 Extreme GPU. Predecessor: the Instinct MI308X lists Radeon Instinct; the Ryzen Z2 Extreme GPU has none. Production status: none for the Instinct MI308X, Active for the Ryzen Z2 Extreme GPU. Neither part has a recorded launch MSRP in the database.

FAQ

Q: Which GPU has higher raw compute throughput?

A: The AMD Instinct MI308X records 81.72 TFLOPS FP32 and FP16, compared to 5.530 TFLOPS for the AMD Ryzen Z2 Extreme GPU.

Q: Can the Instinct MI308X be used for gaming or display output?

A: No. It has no display outputs and lists N/A for DirectX, OpenGL, and Vulkan support. The Ryzen Z2 Extreme GPU has one USB Type-C display output and supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

Q: How do their memory configurations compare?

A: The Instinct MI308X uses 192 GB of HBM3 on an 8192-bit bus with 5.32 TB/s bandwidth. The Ryzen Z2 Extreme GPU uses 16 GB of LPDDR5X on a 128-bit bus with 128.0 GB/s bandwidth.

Q: What is the power draw difference?

A: The Instinct MI308X has a TDP of 750 W with a suggested PSU of 1150 W. The Ryzen Z2 Extreme GPU has a TDP of 28 W.

Q: Is the Ryzen Z2 Extreme GPU still in production?

A: Yes, its production status is Active. The Instinct MI308X has no production status recorded in the database.

Q: Does the Ryzen Z2 Extreme GPU support ray tracing?

A: Yes, it has 16 ray tracing cores. The Instinct MI308X has no ray tracing cores recorded.

The Verdict

The data separates these two parts cleanly by intended role. The AMD Instinct MI308X is a 750 W accelerator with 192 GB of HBM3, 81.72 TFLOPS of FP32 compute, and a 1017 mm² die. It has no display outputs and no graphics API support. It exists for memory-capacity-bound and throughput-bound compute workloads where 5.32 TB/s of bandwidth and 153,000 million transistors can be put to work. The Ryzen Z2 Extreme GPU is a 28 W integrated graphics solution with 16 GB of LPDDR5X, 5.530 TFLOPS of FP32 compute, and a 233 mm² die. It has 16 ray tracing cores, 48 ROPs, a USB Type-C display output, and full DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support.

For anyone building a system that needs to render frames to a display, play games, or use graphics APIs, the Instinct MI308X cannot do the job at all. For anyone running large memory-resident compute workloads, the Ryzen Z2 Extreme GPU lacks the capacity and bandwidth. The benchmark data records a 3DMark Steel Nomad DX12 score of 516 for the Ryzen Z2 Extreme GPU, placing it near legacy parts like the AMD Radeon HD 6870 and Intel HD Graphics P4000. The Instinct MI308X has no benchmark scores recorded, so its percentile of 50 is a placeholder rather than a measured result. The choice between them is not about performance tiers; it is about selecting the tool that matches the workload.