RTX 3090 24GBコスパ重視24 GB VRAM (+4)936 GB/s (+576)
B
Raises estimated decode speed by about 134%.82.9 tok/sデコード
Raises estimated decode speed by about 134%.
〜$1,499 MSRP
Can Qwen 2.5 Coder 14B run on RTX 4000 Ada 20GB?
YES — Runs Great
B68Good
Estimated from fit model
Qwen 2.5 Coder 14B needs ~14.7 GB VRAM. RTX 4000 Ada 20GB has 20.0 GB. With Q4_K_M quantization, expect ~36 tok/s.
Runtime: OllamaCapacity: RoomyBandwidth: LowStack: BasicBottleneck: Balanced
Operating mode
Choose the run profile you care about
Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.
Current mode
Balanced
Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.
Select quantization to explore
Q4_K_M (Medium quality) — 14.7 GB, 35.5 tok/s, Runs well
14.7 GB required20.0 GB available
74% VRAM used
Fit status
Runs well
Decode
35.5 tok/s
TTFT
5452 ms
Safe context
45K
Memory
14.7 GB / 20.0 GB
Memory breakdown
Weights8.5 GB
KV Cache2.9 GB
Runtime1.2 GB
Headroom2.0 GB
See how fast it feels
See how fast it feelsQwen 2.5 Coder 14B on RTX 4000 Ada 20GB
1st promptCold start — includes initialization
>Write a Python function to sort a list
Here's a Python function that sorts a list using quicksort:
def quicksort(arr):
if len(arr) <= 1:
return arr
pivot = arr[len(arr) // 2]
left = [x for x in arr if x < pivot]
middle = [x for x in arr if x == pivot]
right = [x for x in arr if x > pivot]
return quicksort(left) + middle + quicksort(right)
# Example usage
numbers = [3, 6, 8, 10, 1, 2, 1]
print(quicksort(numbers)) # [1, 1, 2, 3, 6, 8, 10]
The algorithm picks a pivot, partitions the list into smaller, equal, and larger elements, then recursively sorts each partition and concatenates the results.
2nd promptWarm — model ready, no init overhead
>Now add type hints and a docstring
def quicksort(arr: list[int]) -> list[int]:
"""Sort a list using the quicksort algorithm.
Args:
arr: List of integers to sort.
Returns:
A new sorted list.
"""
if len(arr) <= 1:
return arr
pivot = arr[len(arr) // 2]
left = [x for x in arr if x < pivot]
middle = [x for x in arr if x == pivot]
right = [x for x in arr if x > pivot]
return quicksort(left) + middle + quicksort(right)
Added type hints for the input and return type, plus a Google-style docstring.
Estimated: 35.5 tok/s decode · 5.5s TTFT (warm) · 89 tok/s prefill
What limits this setup
This setup is broadly balanced for this model.
No major red flags
This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.
Best improvement path
Performance by workload
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | B | Runs well | 35.5 tok/s | 2974 ms | 45K |
| Coding | B | Runs well | 35.5 tok/s | 5452 ms | 45K |
| Agentic Coding | B | Tight fit | 35.5 tok/s | 7930 ms | 45K |
| Reasoning | B | Runs well | 35.5 tok/s | 6443 ms | 45K |
| RAG | B | Tight fit | 35.5 tok/s | 9912 ms | 45K |
Quantization options
How Qwen 2.5 Coder 14B (14B params) fits at each quantization level on RTX 4000 Ada 20GB (20.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 5.5 GB | Low | B61 |
Q3_K_S | 3 | 6.9 GB | Low | B63 |
NVFP4 | 4 | 7.8 GB | Medium | B63 |
Q4_K_M | 4 | 8.5 GB | Medium | B64 |
Q5_K_M | 5 | 10.1 GB | High | B65 |
Q6_K | 6 | 11.5 GB | High | B65 |
Q8_0Best for your GPU | 8 | 15.0 GB | Very High | B64 |
F16 | 16 | 28.7 GB | Maximum | F0 |
Get started
Copy-paste commands to run Qwen 2.5 Coder 14B on your machine.
Run
ollama run qwen2.5-coder:14bアップグレードオプション
Qwen 2.5 Coder 14Bを快適に動かすハードウェア
RTX 3090 24GBコスパ重視RTX 4090 24GBコスパ最良24 GB VRAM (+4)1008 GB/s (+648)
B
Raises estimated decode speed by about 173%.96.9 tok/sデコード
Raises estimated decode speed by about 173%.
〜$1,599 MSRP
RTX PRO 4000 Blackwell 24GBNVIDIAアップグレード24 GB VRAM (+4)672 GB/s (+312)
B
Raises estimated decode speed by about 101%.71.4 tok/sデコード
Raises estimated decode speed by about 101%.
〜$1,599 MSRP
Frequently asked questions
Can RTX 4000 Ada 20GB run Qwen 2.5 Coder 14B?
Yes, RTX 4000 Ada 20GB can run Qwen 2.5 Coder 14B with a B grade (Runs well). Expected decode speed: 35.5 tok/s.
How much VRAM does Qwen 2.5 Coder 14B need?
Qwen 2.5 Coder 14B (14B parameters) requires approximately 14.7 GB of memory with Q4_K_M quantization.
What is the best quantization for Qwen 2.5 Coder 14B?
The recommended quantization for Qwen 2.5 Coder 14B is Q4_K_M, which balances quality and memory efficiency.
What speed will Qwen 2.5 Coder 14B run at on RTX 4000 Ada 20GB?
On RTX 4000 Ada 20GB, Qwen 2.5 Coder 14B achieves approximately 35.5 tokens per second decode speed with a time-to-first-token of 5452ms using Q4_K_M quantization.
Can RTX 4000 Ada 20GB run Qwen 2.5 Coder 14B for coding?
For coding workloads, Qwen 2.5 Coder 14B on RTX 4000 Ada 20GB receives a B grade with 35.5 tok/s and 45K context.
What context window can Qwen 2.5 Coder 14B use on RTX 4000 Ada 20GB?
On RTX 4000 Ada 20GB, Qwen 2.5 Coder 14B can safely use up to 45K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.
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