AMD Instinct MI308X vs AMD Radeon RX 7600 Comparison

Where Each One Wins

The recorded data presents an unusual matchup. The AMD Instinct MI308X is a compute-oriented accelerator with no display outputs and no benchmark scores listed in the database, while the AMD Radeon RX 7600 is a consumer graphics card with a full suite of DirectX, OpenCL, and Vulkan measurements. The Instinct MI308X therefore wins by default in any metric tied to raw compute specifications, memory capacity, and memory bandwidth. The RX 7600 wins in every measured benchmark, every graphics API test, and every practical use case involving rendering to a screen.

The Instinct MI308X targets workloads that never touch a display. Its 192 GB of HBM3 memory and 5.32 TB/s bandwidth position it for large dataset processing, model training, or inference tasks where memory capacity is the limiting factor. The RX 7600, with 8 GB of GDDR6 and 288.0 GB/s bandwidth, serves conventional gaming and desktop graphics. The data shows no overlap in their intended functions: one accelerates parallel compute, the other renders frames.

The RX 7600 holds a percentile rank of 57 among all GPUs in the database, with an average benchmark score of 15171. The Instinct MI308X has a percentile rank of 50 and an average benchmark score of 0, reflecting the absence of recorded benchmark entries. The RX 7600's nearest rivals, the NVIDIA GeForce RTX 3050 OEM at 15199 and the AMD Radeon 680M at 15270, bracket its score within a narrow band, indicating that its measured performance sits in a competitive mid-range tier. The Instinct MI308X has no nearest rivals listed, meaning the database contains no comparable measured scores for it.

FAQ

Q: Which card has more memory?

A: The AMD Instinct MI308X has 192 GB of HBM3 memory, while the AMD Radeon RX 7600 has 8 GB of GDDR6. The MI308X also leads in memory bandwidth with 5.32 TB/s versus 288.0 GB/s.

Q: Does the Instinct MI308X support display outputs?

A: No. The database lists "No outputs" for the MI308X, and its API support is marked as N/A for DirectX, OpenGL, and Vulkan. The RX 7600 provides 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs.

Q: What benchmark scores does the Instinct MI308X have?

A: The database records no benchmark scores for the MI308X. Its average benchmark score is 0. The RX 7600 has an average benchmark score of 15171 across tests including 3DMark Steel Nomad DX12, Geekbench OpenCL, Geekbench Vulkan, and several Passmark tests.

Q: How does the RX 7600 compare to its nearest rivals?

A: The RX 7600 scores 15171 on average. The NVIDIA GeForce RTX 3050 OEM scores 15199, a delta of -0.2% relative to the RX 7600. The AMD Radeon 680M scores 15270, a delta of -0.7%. The AMD Radeon Pro 560X scores 15082, a delta of 0.6%, and the NVIDIA GeForce GTX 660 Ti scores 15063, a delta of 0.7%.

Q: What are the power requirements for each card?

A: The Instinct MI308X has a TDP of 750 W and a suggested PSU of 1150 W. The RX 7600 has a TDP of 165 W and a suggested PSU of 450 W. The MI308X uses no power connectors as an OAM module, while the RX 7600 uses one 8-pin connector.

Q: Which card has ray tracing cores?

A: The RX 7600 has 32 ray tracing cores. The Instinct MI308X lists null for ray tracing cores, indicating the database does not assign it any.

Head-to-Head Benchmarks

The database contains no shared benchmark entries between the two cards, so a direct numerical comparison of measured scores is impossible. The wins are entirely one-sided: the RX 7600 has ten recorded benchmark scores, and the MI308X has none.

The RX 7600's strongest result is in Geekbench OpenCL with a score of 88051, far above its Geekbench Vulkan score of 34401. This gap suggests the card's compute performance under OpenCL is substantially higher than its Vulkan compute path. In Passmark tests, the RX 7600 scores 16634 in G3D, 8790 in GPU Compute, 984 in G2D, 226 in DirectX 9, 172 in DirectX 11, 84 in DirectX 10, and 58 in DirectX 12. The 3DMark Steel Nomad DX12 test yields 2310.

The MI308X, by contrast, lists no measured results. Its specifications indicate capability far beyond the RX 7600 in raw numbers: 81.72 TFLOPS FP32 versus 21.75 TFLOPS, 19456 shading units versus 2048, and a texture rate of 2,553.6 GTexel/s versus 339.8 GTexel/s. These figures come from the specification fields, not from benchmark runs. The database treats the MI308X as untested in its current record, so any performance statement about it must rest on its declared specifications rather than measured outcomes.

The pixel rate column highlights another divergence. The MI308X lists 0 MPixel/s, consistent with a card that has no display outputs and no rasterization pipeline for graphics. The RX 7600 lists 169.9 GPixel/s, a conventional figure for a consumer GPU with 64 ROPs. The MI308X also lists 0 ROPs, while the RX 7600 has 64. This is not a case of one card being slower at the same task; the MI308X is simply not designed to perform the task at all.

Specification Differences

The two cards differ in nearly every specification field. The MI308X uses an Aqua Vanjaram chip on a 5 nm TSMC process, while the RX 7600 uses a Navi 33 chip on a 6 nm TSMC process. Transistor counts scale accordingly: 153,000 million for the MI308X versus 13,300 million for the RX 7600, with die sizes of 1017 mm² and 204 mm² respectively. Transistor density is 150.4M per mm² for the MI308X and 65.2M per mm² for the RX 7600.

Clock behavior differs in structure. The MI308X has a base clock of 1000 MHz and a boost clock of 2100 MHz, with no game clock listed. The RX 7600 has a base clock of 1720 MHz, a boost clock of 2655 MHz, and a game clock of 2250 MHz. Memory clocks also differ: the MI308X runs at 1300 MHz with 5.2 Gbps effective, while the RX 7600 runs at 2250 MHz with 18 Gbps effective.

Memory configuration is the largest gap. The MI308X carries 192 GB of HBM3 across an 8192-bit bus with 5.32 TB/s bandwidth. The RX 7600 carries 8 GB of GDDR6 across a 128-bit bus with 288.0 GB/s bandwidth. The bus width difference is 8192 bits versus 128 bits, a 64-fold gap that explains the bandwidth disparity despite the RX 7600's higher memory clock.

Compute resources follow the same pattern. The MI308X has 19456 shading units, 1216 TMUs, and 0 ROPs. The RX 7600 has 2048 shading units, 128 TMUs, and 64 ROPs. The MI308X lists no ray tracing cores, while the RX 7600 has 32. FP32 throughput is 81.72 TFLOPS for the MI308X and 21.75 TFLOPS for the RX 7600, with both cards listing FP16 at a 1:1 ratio to FP32.

Power and physical characteristics differ sharply. The MI308X is an OAM module with a 750 W TDP, no power connectors, and a suggested PSU of 1150 W. The RX 7600 is a dual-slot card with a 165 W TDP, one 8-pin connector, a suggested PSU of 450 W, and dimensions of 204 mm by 115 mm. The MI308X has no listed dimensions. Bus interfaces differ as well: PCIe 5.0 x16 for the MI308X versus PCIe 4.0 x8 for the RX 7600.

Architecture Differences

The MI308X uses CDNA 3.0 architecture, designed for compute acceleration. The RX 7600 uses RDNA 3.0 architecture, designed for graphics rendering. The MI308X belongs to the Instinct (MIx) generation with the chip codename Aqua Vanjaram, while the RX 7600 belongs to the Radeon RX 7000 series, generation Navi III, with the codename Hotpink Bonefish.

API support divides the two cleanly. The MI308X lists DirectX, OpenGL, and Vulkan all as N/A, reflecting its lack of a graphics pipeline. The RX 7600 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI308X has no display outputs, while the RX 7600 provides HDMI 2.1a and DisplayPort 2.1.

Release timing is close but distinct. The MI308X released on 2023-12-05, and the RX 7600 released on 2023-05-24, making the RX 7600 roughly six months older. The RX 7600 lists a predecessor of Navi II and a successor of Navi IV, with an active production status. The MI308X lists a predecessor of Radeon Instinct and no successor. The RX 7600 has a launch MSRP of 269 USD. The MI308X has no launch MSRP in the database.

The architectural intent is clearest in the memory and rasterization fields. The MI308X pairs 192 GB of HBM3 with 0 ROPs and 0 MPixel/s pixel rate, confirming that its silicon dedicates area to compute and memory rather than graphics output. The RX 7600 pairs 8 GB of GDDR6 with 64 ROPs and a 169.9 GPixel/s pixel rate, confirming a conventional rasterization pipeline. The MI308X's texture rate of 2,553.6 GTexel/s versus 339.8 GTexel/s for the RX 7600 shows that even the MI308X's auxiliary compute resources dwarf the consumer card's, but those resources are not exposed through any graphics API.

The Verdict

The data supports a simple split. The AMD Radeon RX 7600 is the only one of the two with measurable graphics performance. Its ten recorded benchmarks, its 57th percentile rank, and its API support make it the clear choice for any workload that requires rendering, display output, or standard graphics APIs. Its average benchmark score of 15171 places it within a tight cluster of rivals, all within 0.7% of its score, indicating consistent mid-range performance.

The AMD Instinct MI308X is not a graphics card in the conventional sense. It has no display outputs, no API support, no ROPs, and no benchmark scores. Its value lies entirely in its specifications: 192 GB of memory, 5.32 TB/s bandwidth, 81.72 TFLOPS FP32, and a 5 nm process with 153,000 million transistors. Those figures point to a compute accelerator for server or datacenter use, where the absence of a graphics pipeline is irrelevant.

A user selecting between these two cards would be choosing between two different product categories. The RX 7600 delivers measured, verifiable graphics performance with a full software stack. The MI308X offers raw compute and memory specifications that the database has not validated through any benchmark. The recorded data does not allow a direct performance comparison, because no shared test exists. It only allows a comparison of specifications, and in that comparison the MI308X dominates every compute and memory field while the RX 7600 dominates every graphics and display field. The verdict follows the use case: for graphics, the RX 7600; for compute scale, the MI308X, subject to the absence of measured results in the database.