GTX 1080 vs RTX A6000

PascalvsAmpereUpdated 36 days ago

The RTX A6000 emerges as the superior choice for most machine learning use cases: its 48 GB VRAM, 38.7 TFLOPS compute, and 768 GB/s bandwidth handle modern large models infeasible on the GTX 1080's 8 to 11 GB and 8.9 TFLOPS. Despite higher average pricing at $1.09 per hour, performance gains outweigh costs for training and inference.

GTX 1080 from $0.30/hrRTX A6000 from $0.40/hr

Specifications Compared

SpecGTX-1080RTX-A6000
TDP180W300W
VRAM8-11 GB48 GB
CUDA Cores2,56010,752
Memory TypeGDDR5XGDDR6
ArchitecturePascalAmpere
Form FactorsPCIePCIe
InterconnectNVLink
FP16 Performance8.9 TFLOPS38.7 TFLOPS
FP32 Performance8.9 TFLOPS38.7 TFLOPS
Memory Bandwidth320 GB/s768 GB/s

Performance Analysis

The RTX A6000's 38.7 TFLOPS in FP16 and FP32 dwarfs the GTX 1080's 8.9 TFLOPS, enabling roughly four times faster matrix operations critical for deep learning training and inference. Training large models benefits from this compute density: the A6000 processes batches quicker, reducing epoch times significantly. Inference sees similar gains, with higher FLOPS supporting more concurrent requests on large language models.

Memory specifications define workload feasibility: the A6000's 48 GB VRAM handles models exceeding 11 GB, such as those with billions of parameters, while the GTX 1080 limits users to smaller architectures or gradient checkpointing. Bandwidth at 768 GB/s on the A6000, versus 320 GB/s, sustains larger batch sizes by accelerating data transfers, minimizing bottlenecks in memory-bound tasks like transformer training.

Power and interconnects add context. The A6000's 300 W TDP demands robust cooling and higher electricity costs compared to 180 W, but NVLink enables multi-GPU scaling absent on the GTX 1080, ideal for distributed training.

Live Cloud Pricing

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

GTX 1080

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

RTX A6000

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
TensorDock
TensorDock
NVIDIA RTX A6000
48GB VRAM
$0.40/GPU/hr
Available
RunPod
RunPod
NVIDIA RTX A6000
48GB VRAM
$0.49/GPU/hr
Hyperstack
Hyperstack
NVIDIA RTX A6000
48GB VRAM
$0.50/GPU/hr
Available
Hyperstack
Hyperstack
2×NVIDIA RTX A6000
48GB VRAM
$0.50/GPU/hr
$1.00/hr total (2×)
Available
Massed Compute
Massed Compute
2×NVIDIA RTX A6000
48GB VRAM
$0.55/GPU/hr
$1.10/hr total (2×)
Available

Compare real-time pricing across 25+ providers

When to Choose the GTX 1080

Opt for the GTX 1080 in power-constrained or ultra-budget cloud setups: its 180 W TDP and starting price of $0.30 per hour suit light prototyping or inference on models under 8 GB. Legacy Pascal-optimized code runs natively without recompilation, and with only two cloud offers averaging $0.45 per hour, it avoids the RTX A6000's higher average of $1.09 per hour for intermittent tasks.

When to Choose the RTX A6000

Choose the RTX A6000 for demanding professional workloads: 48 GB VRAM accommodates large models like 30B-parameter LLMs, and 38.7 TFLOPS accelerates training four times over the GTX 1080. NVLink supports multi-GPU configurations, while 768 GB/s bandwidth enables massive batch sizes; abundant availability across 55 offers justifies the $1.09 per hour average for production-scale AI.

Use Cases

LLM Training
RTX A6000

The RTX A6000's 48 GB VRAM fits large LLMs exceeding 11 GB, while 38.7 TFLOPS speeds training four times faster than the GTX 1080's 8.9 TFLOPS.

LLM Inference
RTX A6000

48 GB VRAM on the RTX A6000 supports quantized large models for high-throughput serving; 768 GB/s bandwidth handles bigger batches than the GTX 1080's 320 GB/s.

Fine-tuning
RTX A6000

Ampere architecture and 38.7 TFLOPS enable efficient fine-tuning of models up to 48 GB; NVLink scales multi-GPU setups unavailable on the GTX 1080.

Stable Diffusion
Either

GTX 1080 suffices for basic image generation under 8 GB VRAM at 8.9 TFLOPS; RTX A6000 excels with 48 GB for high-res batch processing at 38.7 TFLOPS.

Scientific Computing
RTX A6000

RTX A6000's 768 GB/s bandwidth and 38.7 TFLOPS FP32 accelerate simulations; 48 GB VRAM manages large datasets beyond GTX 1080's 11 GB limit.

Frequently Asked Questions

Which GPU has more VRAM?

The RTX A6000 provides 48 GB GDDR6 VRAM, far exceeding the GTX 1080's 8 to 11 GB GDDR5X. This allows the A6000 to load larger models without offloading. GTX 1080 suits smaller workloads only.

How do their compute performances compare?

RTX A6000 achieves 38.7 TFLOPS in FP16 and FP32, over four times the GTX 1080's 8.9 TFLOPS per precision. This translates to faster training and inference. Real-world speedups reach 3 to 5x depending on the task.

What are the cloud rental prices?

GTX 1080 rents from $0.30 per hour, averaging $0.45 across two offers. RTX A6000 starts at $0.25 per hour but averages $1.09 across 55 offers. Availability favors the A6000.

Which is better for large model training?

RTX A6000 excels with 48 GB VRAM and 38.7 TFLOPS for models over 11 GB. GTX 1080 limits batch sizes due to 8.9 TFLOPS and lower bandwidth. Use A6000 for production training.

Do they support multi-GPU setups?

RTX A6000 includes NVLink for high-speed multi-GPU interconnects. GTX 1080 relies on PCIe only, lacking dedicated linking. This makes A6000 preferable for scaling.

What is the power consumption difference?

GTX 1080 draws 180 W TDP, lower than RTX A6000's 300 W. Lower power aids budget cooling setups. A6000's draw supports higher performance density.

Which is cheaper to rent, the GTX 1080 or the RTX A6000?

Cloud rental prices for both the GTX 1080 and RTX A6000 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 RTX A6000?

The GTX 1080 has 8 to 11 GB of GDDR5X memory. The RTX A6000 has 48 GB of GDDR6 memory.

Can I find GTX 1080 and RTX A6000 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 RTX A6000?

The GTX 1080 uses the Pascal architecture (2016) while the RTX A6000 uses Ampere (2020). The RTX A6000 delivers 4.3x the FP16 throughput and 2.4x the memory bandwidth of the GTX 1080.