AMD Instinct MI325X vs AMD Radeon RX 7700S Comparison

Head-to-Head Benchmarks

The database contains benchmark scores for the AMD Radeon RX 7700S, while the AMD Instinct MI325X has no recorded benchmark entries. This means a direct numeric comparison of measured performance is not possible from the recorded data. The RX 7700S achieves an average benchmark score of 33,849, placing it at the 78th percentile among all GPUs in the database. Its nearest rivals, based on average score, are the AMD Radeon HD 7950 (33,951, a 0.3% difference), the AMD Radeon RX 480 (33,997, a 0.4% difference), the NVIDIA GeForce GTX 1060 5 GB (33,694, a 0.5% difference in favor of the RX 7700S), and the NVIDIA RTX A5000 (33,622, a 0.7% difference in favor of the RX 7700S). These close margins indicate that the RX 7700S sits in a competitive performance band, trading blows with these established desktop cards within a 1% window.

For the MI325X, the percentileVsAllGpus field is 50, and the avgBenchmarkScore is 0, with no nearest rivals listed. The absence of benchmark data means the database cannot validate its real-world performance, and the 50th percentile figure appears to be a neutral placeholder rather than a measured result. Users should treat the MI325X's performance as unquantified by the database, relying instead on its architectural specifications.

The RX 7700S's individual benchmark results show a 3DMark Steel Nomad DX12 score of 2,185, a Geekbench OpenCL score of 62,983, and a Geekbench Vulkan score of 36,380. The OpenCL score is notably higher than the Vulkan score, suggesting the driver and workload optimization favors OpenCL for this GPU. The Steel Nomad result, being a modern DX12 test, indicates the card can handle current-generation gaming workloads, but without comparable data for the MI325X, no head-to-head conclusion can be drawn from these numbers.

Where Each One Wins

AMD Instinct MI325X is designed for compute acceleration, not rendering or gaming. Its specifications point to massive parallel throughput: 19,456 shading units, 1,216 texture mapping units, and a 1,017 mm² die with 153,000 million transistors on a 5 nm TSMC process. The FP32 compute rate of 81.72 TFLOPS, with FP16 at 81.72 TFLOPS (1:1 ratio), indicates it is built for dense matrix and scientific workloads where precision scaling is not required. The 256 GB HBM3e memory with an 8,192-bit bus and 6.14 TB/s bandwidth dwarfs any consumer or mobile GPU, making it suited for large dataset processing, AI training, or inference tasks that exceed the memory capacity of typical graphics cards. It has no display outputs, confirming its role as an accelerator, not a display adapter.

AMD Radeon RX 7700S wins in gaming and client workloads. Its RDNA 3.0 architecture, with 2,048 shading units, 128 TMUs, 64 ROPs, and 32 ray accelerators, supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The 8 GB GDDR6 memory on a 128-bit bus delivers 288.0 GB/s bandwidth, sufficient for 1080p and 1440p gaming. The FP32 rate of 20.48 TFLOPS and FP16 rate of 40.96 TFLOPS (2:1 ratio) show a balanced approach for graphics, where FP16 is used for select effects but not as the primary compute path. The card's 100 W TDP and IGP form factor, with display outputs described as "Portable Device Dependent," indicate it is intended for laptops, where power efficiency and compact design are priorities. The RX 7700S's benchmark average of 33,849 and 78th percentile ranking confirm it is a capable mid-range mobile GPU, performing near the level of desktop GPUs like the GTX 1060 5 GB and RX 480.

The clear split is: MI325X for server-side acceleration with no display capabilities, RX 7700S for portable gaming and general graphics with full API support.

Architecture Differences

The two GPUs share the same manufacturer and foundry (TSMC) but diverge in every architectural detail. The MI325X uses the Aqua Vanjaram chip with CDNA 3.0 architecture, fabricated on a 5 nm process. The RX 7700S uses the Navi 33 chip (codename Hotpink Bonefish) with RDNA 3.0 architecture, fabricated on a 6 nm process. The node difference gives the MI325X a density advantage: 150.4 million transistors per mm² versus 65.2 million for the RX 7700S. The MI325X packs 153,000 million transistors on a 1,017 mm² die; the RX 7700S has 13,300 million transistors on a 204 mm² die.

Memory architecture is fundamentally different. The MI325X uses HBM3e with a 256 GB capacity, an 8,192-bit bus, and 6.14 TB/s bandwidth, with a memory clock of 1500 MHz (6 Gbps effective). The RX 7700S uses GDDR6 with 8 GB capacity, a 128-bit bus, and 288.0 GB/s bandwidth, with a memory clock of 2250 MHz (18 Gbps effective). The MI325X's memory bandwidth is over 21 times higher, but its latency characteristics and access patterns are optimized for streaming large datasets, not random-access graphics workloads.

Compute resources differ by an order of magnitude. The MI325X has 19,456 shading units and 1,216 TMUs, with no ROPs (pixel rate is 0 MPixel/s) and no ray accelerators. The RX 7700S has 2,048 shading units, 128 TMUs, 64 ROPs, and 32 ray accelerators, with a pixel rate of 160.0 GPixel/s and texture rate of 320.0 GTexel/s. The MI325X's texture rate is 2,553.6 GTexel/s, which is about 8 times higher, reflecting its focus on compute-heavy texturing tasks rather than rasterization.

Clock speeds also differ. The MI325X runs at a base of 1000 MHz and boost of 2100 MHz. The RX 7700S runs at a base of 1500 MHz, game clock of 2200 MHz, and boost of 2500 MHz. The higher clocks on the RX 7700S are typical for a gaming-oriented chip that prioritizes single-thread responsiveness, while the MI325X relies on massive parallelism rather than clock speed.

The TDP difference is extreme: 1000 W for the MI325X versus 100 W for the RX 7700S. The MI325X is an OAM module with no power connectors (power delivered through the module interface) and requires a 1400 W suggested PSU. The RX 7700S is an IGP with no power connectors, designed for integration into a laptop motherboard. The MI325X uses PCIe 5.0 x16, while the RX 7700S uses PCIe 4.0 x16, though the bandwidth requirements differ given the memory architecture.

API support varies. The MI325X lists DirectX, OpenGL, and Vulkan as N/A, meaning it has no graphics API support. The RX 7700S fully supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, confirming its role as a graphics processor.

FAQ

Q: Can the AMD Instinct MI325X be used for gaming?

A: No. The MI325X has no display outputs, no ROPs (pixel rate is 0 MPixel/s), and no DirectX, OpenGL, or Vulkan API support. Its architecture is CDNA 3.0, designed for compute acceleration, not graphics rendering.

Q: What is the memory capacity difference between the two GPUs?

A: The MI325X has 256 GB of HBM3e memory with an 8,192-bit bus and 6.14 TB/s bandwidth. The RX 7700S has 8 GB of GDDR6 memory with a 128-bit bus and 288.0 GB/s bandwidth. The MI325X offers 32 times the capacity and over 21 times the bandwidth.

Q: Which GPU has higher clock speeds?

A: The RX 7700S has higher clocks: base 1500 MHz, game 2200 MHz, boost 2500 MHz. The MI325X runs at base 1000 MHz and boost 2100 MHz. The RX 7700S's boost clock is 400 MHz higher.

Q: How does the RX 7700S compare to its nearest rivals?

A: The RX 7700S has an average benchmark score of 33,849, which is 0.3% below the AMD Radeon HD 7950 (33,951), 0.4% below the AMD Radeon RX 480 (33,997), 0.5% above the NVIDIA GeForce GTX 1060 5 GB (33,694), and 0.7% above the NVIDIA RTX A5000 (33,622). All differences are within 1%, placing the RX 7700S in a tight performance cluster.

Q: What is the transistor count and die size for each?

A: The MI325X has 153,000 million transistors on a 1,017 mm² die with a density of 150.4 million per mm². The RX 7700S has 13,300 million transistors on a 204 mm² die with a density of 65.2 million per mm².

Q: What is the power requirement for the MI325X?

A: The MI325X has a TDP of 1000 W and requires a suggested PSU of 1400 W. It is an OAM module with no power connectors, meaning power is supplied through the module interface.

The Verdict

The data presents two GPUs with no overlap in purpose or application. The AMD Instinct MI325X is a compute accelerator for server environments. Its 256 GB HBM3e memory, 81.72 TFLOPS FP32 performance, and 1000 W TDP make it suited for AI training, scientific simulation, or large-scale data processing where memory capacity and bandwidth are the primary constraints. The absence of display outputs and graphics APIs means it cannot function as a conventional video card. The database has no benchmark scores for it, so its real-world performance remains unverified, but the specifications indicate a design focused on throughput rather than latency or graphics features.

The AMD Radeon RX 7700S is a mobile gaming GPU. Its 78th percentile ranking and average benchmark score of 33,849 show it performs comparably to desktop GPUs like the GTX 1060 5 GB and RX 480, which are still relevant for 1080p gaming. The 8 GB memory, 32 ray accelerators, and full DirectX 12 Ultimate support make it suitable for modern games at moderate settings. The 100 W TDP and IGP form factor confirm its laptop use case, where power draw and heat are critical. Its Geekbench OpenCL score of 62,983 versus Vulkan score of 36,380 suggests compute-heavy workloads run better under OpenCL, but for gaming, the Steel Nomad DX12 score of 2,185 indicates acceptable rasterization performance.

Who should pick which: choose the MI325X if the workload is compute-only, requires more than 8 GB of memory, and operates in a server or workstation chassis with a 1400 W PSU. Choose the RX 7700S if the application is gaming, content creation with graphics APIs, or any task requiring a display output. The MI325X cannot output video, and the RX 7700S cannot match the MI325X's memory capacity or compute throughput. The two GPUs are not competitors; they serve distinct markets with no benchmark overlap.

Specification Differences

| Specification | AMD Instinct MI325X | AMD Radeon RX 7700S |

|---|---|---|

| Architecture | CDNA 3.0 | RDNA 3.0 |

| Process Node | 5 nm | 6 nm |

| Transistors | 153,000 million | 13,300 million |

| Die Size | 1017 mm² | 204 mm² |

| Transistor Density | 150.4M / mm² | 65.2M / mm² |

| Base Clock | 1000 MHz | 1500 MHz |

| Boost Clock | 2100 MHz | 2500 MHz |

| Game Clock | N/A | 2200 MHz |

| Memory Size | 256 GB | 8 GB |

| Memory Type | HBM3e | GDDR6 |

| Memory Bus Width | 8192 bit | 128 bit |

| Memory Bandwidth | 6.14 TB/s | 288.0 GB/s |

| Shading Units | 19456 | 2048 |

| TMUs | 1216 | 128 |

| ROPs | 0 | 64 |

| Ray Accelerators | N/A | 32 |

| Pixel Rate | 0 MPixel/s | 160.0 GPixel/s |

| Texture Rate | 2,553.6 GTexel/s | 320.0 GTexel/s |

| FP32 Performance | 81.72 TFLOPS | 20.48 TFLOPS |

| FP16 Performance | 81.72 TFLOPS (1:1) | 40.96 TFLOPS (2:1) |

| TDP | 1000 W | 100 W |

| Slot Width | OAM Module | IGP |

| Suggested PSU | 1400 W | N/A |

| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| Display Outputs | No outputs | Portable Device Dependent |

| DirectX Support | N/A | 12 Ultimate (12_2) |

| OpenGL Support | N/A | 4.6 |

| Vulkan Support | N/A | 1.4 |

| Release Date | 2024-10-09 | 2023-01-03 |

| Production Status | N/A | Active |

| Predecessor | Radeon Instinct | Polaris Mobile |