MI250X vs RTX 4000 Ada

CDNA 2vsAda LovelaceUpdated 35 days ago

The MI250X emerges as the winner for most common AI and HPC use cases: its 383 TFLOPS compute, 128 GB VRAM, and 3277 GB/s bandwidth outperform RTX 4000 Ada's 26.7 TFLOPS, 20 GB, and 360 GB/s by wide margins, enabling large-scale training and inference despite higher $1.46/hr average cost.

MI250X from $1.28/hrRTX 4000 Ada from $0.26/hr

Specifications Compared

SpecMI250XRTX-4000-ADA
TDP560W130W
VRAM128 GB20 GB
Memory TypeHBM2eGDDR6
ArchitectureCDNA 2Ada Lovelace
Form FactorsOAMPCIe
InterconnectInfinity Fabric
FP16 Performance383 TFLOPS26.7 TFLOPS
FP32 Performance383 TFLOPS26.7 TFLOPS
FP64 Performance48 TFLOPS
Memory Bandwidth3,277 GB/s360 GB/s

Performance Analysis

Compute performance shows a stark gap: MI250X achieves 383 TFLOPS in FP16 and FP32, while RTX 4000 Ada reaches 26.7 TFLOPS in both, yielding over 14 times advantage for MI250X. This delta translates to faster training and inference for MI250X in AI workloads, as higher throughput processes larger datasets quicker. Balanced FP16/FP32 ratios on both GPUs suit mixed-precision training without bottlenecks in either precision.

Memory specs further differentiate them: MI250X's 128 GB HBM2e at 3277 GB/s bandwidth supports massive batch sizes and models exceeding 20 GB GDDR6 capacity of RTX 4000 Ada at 360 GB/s. Higher bandwidth reduces data transfer delays, enabling larger batches in training and sustaining inference throughput for complex models. In real-world terms, MI250X excels in memory-intensive tasks like large language model training, while RTX 4000 Ada handles smaller batches efficiently.

Power draw impacts deployment: MI250X's 560W TDP demands robust cooling versus RTX 4000 Ada's 130W, influencing cloud instance costs and density.

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×)

RTX 4000 Ada

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
RunPod
RunPod
NVIDIA RTX 4000 Ada Generation
20GB VRAM
$0.26/GPU/hr
Vast.ai
Vast.ai
NVIDIA RTX 4000 Ada Generation
20GB VRAM
$0.40/GPU/hr
Available
RunPod
RunPod
NVIDIA RTX 4000 Ada Generation
20GB VRAM
$0.44/GPU/hr
RunPod
RunPod
NVIDIA RTX 4000 Ada Generation
20GB VRAM
$0.57/GPU/hr

Compare real-time pricing across 25+ providers

When to Choose the MI250X

Choose the MI250X for workloads requiring extreme scale: its 128 GB HBM2e VRAM accommodates models too large for 20 GB limits, such as training billion-parameter LLMs. The 383 TFLOPS FP16/FP32 performance and 3277 GB/s bandwidth enable high-batch training and simulations in scientific computing. At $1.28/hr average $1.46/hr, it suits enterprises prioritizing speed over cost in datacenter environments with Infinity Fabric interconnects.

When to Choose the RTX 4000 Ada

Opt for RTX 4000 Ada in budget-conscious or low-power scenarios: its $0.09/hr starting price (average $0.22/hr) delivers value for prototyping and inference on models fitting 20 GB VRAM. The 130W TDP fits dense workstation or edge deployments via PCIe form factor, avoiding 560W infrastructure needs. It performs adequately at 26.7 TFLOPS for fine-tuning smaller models or Stable Diffusion tasks.

Use Cases

LLM Training
MI250X

MI250X's 128 GB VRAM and 383 TFLOPS FP16 handle massive models and batches infeasible on RTX 4000 Ada's 20 GB and 26.7 TFLOPS.

LLM Inference
MI250X

High 3277 GB/s bandwidth supports large-batch inference on big models; RTX 4000 Ada's 360 GB/s limits scale.

Fine-tuning
MI250X

128 GB capacity fits full model fine-tuning; 14x compute advantage over 26.7 TFLOPS accelerates iterations.

Stable Diffusion
RTX 4000 Ada

RTX 4000 Ada's 20 GB VRAM suffices for image generation at 26.7 TFLOPS; lower $0.22/hr cost beats MI250X for lighter loads.

Scientific Computing
MI250X

383 TFLOPS FP32 and Infinity Fabric excel in simulations; 560W TDP suits HPC clusters over RTX 4000 Ada's workstation focus.

Frequently Asked Questions

Which GPU has more VRAM, MI250X or RTX 4000 Ada?

The MI250X provides 128 GB HBM2e VRAM, exceeding RTX 4000 Ada's 20 GB GDDR6 by over six times. This enables larger models on MI250X. Bandwidth also favors MI250X at 3277 GB/s versus 360 GB/s.

How do FP16 performance levels compare?

MI250X delivers 383 TFLOPS FP16, while RTX 4000 Ada offers 26.7 TFLOPS, a 14-fold difference. This impacts AI training speed significantly. FP32 matches these figures on both.

What are the cloud pricing differences?

RTX 4000 Ada starts at $0.09/hr (average $0.22/hr) across 9 offers, cheaper than MI250X's $1.28/hr (average $1.46/hr) across 4 offers. Price reflects performance gap. Choose based on workload scale.

Which has higher power consumption?

MI250X requires 560W TDP, far above RTX 4000 Ada's 130W. This affects cooling and instance costs. RTX 4000 Ada suits low-power setups.

Are these GPUs suited for datacenter use?

MI250X in OAM form with Infinity Fabric targets datacenters, unlike PCIe-based RTX 4000 Ada for workstations. MI250X handles HPC better. Both appear in cloud listings.

When is RTX 4000 Ada preferable?

RTX 4000 Ada excels in cost-sensitive tasks with its $0.09/hr pricing and 130W TDP. It fits 20 GB models adequately at 26.7 TFLOPS. Avoid for VRAM-heavy jobs.

Which is cheaper to rent, the MI250X or the RTX 4000 Ada?

Cloud rental prices for both the MI250X and RTX 4000 Ada 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 4000 Ada?

The MI250X has 128 GB of HBM2e memory. The RTX 4000 Ada has 20 GB of GDDR6 memory.

Can I find MI250X and RTX 4000 Ada 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 4000 Ada?

The MI250X uses the CDNA 2 architecture (2021) while the RTX 4000 Ada uses Ada Lovelace (2023). The MI250X delivers 14.3x the FP16 throughput and 9.1x the memory bandwidth of the RTX 4000 Ada.

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