AMD Instinct MI300X vs NVIDIA GeForce RTX 5070 Ti Mobile Comparison

Head-to-Head Benchmarks

The only shared benchmark in the database is Geekbench OpenCL, and the result is decisive. The AMD Instinct MI300X scores 317,994 points, while the NVIDIA GeForce RTX 5070 Ti Mobile scores 143,870 points. That is a 121% advantage for the Instinct MI300X, more than doubling the mobile GPU’s raw compute output in this test. The margin is not close; it is a full tier of separation between a data center accelerator and a laptop part.

Looking at the Instinct MI300X against its nearest recorded rivals, the data shows it sits in a competitive band. It trails the NVIDIA H200 NVL by 5% (334,891 points) and the NVIDIA B200 by 8% (345,482 points). It beats the NVIDIA L40S by 7.5% (295,763 points) and the NVIDIA RTX 6000 Ada Generation by 10.7% (287,237 points). The Instinct MI300X also holds a 100th percentile ranking across all GPUs in the database, meaning no other recorded GPU scores higher on average. Its average benchmark score is 317,994, identical to its single Geekbench OpenCL result.

The RTX 5070 Ti Mobile, in contrast, holds an 80th percentile ranking. Its average benchmark score is 35,435 across nine recorded tests, but the OpenCL result is its strongest at 143,870. In Vulkan, it scores 139,213. The PassMark suite shows a different picture: DirectX 9 scores 259, DirectX 11 scores 237, DirectX 10 scores 151, and DirectX 12 scores 102. The GPU compute test yields 10,101, while the G3D test yields 24,004 and the G2D test yields 981. Against its nearest rivals, the RTX 5070 Ti Mobile is essentially tied with the NVIDIA Quadro GV100 (35,520, a 0.2% gap) and the AMD Radeon Pro Duo (35,860, a 1.2% gap). It edges the NVIDIA A2 by 2.1% (34,690) and trails the NVIDIA T1000 by 2.4% (36,289). These are small margins, indicating the mobile GPU lands in a crowded middle tier.

The head-to-head delta is stark. The Instinct MI300X does not merely win; it wins by a factor of 2.2 in OpenCL. No other benchmark overlaps between the two, so the database records exactly one win for the AMD part and zero for the NVIDIA part. That asymmetry drives the rest of this analysis.

Architecture Differences

The two chips are built for entirely different physical and thermal envelopes. The AMD Instinct MI300X uses the Aqua Vanjaram chip on CDNA 3.0 architecture, manufactured on a 5 nm process at TSMC. It packs 153,000 million transistors on a 1017 mm² die, giving a transistor density of 150.4 million per square millimeter. The NVIDIA GeForce RTX 5070 Ti Mobile uses the GB205 chip on Blackwell 2.0 architecture, also on a 5 nm TSMC process. It contains 31,100 million transistors on a 263 mm² die, for a density of 118.3 million per square millimeter. The Instinct MI300X has nearly five times the transistor count and a die roughly four times larger.

Clock behavior differs substantially. The Instinct MI300X runs at a 1000 MHz base and 2100 MHz boost, with memory at 1300 MHz (5.2 Gbps effective). The RTX 5070 Ti Mobile runs at a lower 847 MHz base and 1447 MHz boost, but memory clocks at 1750 MHz (28 Gbps effective). Despite the lower core clocks, the mobile GPU’s memory clock is higher in raw MHz, though the memory subsystem is much narrower.

Memory capacity and bandwidth are where the gap becomes cavernous. The Instinct MI300X has 192 GB of HBM3 on an 8192-bit bus, delivering 5.32 TB/s of bandwidth. The RTX 5070 Ti Mobile has 12 GB of GDDR7 on a 192-bit bus, delivering 672.0 GB/s. That is a 16-fold difference in capacity and roughly an 8-fold difference in bandwidth. The Instinct MI300X’s memory bus width, 8192 bits, is over 42 times wider than the mobile part’s 192 bits.

Compute resources follow the same pattern. The Instinct MI300X has 19,456 shading units and 1,216 texture mapping units. It reports 0 ROPs and a pixel rate of 0 MPixel/s, which aligns with its design as a compute accelerator without display outputs. Its texture rate is 2,553.6 GTexel/s, and FP32 throughput is 81.72 TFLOPS with FP16 at the same 81.72 TFLOPS (1:1). The RTX 5070 Ti Mobile has 5,888 shading units, 184 TMUs, and 80 ROPs. It also has 46 ray tracing cores and 184 tensor cores. Its pixel rate is 115.8 GPixel/s, texture rate is 266.2 GTexel/s, and FP32 is 17.04 TFLOPS with FP16 at 17.04 TFLOPS (1:1). The Instinct MI300X delivers 4.8 times the FP32 throughput and roughly 9.6 times the texture rate.

Power and physical design diverge sharply. The Instinct MI300X has a TDP of 750 W, requires a suggested PSU of 1150 W, and uses an OAM Module slot width with no power connectors (presumably board-level power). It has no display outputs and no API support for DirectX, OpenGL, or Vulkan. The RTX 5070 Ti Mobile has a TDP of 60 W, uses an IGP slot width, and lists display outputs as portable device dependent. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The mobile part has full graphics API support and ray tracing hardware; the data center part has none.

Release timing also differs. The Instinct MI300X launched on December 5, 2023, while the RTX 5070 Ti Mobile launched on February 28, 2025. The AMD part’s predecessor is Radeon Instinct, and the NVIDIA part’s predecessor is GeForce 40 Mobile. Both use PCIe 5.0 x16 as the bus interface.

Where Each One Wins

The data indicates a clear split by workload type. The Instinct MI300X wins in raw compute throughput, memory capacity, and memory bandwidth. Its 192 GB HBM3 pool and 5.32 TB/s bandwidth dwarf the 12 GB GDDR7 and 672.0 GB/s on the RTX 5070 Ti Mobile. For large-scale data processing, model training, or inference workloads that require massive resident datasets, the AMD accelerator has the resources to keep data on-chip without frequent host transfers. The 81.72 TFLOPS FP32 and FP16 throughput also position it for compute-bound tasks where shader count and texture rate dominate.

The RTX 5070 Ti Mobile wins in graphics-specific features and portability. It has 46 ray tracing cores and 184 tensor cores, which the Instinct MI300X lacks entirely. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, making it functional for rendering workloads, game development, and any application that relies on a graphics pipeline. The 80 ROPs and 115.8 GPixel/s pixel rate give it a rasterization capability that the AMD part does not have, as evidenced by the 0 MPixel/s pixel rate on the Instinct MI300X. The 60 W TDP versus 750 W also means the mobile GPU fits in a laptop chassis, while the Instinct MI300X requires a data center OAM module with a suggested 1150 W PSU.

Benchmark-specific wins reinforce this. The Instinct MI300X’s OpenCL score of 317,994 is its only recorded data point, and it reflects a pure compute environment. The RTX 5070 Ti Mobile’s Vulkan score of 139,213 and its PassMark DirectX scores (259 in Dx9, 237 in Dx11, 151 in Dx10, 102 in Dx12) show a part that is tuned for graphics API workloads. Its PassMark G2D score of 981 and G3D score of 24,004 further indicate a balanced 2D and 3D capability. The Instinct MI300X has no recorded graphics scores because it has no graphics outputs or API support.

The percentile ranks summarize the positioning. The Instinct MI300X sits at the 100th percentile across all GPUs, meaning it outperforms every other recorded GPU in its single benchmark. The RTX 5070 Ti Mobile sits at the 80th percentile, which is strong for a mobile part but clearly below the top tier. The nearest rival data for the RTX 5070 Ti Mobile shows it within 2.4% of the NVIDIA T1000, the AMD Radeon Pro Duo, and the NVIDIA Quadro GV100, all of which are older or smaller parts. That places it in a performance class that is respectable but not elite.

The Verdict

The database shows two products that do not compete in the same arena. The AMD Instinct MI300X is a data center accelerator optimized for massive compute and memory throughput, with no display output and no graphics API support. The NVIDIA GeForce RTX 5070 Ti Mobile is a laptop GPU designed for graphics rendering, ray tracing, and portable compute, with a 60 W power envelope. The 121% OpenCL delta in favor of the Instinct MI300X is the only direct comparison, and it reflects the fundamental difference in scale: 153,000 million transistors versus 31,100 million, 192 GB versus 12 GB, 5.32 TB/s versus 672.0 GB/s, 81.72 TFLOPS versus 17.04 TFLOPS.

For a buyer needing maximum FP32 or FP16 throughput, massive memory capacity, or the highest possible OpenCL score, the Instinct MI300X is the clear choice based on the data. It outperforms its nearest rivals by 7.5% over the L40S and 10.7% over the RTX 6000 Ada Generation, while trailing the H200 NVL by 5% and the B200 by 8%. Its 100th percentile rank means no other GPU in the database averages higher.

For a buyer needing a functional graphics card with ray tracing, tensor cores, and API support in a mobile form factor, the RTX 5070 Ti Mobile is the only viable option between these two. The Instinct MI300X has no such capabilities. The mobile part’s 80th percentile rank and its near-tie with the Quadro GV100 (0.2% gap) and Radeon Pro Duo (1.2% gap) show it delivers mid-tier performance in a low-power package. Its Vulkan score of 139,213 and PassMark G3D score of 24,004 confirm it handles modern graphics workloads.

The data does not support a single winner across all criteria. The AMD part wins decisively in compute and memory. The NVIDIA part wins in graphics features, API compatibility, and power efficiency. Any purchase decision should follow the workload: data center compute points to the Instinct MI300X, and laptop graphics points to the RTX 5070 Ti Mobile.

FAQ

Q: Which GPU has the higher Geekbench OpenCL score?

A: The AMD Instinct MI300X scores 317,994, while the NVIDIA GeForce RTX 5070 Ti Mobile scores 143,870. The AMD part leads by 121%.

Q: How much memory does each GPU have?

A: The AMD Instinct MI300X has 192 GB of HBM3, while the NVIDIA GeForce RTX 5070 Ti Mobile has 12 GB of GDDR7.

Q: Does the AMD Instinct MI300X support ray tracing?

A: No. The Instinct MI300X has no ray tracing cores and no graphics API support. The RTX 5070 Ti Mobile has 46 ray tracing cores and supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

Q: What are the power requirements for each?

A: The AMD Instinct MI300X has a 750 W TDP and requires a suggested 1150 W PSU. The NVIDIA GeForce RTX 5070 Ti Mobile has a 60 W TDP with no suggested PSU listed.

Q: How does the RTX 5070 Ti Mobile compare to its nearest rivals?

A: It is within 2.4% of the NVIDIA T1000 (trailing), within 1.2% of the AMD Radeon Pro Duo (trailing), within 0.2% of the NVIDIA Quadro GV100 (trailing), and 2.1% ahead of the NVIDIA A2.

Q: What does the 100th percentile ranking mean for the Instinct MI300X?

A: It means the Instinct MI300X outscores every other GPU in the database on average. The RTX 5070 Ti Mobile ranks at the 80th percentile.