AMD Instinct MI300 vs NVIDIA GeForce RTX 4070 Comparison

Where Each One Wins

The AMD Instinct MI300 and NVIDIA GeForce RTX 4070 occupy fundamentally different positions in the GPU landscape, and the recorded data reflects that split clearly. The MI300 is a compute-oriented accelerator with no display outputs, no graphics API support, and a benchmark suite that is empty in the database. The RTX 4070, by contrast, is a fully featured consumer graphics card with DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4, and a full set of benchmark results across DirectX 9, 10, 11, 12, compute, and general-purpose tests.

The MI300 wins on raw compute resources and memory capacity. It delivers 47.87 TFLOPS of FP32 performance, which is 64.2% higher than the RTX 4070's 29.15 TFLOPS. Its 128 GB of HBM3 memory with 5.32 TB/s bandwidth dwarfs the RTX 4070's 12 GB GDDR6X at 504.2 GB/s. The MI300 also has 14,080 shading units compared to 5,888, and 880 texture mapping units versus 184. These are the numbers that matter for large-scale scientific computation, AI training, and data center workloads.

The RTX 4070 wins on every measurable benchmark category in the database. It has a percentile ranking of 81 among all GPUs, while the MI300 sits at 50. The RTX 4070's average benchmark score is 37,648, and its nearest rivals cluster tightly around that number: the NVIDIA Tesla P4 scores 37,628 (0.1% behind), the AMD Radeon RX Vega 56 scores 37,507 (0.4% behind), and the AMD Radeon PRO W6400 scores 37,157 (1.3% behind). The RTX 4080 Mobile scores 38,135, which is 1.3% ahead of the RTX 4070. The MI300 has no benchmark scores recorded, no rivals listed, and an average score of zero.

For gaming and consumer graphics workloads, the RTX 4070 is the only option with relevant data. Its pixel rate of 158.4 GPixel/s, texture rate of 455.4 GTexel/s, and 46 ray tracing cores position it for modern gaming workloads. The MI300 has a pixel rate of 0 MPixel/s and no ray tracing cores, confirming it is not designed for rasterized or ray-traced graphics output.

FAQ

Q: Which GPU has more raw compute throughput?

A: The AMD Instinct MI300 delivers 47.87 TFLOPS of FP32 performance, which is 64.2% higher than the NVIDIA GeForce RTX 4070's 29.15 TFLOPS. Both GPUs achieve a 1:1 FP16 to FP32 ratio.

Q: What memory configurations do the two cards use?

A: The MI300 has 128 GB of HBM3 memory on an 8192-bit bus with 5.32 TB/s bandwidth. The RTX 4070 has 12 GB of GDDR6X memory on a 192-bit bus with 504.2 GB/s bandwidth.

Q: Does the MI300 support any graphics APIs?

A: No. The MI300 lists DirectX, OpenGL, and Vulkan as N/A, and has no display outputs. The RTX 4070 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, with 1x HDMI 2.1 and 3x DisplayPort 1.4a outputs.

Q: How do the benchmark scores compare?

A: The RTX 4070 has an average benchmark score of 37,648 across ten tests, including 3DMark Steel Nomad DX12 at 3,854, Geekbench OpenCL at 154,858, and Passmark G3D at 26,927. The MI300 has no recorded benchmark scores in the database.

Q: What are the power requirements?

A: The MI300 has a TDP of 600 W with dual 8-pin power connectors and a suggested PSU of 1000 W. The RTX 4070 has a TDP of 200 W with a single 16-pin connector and a suggested PSU of 550 W.

Q: Which card has a higher transistor count?

A: The MI300 packs 153,000 million transistors on a 1017 mm² die, while the RTX 4070 has 35,800 million transistors on a 294 mm² die. The MI300 achieves 150.4M transistors per mm² versus 121.8M per mm² for the RTX 4070.

Head-to-Head Benchmarks

The database records no head-to-head benchmark results between these two GPUs. The MI300 has zero wins in the head-to-head comparison, and the RTX 4070 also has zero wins, because no direct comparative tests exist. This absence is itself informative, as it reflects the different target markets and testing methodologies for the two products.

The RTX 4070's benchmark suite provides a complete picture of consumer graphics performance. Its 3DMark Steel Nomad DX12 score of 3,854 demonstrates modern DirectX 12 capability. The Geekbench OpenCL score of 154,858 and Vulkan score of 174,152 show strong cross-platform compute and graphics performance. Passmark tests cover legacy APIs: DirectX 9 scores 320, DirectX 10 scores 139, DirectX 11 scores 244, and DirectX 12 scores 103. The Passmark G2D score of 1,164 and G3D score of 26,927 represent 2D and 3D rendering workloads respectively. The GPU compute score of 14,720 indicates general-purpose compute performance.

The MI300's specification sheet tells a different story. Its FP32 throughput of 47.87 TFLOPS exceeds the RTX 4070 by a wide margin, and its texture rate of 1,496.0 GTexel/s is more than three times the RTX 4070's 455.4 GTexel/s. The memory bandwidth advantage is even more pronounced: 5.32 TB/s versus 504.2 GB/s, a difference of roughly 10.5 times. The MI300's 8192-bit memory bus compared to the RTX 4070's 192-bit bus reflects the accelerator's design for massive data movement.

The RTX 4070's nearest rivals in the database all sit within 1.3% of its average score. The Tesla P4 is essentially tied at 0.1% behind, the RX Vega 56 is 0.4% behind, and the PRO W6400 is 1.3% behind. The RTX 4080 Mobile leads by 1.3%. This clustering shows the RTX 4070 sits in a competitive segment where small percentage differences separate products.

Specification Differences

The two GPUs differ across nearly every measurable specification. Process node and foundry are identical: both use 5 nm TSMC. The similarity ends there.

Transistor counts differ dramatically. The MI300 integrates 153,000 million transistors, while the RTX 4070 has 35,800 million. Die size follows the same pattern: 1017 mm² for the MI300 versus 294 mm² for the RTX 4070. Transistor density favors the MI300 at 150.4M per mm² versus 121.8M per mm².

Clock speeds show the RTX 4070 running faster. Its base clock is 1920 MHz with a boost of 2475 MHz, while the MI300 has a 1000 MHz base and 1700 MHz boost. Memory clocks differ in type: the MI300 runs at 1300 MHz with 5.2 Gbps effective, while the RTX 4070 runs at 1313 MHz with 21 Gbps effective.

Memory configuration is a major differentiator. The MI300 uses 128 GB HBM3 on an 8192-bit bus. The RTX 4070 uses 12 GB GDDR6X on a 192-bit bus. Bandwidth is 5.32 TB/s versus 504.2 GB/s.

Compute unit counts diverge substantially. The MI300 has 14,080 shading units, 880 TMUs, and 0 ROPs. The RTX 4070 has 5,888 shading units, 184 TMUs, and 64 ROPs. The RTX 4070 includes 46 ray tracing cores and 184 tensor cores, while the MI300 lists neither.

Pixel and texture rates reflect their different roles. The MI300 has a 0 MPixel/s pixel rate and 1,496.0 GTexel/s texture rate. The RTX 4070 produces 158.4 GPixel/s and 455.4 GTexel/s.

Power and physical specifications differ substantially. The MI300 has a 600 W TDP, dual 8-pin connectors, and a 1000 W suggested PSU. The RTX 4070 has a 200 W TDP, a single 16-pin connector, and a 550 W suggested PSU. The MI300 measures 267 mm by 111 mm, while the RTX 4070 measures 240 mm by 110 mm by 40 mm and is dual-slot.

Bus interface and outputs also differ. The MI300 uses PCIe 5.0 x16 with no display outputs. The RTX 4070 uses PCIe 4.0 x16 with 1x HDMI 2.1 and 3x DisplayPort 1.4a.

Architecture Differences

The MI300 uses AMD's CDNA 3.0 architecture, built on the Aqua Vanjaram chip. It belongs to the Instinct (MIx) generation and lists Radeon Instinct as its predecessor. The RTX 4070 uses NVIDIA's Ada Lovelace architecture, built on the AD104 chip, and belongs to the GeForce 40 generation with GeForce 30 as its predecessor and GeForce 50 as its successor.

These architectures target entirely different workloads. CDNA 3.0 is AMD's compute-focused architecture, optimized for data center accelerators. Ada Lovelace is NVIDIA's consumer graphics architecture, designed for gaming and workstation graphics with dedicated ray tracing and tensor hardware.

The MI300's lack of ROPs, ray tracing cores, and tensor cores in the database reflects its compute-only design. It has no display outputs and no graphics API support, meaning it cannot drive a monitor or run conventional graphics workloads. Its 128 GB HBM3 memory and 5.32 TB/s bandwidth exist to feed massive compute arrays, not to buffer frames for display.

The RTX 4070's architecture includes 46 ray tracing cores and 184 tensor cores, enabling hardware-accelerated ray tracing and AI-based features like DLSS. Its 64 ROPs and 158.4 GPixel/s pixel rate handle traditional rasterization, while its DirectX 12 Ultimate support indicates readiness for current-generation gaming features.

The MI300's release date of January 3, 2023, predates the RTX 4070's April 11, 2023, release by roughly three months. Both use TSMC's 5 nm process, but the MI300's much larger die and higher transistor count indicate a more complex design aimed at a different market segment.

The RTX 4070 carries a launch MSRP of 599 USD. Its production status is end-of-life, while the MI300's production status is not recorded.

The Verdict

The data supports a clear division of roles. The AMD Instinct MI300 is a data center compute accelerator with massive memory capacity, enormous bandwidth, and high FP32 throughput. Its 47.87 TFLOPS and 5.32 TB/s bandwidth serve workloads that require moving and processing vast datasets. The absence of display outputs and graphics APIs confirms it is not a consumer product.

The NVIDIA GeForce RTX 4070 is a consumer graphics card with a complete feature set for gaming and workstation graphics. Its benchmark scores place it in the 81st percentile of all GPUs, with an average score of 37,648. Its nearest competitors in the database, including the Tesla P4, RX Vega 56, and PRO W6400, all fall within 1.3% of its score, indicating a tightly contested performance tier.

For buyers needing a GPU for gaming, content creation, or any workload requiring visual output, the RTX 4070 is the only viable choice based on the recorded data. It has display outputs, full API support, and a comprehensive benchmark suite demonstrating performance across DirectX versions, OpenCL, Vulkan, and compute workloads.

For buyers needing an accelerator for large-scale compute tasks where memory capacity and bandwidth are paramount, the MI300's specifications speak clearly. Its 128 GB memory, 8192-bit bus, and 5.32 TB/s bandwidth are orders of magnitude beyond the RTX 4070's capabilities. Its 600 W TDP and 1000 W suggested PSU indicate it belongs in a server chassis with appropriate power delivery.

The RTX 4070's end-of-life production status and the MI300's unspecified production status suggest both are products that have been superseded. The RTX 4070's successor is listed as GeForce 50, while the MI300 has no successor recorded.

The benchmark data contains no direct comparison between the two, and none is needed. These GPUs serve different markets with different requirements. The MI300 wins on raw compute resources and memory capacity. The RTX 4070 wins on graphics features, driver support, and measured benchmark performance. Each is the appropriate choice for its intended workload, and neither can substitute for the other in the database's recorded measurements.