GPU Comparison

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

Workstation Verdict

The RTX A4500 has more VRAM (20GB vs 6GB), making it better suited for large models and memory-intensive workloads. Its memory bandwidth is 233% higher (640 GB/s vs 192 GB/s), translating directly to faster inference throughput.

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

VS
Price
Awaiting Data
VRAM
6 GB GDDR6
Mem. Speed
192 GB/s
FP32 Compute
3.7 TFLOPS
Key Specs Advantage

Comparable or lower specs

NVIDIA
RTX A4500
Price
£1,157
VRAM
20 GB GDDR6
Mem. Speed
640 GB/s
FP32 Compute
23.7 TFLOPS
Key Specs Advantage
+833% CUDA Cores (7,168 vs 768)
+541% FP32 (TFLOPS) (23.7 TFLOPS vs 3.7 TFLOPS)
+233% Bandwidth (640 GB/s vs 192 GB/s)

Arc Pro A40 vs RTX A4500: In-Depth Breakdown

VRAM: Arc Pro A40 vs RTX A4500

The RTX A4500 carries 20GB of VRAM versus 6GB on the Arc Pro A40. 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 14GB advantage here means the RTX A4500 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 A4500 delivers 640 GB/s versus 192 GB/s on the Arc Pro A40, a 233% edge. For models already loaded into VRAM, token generation speed scales closely with this number: the RTX A4500 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 A4500 delivers 23.7 TFLOPS against 3.7 TFLOPS for the Arc Pro A40 — a 541% compute advantage. Training runs and heavy matrix operations will complete proportionally faster on the RTX A4500.

Which should you buy: Arc Pro A40 or RTX A4500?

The RTX A4500 is the stronger choice for large-model workloads where VRAM is the bottleneck. The Arc Pro A40 is more economical, and sufficient if your models fit within its 6GB.

Frequently Asked Questions

Can the Arc Pro A40 or RTX A4500 run large language models?

Both can, but the RTX A4500 (20GB) handles larger models without quantization. The Arc Pro A40 (6GB) works well for smaller or heavily quantized models.

Which is faster for LLM inference, the Arc Pro A40 or the RTX A4500?

The RTX A4500 is faster for token generation — its 640 GB/s memory bandwidth vs 192 GB/s on the Arc Pro A40 is the primary driver of inference throughput in autoregressive models.

Which is better for AI training?

The RTX A4500 has the advantage at 23.7 TFLOPS vs 3.7 TFLOPS, making training runs proportionally faster than on the Arc Pro A40.

Technical Specifications Comparison

Architecture & Cores

SpecificationArc Pro A40RTX A4500
ArchitectureXe-HPGAmpere
CUDA Cores (Shading Units / CUDA Cores)7687,168

Memory

SpecificationArc Pro A40RTX A4500
VRAM Capacity6 GB20 GB
Memory TypeGDDR6GDDR6
Memory Bus96-bit320-bit
Bandwidth192 GB/s640 GB/s

Connectivity & Power

SpecificationArc Pro A40RTX A4500
InterfacePCIe 4.0 x8PCIe 4.0 x16
TDP50 W200 W
ReleasedJun 2023Oct 2021

Workstation

SpecificationArc Pro A40RTX A4500
FP32 (TFLOPS)3.7 TFLOPS23.7 TFLOPS
ECCYes
NVLinkNoYes
Form factorlow-profiledual-slot