GTX 1080 Ti vs MI325X

PascalvsCDNA 3Updated 35 days ago

The AMD Instinct MI325X dominates for prevalent AI tasks like training and inference. Delivering 1307 TFLOPS FP16 and 6000 GB/s bandwidth against the GTX 1080 Ti's 8.9 TFLOPS and 320 GB/s, it processes modern workloads orders of magnitude faster, rendering the older GPU obsolete for production despite lower cost.

GTX 1080 Ti from $0.30/hr

Specifications Compared

SpecGTX-1080MI325X
TDP180W750W
VRAM8-11 GB256 GB
CUDA Cores2,560
Memory TypeGDDR5XHBM3e
ArchitecturePascalCDNA 3
Form FactorsPCIeOAM
InterconnectInfinity Fabric
FP16 Performance8.9 TFLOPS1,307 TFLOPS
FP32 Performance8.9 TFLOPS1307 TFLOPS
Memory Bandwidth320 GB/s6,000 GB/s

Performance Analysis

Compute capabilities differ dramatically: the MI325X achieves 1307 TFLOPS in FP16 and FP32, exceeding the GTX 1080 Ti's 8.9 TFLOPS by a factor of 147. This superiority accelerates deep learning training, where FP16 reduces precision for faster matrix operations without significant accuracy loss, and inference, enabling real-time predictions on complex models. The GTX 1080 Ti struggles with contemporary model sizes due to its limited throughput. Memory bandwidth presents another chasm: 6000 GB/s on the MI325X versus 320 GB/s on the GTX 1080 Ti supports massive batch sizes in training loops, minimizing data loading bottlenecks and improving GPU utilization. The MI325X's 256 GB VRAM holds entire large language models, avoiding fragmentation, while the GTX 1080 Ti's 8 to 11 GB restricts it to smaller batches or older networks. Power draw reflects intent: 750W for the MI325X sustains peak performance, against 180W for efficient, low-scale use on the GTX 1080 Ti.

Live Cloud Pricing

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

GTX 1080 Ti

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
LeaderGPU
LeaderGPU
4×NVIDIA GeForce GTX 1080
8GB VRAM
$0.30/GPU/hr
$1.20/hr total (4×)
Available
LeaderGPU
LeaderGPU
8×NVIDIA GeForce GTX 1080 Ti
11GB VRAM
$0.60/GPU/hr
$4.80/hr total (8×)
Available

Compare real-time pricing across 25+ providers

When to Choose the GTX 1080 Ti

The GTX 1080 Ti fits scenarios demanding low cost and minimal power. At $0.60 per hour in the cloud with 180W TDP, it handles basic inference or prototyping on models fitting within 8 to 11 GB VRAM and 320 GB/s bandwidth. Hobbyists or developers testing legacy codebases prefer its PCIe form factor and availability over unavailable alternatives.

When to Choose the MI325X

Opt for the MI325X in high-performance AI environments. Its 1307 TFLOPS FP16, 256 GB HBM3e VRAM, and 6000 GB/s bandwidth excel for training or inferring massive models via Infinity Fabric interconnect and OAM form factor. Data centers prioritize it despite 750W TDP for workloads scaling beyond consumer GPUs.

Use Cases

LLM Training
MI325X

MI325X's 256 GB VRAM and 1307 TFLOPS FP16 handle large-scale training batches, unlike GTX 1080 Ti's 8-11 GB limit and 8.9 TFLOPS.

LLM Inference
MI325X

The 6000 GB/s bandwidth and 2614 TFLOPS FP8 on MI325X enable high-throughput serving; GTX 1080 Ti's 320 GB/s bottlenecks real-time queries.

Fine-tuning
MI325X

MI325X supports full model fine-tuning with 256 GB VRAM; GTX 1080 Ti requires heavy quantization due to 8-11 GB constraint.

Stable Diffusion
Either

GTX 1080 Ti suffices for small image generations at 8.9 TFLOPS; MI325X accelerates batch processing with superior bandwidth.

Scientific Computing
MI325X

MI325X's 1307 TFLOPS FP32 and Infinity Fabric suit simulations; GTX 1080 Ti's 8.9 TFLOPS limits complex datasets.

Frequently Asked Questions

How much VRAM does the GTX 1080 Ti have compared to MI325X?

The GTX 1080 Ti provides 8 to 11 GB GDDR5X VRAM. The MI325X offers 256 GB HBM3e, enabling 23 to 32 times more capacity for large models.

What are the FP32 performance figures for these GPUs?

GTX 1080 Ti delivers 8.9 TFLOPS FP32. MI325X reaches 1307 TFLOPS FP32, a 147-fold increase for compute-intensive tasks.

Which GPU has higher memory bandwidth?

MI325X achieves 6000 GB/s with HBM3e. GTX 1080 Ti manages 320 GB/s GDDR5X, limiting data transfer speeds.

What is the cloud pricing for GTX 1080 Ti versus MI325X?

GTX 1080 Ti starts at $0.60 per hour across live offers. MI325X has no current cloud pricing available.

How do TDPs compare between GTX 1080 Ti and MI325X?

GTX 1080 Ti consumes 180W. MI325X requires 750W, reflecting its data center optimization for sustained high performance.

What architectures power these GPUs?

GTX 1080 Ti uses Pascal from 2016. MI325X employs CDNA 3 from 2024, tailored for AI acceleration.

Which is cheaper to rent, the GTX 1080 or the MI325X?

Cloud rental prices for both the GTX 1080 and MI325X 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 GTX 1080 have compared to the MI325X?

The GTX 1080 has 8 to 11 GB of GDDR5X memory. The MI325X has 256 GB of HBM3e memory.

Can I find GTX 1080 and MI325X 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 GTX 1080 and the MI325X?

The GTX 1080 uses the Pascal architecture (2016) while the MI325X uses CDNA 3 (2024). The MI325X delivers 146.9x the FP16 throughput and 18.8x the memory bandwidth of the GTX 1080.

GTX 1080 Ti vs MI325X: NVIDIA 11GB vs AMD 256GB | GPUPerHour