GPU Comparison

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

Workstation Verdict

The RTX 4000 Ada Generation has more VRAM (20GB vs 12GB), making it better suited for large models and memory-intensive workloads. Its memory bandwidth is 25% higher (360 GB/s vs 288 GB/s), translating directly to faster inference throughput.

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

VS
Price
Awaiting Data
VRAM
20 GB GDDR6
Mem. Speed
360 GB/s
FP32 Compute
26.7 TFLOPS
Key Specs Advantage
+234% FP32 (TFLOPS) (26.7 TFLOPS vs 8 TFLOPS)
+85% CUDA Cores (6,144 vs 3,328)
+25% Bandwidth (360 GB/s vs 288 GB/s)
NVIDIA
RTX A2000
Price
£542
VRAM
12 GB GDDR6
Mem. Speed
288 GB/s
FP32 Compute
8 TFLOPS
Key Specs Advantage
+20% Memory Bus (192-bit vs 160-bit)

RTX 4000 Ada Generation vs RTX A2000: In-Depth Breakdown

VRAM: RTX 4000 Ada Generation vs RTX A2000

The RTX 4000 Ada Generation carries 20GB of VRAM versus 12GB on the RTX A2000. 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 8GB advantage here means the RTX 4000 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 4000 Ada Generation delivers 360 GB/s versus 288 GB/s on the RTX A2000, a 25% edge. For models already loaded into VRAM, token generation speed scales closely with this number: the RTX 4000 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 4000 Ada Generation delivers 26.7 TFLOPS against 8 TFLOPS for the RTX A2000 — a 234% compute advantage. Training runs and heavy matrix operations will complete proportionally faster on the RTX 4000 Ada Generation.

Which should you buy: RTX 4000 Ada Generation or RTX A2000?

The RTX 4000 Ada Generation is the stronger choice for large-model workloads where VRAM is the bottleneck. The RTX A2000 is more economical, and sufficient if your models fit within its 12GB.

Frequently Asked Questions

Can the RTX 4000 Ada Generation or RTX A2000 run large language models?

Both can, but the RTX 4000 Ada Generation (20GB) handles larger models without quantization. The RTX A2000 (12GB) works well for smaller or heavily quantized models.

Which is faster for LLM inference, the RTX 4000 Ada Generation or the RTX A2000?

The RTX 4000 Ada Generation is faster for token generation — its 360 GB/s memory bandwidth vs 288 GB/s on the RTX A2000 is the primary driver of inference throughput in autoregressive models.

Which is better for AI training?

The RTX 4000 Ada Generation has the advantage at 26.7 TFLOPS vs 8 TFLOPS, making training runs proportionally faster than on the RTX A2000.

Technical Specifications Comparison

Architecture & Cores

SpecificationRTX 4000 Ada GenerationRTX A2000
ArchitectureAda LovelaceAmpere
CUDA Cores (CUDA Cores / CUDA Cores)6,1443,328

Memory

SpecificationRTX 4000 Ada GenerationRTX A2000
VRAM Capacity20 GB12 GB
Memory TypeGDDR6GDDR6
Memory Bus160-bit192-bit
Bandwidth360 GB/s288 GB/s

Connectivity & Power

SpecificationRTX 4000 Ada GenerationRTX A2000
InterfacePCIe 4.0 x16PCIe 4.0 x16
TDP130 W70 W
ReleasedJan 2023Aug 2021

Workstation

SpecificationRTX 4000 Ada GenerationRTX A2000
FP32 (TFLOPS)26.7 TFLOPS8 TFLOPS
ECCYesYes
NVLinkNoNo
Form factorsingle-slotlow-profile