RX 7900 XT 20GBコスパ重視
20 GB VRAM (+4)800 GB/s (+288)
B
Raises estimated decode speed by about 67%.60.7 tok/sデコード
Raises estimated decode speed by about 67%.
Adds memory headroom for longer context windows and future model growth.
〜$899 MSRP
Can Qwen 2.5 Coder 14B run on RX 6800 XT 16GB?
YES — Tight Fit
B65Good
Estimated from fit model
Qwen 2.5 Coder 14B needs ~14.0 GB VRAM. RX 6800 XT 16GB has 16.0 GB. With Q4_K_M quantization, expect ~36 tok/s.
Runtime: llama.cppCapacity: TightBandwidth: MediumStack: StandardBottleneck: 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) — 14.0 GB, 36.3 tok/s, Tight fit
14.0 GB required16.0 GB available
88% VRAM used
Fit status
Tight fit
Decode
36.3 tok/s
TTFT
5339 ms
Safe context
27K
Memory
14.0 GB / 16.0 GB
Memory breakdown
Weights8.5 GB
KV Cache2.9 GB
Runtime0.9 GB
Headroom1.6 GB
See how fast it feels
See how fast it feelsQwen 2.5 Coder 14B on RX 6800 XT 16GB
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: 36.3 tok/s decode · 5.3s TTFT (warm) · 91 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 | 36.3 tok/s | 2912 ms | 27K |
| Coding | B | Tight fit | 36.3 tok/s | 5339 ms | 27K |
| Agentic Coding | C | Runs with offload (needs ~0.5 GB host RAM) | 24.2 tok/s | 11618 ms | 27K |
| Reasoning | B | Tight fit | 36.3 tok/s | 6310 ms | 27K |
| RAG | C | Runs with offload (needs ~0.5 GB host RAM) | 24.2 tok/s | 14523 ms | 27K |
Quantization options
How Qwen 2.5 Coder 14B (14B params) fits at each quantization level on RX 6800 XT 16GB (16.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 5.5 GB | Low | B64 |
Q3_K_S | 3 | 6.9 GB | Low | B65 |
NVFP4 | 4 | 7.8 GB | Medium | B66 |
Q4_K_M | 4 | 8.5 GB | Medium | B66 |
Q5_K_M | 5 | 10.1 GB | High | B65 |
Q6_KBest for your GPU | 6 | 11.5 GB | High | B65 |
Q8_0 | 8 | 15.0 GB | Very High | F0 |
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
RX 7900 XTX 24GBコスパ最良
24 GB VRAM (+8)960 GB/s (+448)
B
Raises estimated decode speed by about 141%.87.4 tok/sデコード
Raises estimated decode speed by about 141%.
Adds memory headroom for longer context windows and future model growth.
〜$999 MSRP
AMD Instinct MI60 32GBAMDアップグレード
32 GB VRAM (+16)1024 GB/s (+512)
B
Raises estimated decode speed by about 75%.63.5 tok/sデコード
Raises estimated decode speed by about 75%.
Adds memory headroom for longer context windows and future model growth.
〜$8,999 MSRP
Frequently asked questions
Can RX 6800 XT 16GB run Qwen 2.5 Coder 14B?
Yes, RX 6800 XT 16GB can run Qwen 2.5 Coder 14B with a B grade (Tight fit). Expected decode speed: 36.3 tok/s.
How much VRAM does Qwen 2.5 Coder 14B need?
Qwen 2.5 Coder 14B (14B parameters) requires approximately 14.0 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 RX 6800 XT 16GB?
On RX 6800 XT 16GB, Qwen 2.5 Coder 14B achieves approximately 36.3 tokens per second decode speed with a time-to-first-token of 5339ms using Q4_K_M quantization.
Can RX 6800 XT 16GB run Qwen 2.5 Coder 14B for coding?
For coding workloads, Qwen 2.5 Coder 14B on RX 6800 XT 16GB receives a B grade with 36.3 tok/s and 27K context.
What context window can Qwen 2.5 Coder 14B use on RX 6800 XT 16GB?
On RX 6800 XT 16GB, Qwen 2.5 Coder 14B can safely use up to 27K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.
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<iframe src="https://willitrunai.com/embed/qwen-2.5-coder-14b-on-rx-6800-xt-16gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
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