GPU Comparison

Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.

Workstation Verdict

The RTX 6000 Ada Generation has more VRAM (48GB vs 16GB), making it better suited for large models and memory-intensive workloads. Its memory bandwidth is 114% higher (960 GB/s vs 448 GB/s), translating directly to faster inference throughput.

Maximum Capacity Reached. Remove a model to add another. (2/2)

VS
Price
Awaiting Data
VRAM
48 GB GDDR6
Mem. Speed
960 GB/s
FP32 Compute
91.1 TFLOPS
Key Specs Advantage
+374% FP32 (TFLOPS) (91.1 TFLOPS vs 19.2 TFLOPS)
+196% CUDA Cores (18,176 vs 6,144)
+114% Bandwidth (960 GB/s vs 448 GB/s)
NVIDIA
RTX A4000
Price
£945
VRAM
16 GB GDDR6
Mem. Speed
448 GB/s
FP32 Compute
19.2 TFLOPS
Key Specs Advantage

Comparable or lower specs

RTX 6000 Ada Generation vs RTX A4000: In-Depth Breakdown

VRAM: RTX 6000 Ada Generation vs RTX A4000

The RTX 6000 Ada Generation carries 48GB of VRAM versus 16GB on the RTX A4000. VRAM capacity is the primary constraint for running AI models without quantization — a 70B-parameter model in FP16 requires roughly 140GB, and even smaller models benefit from extra headroom. The 32GB advantage here means the RTX 6000 Ada Generation can run larger models natively and handle bigger batch sizes in production.

Inference Speed: Memory Bandwidth

Memory bandwidth determines how quickly data is fed to the compute units — it's the main bottleneck for autoregressive inference (token generation in LLMs). The RTX 6000 Ada Generation delivers 960 GB/s versus 448 GB/s on the RTX A4000, a 114% edge. For models already loaded into VRAM, token generation speed scales closely with this number: the RTX 6000 Ada Generation will produce tokens proportionally faster in bandwidth-bound workloads.

AI Training & Compute

For model training, scientific simulation, and rendering, FP32 throughput is the key metric. The RTX 6000 Ada Generation delivers 91.1 TFLOPS against 19.2 TFLOPS for the RTX A4000 — a 374% compute advantage. Training runs and heavy matrix operations will complete proportionally faster on the RTX 6000 Ada Generation.

Which should you buy: RTX 6000 Ada Generation or RTX A4000?

The RTX 6000 Ada Generation is the stronger choice for large-model workloads where VRAM is the bottleneck. The RTX A4000 is more economical, and sufficient if your models fit within its 16GB.

Frequently Asked Questions

Can the RTX 6000 Ada Generation or RTX A4000 run large language models?

Both can, but the RTX 6000 Ada Generation (48GB) handles larger models without quantization. The RTX A4000 (16GB) works well for smaller or heavily quantized models.

Which is faster for LLM inference, the RTX 6000 Ada Generation or the RTX A4000?

The RTX 6000 Ada Generation is faster for token generation — its 960 GB/s memory bandwidth vs 448 GB/s on the RTX A4000 is the primary driver of inference throughput in autoregressive models.

Which is better for AI training?

The RTX 6000 Ada Generation has the advantage at 91.1 TFLOPS vs 19.2 TFLOPS, making training runs proportionally faster than on the RTX A4000.

Technical Specifications Comparison

Architecture & Cores

SpecificationRTX 6000 Ada GenerationRTX A4000
ArchitectureAda LovelaceAmpere
CUDA Cores (CUDA Cores / CUDA Cores)18,1766,144

Memory

SpecificationRTX 6000 Ada GenerationRTX A4000
VRAM Capacity48 GB16 GB
Memory TypeGDDR6GDDR6
Memory Bus384-bit256-bit
Bandwidth960 GB/s448 GB/s

Connectivity & Power

SpecificationRTX 6000 Ada GenerationRTX A4000
InterfacePCIe 4.0 x16PCIe 4.0 x16
TDP300 W140 W
ReleasedOct 2022Apr 2021

Workstation

SpecificationRTX 6000 Ada GenerationRTX A4000
FP32 (TFLOPS)91.1 TFLOPS19.2 TFLOPS
ECCYesYes
NVLinkNoNo
Form factordual-slotsingle-slot