MI250X vs RTX 3070

CDNA 2vsAmpereUpdated 36 days ago

The MI250X emerges as the clear winner for most AI and HPC use cases: its 383 TFLOPS compute, 128 GB VRAM, and 3277 GB/s bandwidth outperform the RTX 3070's 20.3 TFLOPS and 8 GB by orders of magnitude, justifying $1.46 per hour average for professional throughput despite higher cost.

MI250X from $1.28/hr

Specifications Compared

SpecMI250XRTX-3070
TDP560W220W
VRAM128 GB8 GB
Memory TypeHBM2eGDDR6
ArchitectureCDNA 2Ampere
Form FactorsOAMPCIe
InterconnectInfinity Fabric
FP16 Performance383 TFLOPS20.3 TFLOPS
FP32 Performance383 TFLOPS20.3 TFLOPS
FP64 Performance48 TFLOPS
Memory Bandwidth3,277 GB/s448 GB/s

Performance Analysis

Raw compute power differentiates these GPUs profoundly: the MI250X achieves 383 TFLOPS in FP16 and FP32, nearly 19 times the RTX 3070's 20.3 TFLOPS in both precisions. This gap translates to dramatically faster model training and inference on the MI250X, where FP16 enables accelerated half-precision computations common in deep learning frameworks like PyTorch. For training large neural networks, the MI250X processes iterations in fractions of the time required by the RTX 3070. Memory capacity and bandwidth further amplify this: 128 GB HBM2e at 3277 GB/s on the MI250X supports massive batch sizes and complex models without swapping, unlike the RTX 3070's 8 GB GDDR6 at 448 GB/s, which limits datasets to smaller scales and risks out-of-memory errors. In inference scenarios, higher bandwidth reduces latency for high-throughput serving. Power draw reflects their roles: MI250X at 560W suits data centers, while RTX 3070 at 220W fits consumer setups. Overall, spec deltas favor MI250X for professional AI pipelines demanding scale.

Live Cloud Pricing

Real-time prices from 25+ providers. Updated every 60 seconds.

MI250X

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Cirrascale
Cirrascale
4×AMD Instinct MI250X
128GB VRAM
$1.28/GPU/hr
$5.12/hr total (4×)
Cirrascale
Cirrascale
4×AMD Instinct MI250X
128GB VRAM
$1.44/GPU/hr
$5.76/hr total (4×)
Cirrascale
Cirrascale
4×AMD Instinct MI250X
128GB VRAM
$1.52/GPU/hr
$6.08/hr total (4×)
Cirrascale
Cirrascale
4×AMD Instinct MI250X
128GB VRAM
$1.60/GPU/hr
$6.40/hr total (4×)

Compare real-time pricing across 25+ providers

When to Choose the MI250X

Opt for the MI250X in large-scale AI training or scientific simulations: its 383 TFLOPS FP16/FP32 and 128 GB HBM2e handle models exceeding 8 GB VRAM, enabling batch sizes that leverage 3277 GB/s bandwidth. Cloud users facing $1.28 per hour costs benefit when workloads saturate the RTX 3070's 20.3 TFLOPS and 448 GB/s limits. Infinity Fabric interconnect supports multi-GPU clusters for distributed computing.

When to Choose the RTX 3070

Select the RTX 3070 for cost-sensitive prototyping or gaming-integrated ML: at $0.04 per hour average $0.08, it delivers 20.3 TFLOPS FP32 sufficient for small models fitting in 8 GB GDDR6. Lower 220W TDP eases deployment in PCIe form factors without data center infrastructure. It suits inference on lightweight networks where bandwidth of 448 GB/s suffices.

Use Cases

LLM Training
MI250X

MI250X's 128 GB HBM2e VRAM and 383 TFLOPS FP16 support massive language models with large batch sizes, far beyond RTX 3070's 8 GB limit.

LLM Inference
MI250X

3277 GB/s bandwidth on MI250X enables high-throughput serving of large LLMs; RTX 3070's 448 GB/s suits only smaller models.

Fine-tuning
MI250X

383 TFLOPS FP32 accelerates fine-tuning on datasets requiring over 8 GB VRAM, where RTX 3070 bottlenecks occur.

Stable Diffusion
RTX 3070

RTX 3070's 20.3 TFLOPS and $0.04 per hour pricing handle image generation efficiently for individuals; MI250X overkill at $1.28 per hour.

Scientific Computing
MI250X

MI250X's 383 TFLOPS and Infinity Fabric excel in simulations needing high memory bandwidth of 3277 GB/s.

Frequently Asked Questions

Which has more VRAM: MI250X or RTX 3070?

MI250X provides 128 GB HBM2e VRAM, compared to RTX 3070's 8 GB GDDR6. This enables MI250X to manage much larger models and datasets without issues.

How do their TFLOPS compare?

MI250X delivers 383 TFLOPS in FP16 and FP32, versus RTX 3070's 20.3 TFLOPS in both. The MI250X offers approximately 19 times the compute performance.

What is the memory bandwidth difference?

MI250X achieves 3277 GB/s with HBM2e, while RTX 3070 reaches 448 GB/s on GDDR6. Higher bandwidth on MI250X supports larger batch sizes in training.

Which is cheaper in the cloud?

RTX 3070 starts at $0.04 per hour with $0.08 average across six offers; MI250X at $1.28 per hour averaging $1.46 across four. RTX 3070 wins on cost.

What are their TDPs?

MI250X consumes 560W, suited for data centers; RTX 3070 uses 220W, ideal for consumer or edge deployments.

Can RTX 3070 handle AI training?

RTX 3070 manages small-scale training with 20.3 TFLOPS and 8 GB VRAM, but struggles with models over that capacity compared to MI250X's 128 GB.

Which is cheaper to rent, the MI250X or the RTX 3070?

Cloud rental prices for both the MI250X and RTX 3070 vary by provider, configuration, and availability. This page shows live pricing from 25+ providers updated every 60 seconds. Scroll to the Live Cloud Pricing section to compare current rates.

How much VRAM does the MI250X have compared to the RTX 3070?

The MI250X has 128 GB of HBM2e memory. The RTX 3070 has 8 GB of GDDR6 memory.

Can I find MI250X and RTX 3070 GPUs available to rent right now?

Yes. This page shows real-time availability across 25+ cloud GPU providers. The Live Cloud Pricing section displays only in-stock offers with current pricing.

What is the main difference between the MI250X and the RTX 3070?

The MI250X uses the CDNA 2 architecture (2021) while the RTX 3070 uses Ampere (2020). The MI250X delivers 18.9x the FP16 throughput and 7.3x the memory bandwidth of the RTX 3070.