RX 7900 XT 20GBコスパ重視
20 GB VRAM (+4)800 GB/s (+288)
C
Raises estimated decode speed by about 65%.52.5 tok/sデコード
Raises estimated decode speed by about 65%.
Adds memory headroom for longer context windows and future model growth.
〜$899 MSRP
Can starcoder2 15b instruct v0.1 run on RX 6900 XT 16GB?
YES — Tight Fit
C50Usable
Estimated from fit model
starcoder2 15b instruct v0.1 needs ~13.4 GB VRAM. RX 6900 XT 16GB has 16.0 GB. With Q4_K_M quantization, expect ~32 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) — 13.4 GB, 31.9 tok/s, Tight fit
13.4 GB required16.0 GB available
84% VRAM used
Fit status
Tight fit
Decode
31.9 tok/s
TTFT
6070 ms
Safe context
40K
Memory
13.4 GB / 16.0 GB
Memory breakdown
Weights9.2 GB
KV Cache1.8 GB
Runtime0.9 GB
Headroom1.6 GB
See how fast it feels
See how fast it feelsstarcoder2 15b instruct v0.1 on RX 6900 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: 31.9 tok/s decode · 6.1s TTFT (warm) · 80 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 | C | Runs well | 31.9 tok/s | 3311 ms | 40K |
| Coding | C | Tight fit | 31.9 tok/s | 6070 ms | 40K |
| Agentic Coding | C | Tight fit | 31.9 tok/s | 8829 ms | 40K |
| Reasoning | C | Tight fit | 31.9 tok/s | 7174 ms | 40K |
| RAG | C | Tight fit | 31.9 tok/s | 11036 ms | 40K |
Quantization options
How starcoder2 15b instruct v0.1 (15B params) fits at each quantization level on RX 6900 XT 16GB (16.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 5.9 GB | Low | C49 |
Q3_K_S | 3 | 7.4 GB | Low | C51 |
NVFP4 | 4 | 8.4 GB | Medium | C51 |
Q4_K_M | 4 | 9.2 GB | Medium | C51 |
Q5_K_M | 5 | 10.8 GB | High | C50 |
Q6_KBest for your GPU | 6 | 12.3 GB | High | C50 |
Q8_0 | 8 | 16.1 GB | Very High | F0 |
F16 | 16 | 30.7 GB | Maximum | F0 |
Get started
Copy-paste commands to run starcoder2 15b instruct v0.1 on your machine.
Run
lms load hf-lmstudio-community--starcoder2-15b-instruct-v0-1-gguf && lms server startアップグレードオプション
starcoder2 15b instruct v0.1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)
C
Raises estimated decode speed by about 137%.75.5 tok/sデコード
Raises estimated decode speed by about 137%.
Adds memory headroom for longer context windows and future model growth.
〜$999 MSRP
AMD Instinct MI100 32GBAMDアップグレード
32 GB VRAM (+16)1228 GB/s (+716)
C
Raises estimated decode speed by about 173%.87.2 tok/sデコード
Raises estimated decode speed by about 173%.
Adds memory headroom for longer context windows and future model growth.
〜$11,500 MSRP
Frequently asked questions
Can RX 6900 XT 16GB run starcoder2 15b instruct v0.1?
Yes, RX 6900 XT 16GB can run starcoder2 15b instruct v0.1 with a C grade (Tight fit). Expected decode speed: 31.9 tok/s.
How much VRAM does starcoder2 15b instruct v0.1 need?
starcoder2 15b instruct v0.1 (15B parameters) requires approximately 13.4 GB of memory with Q4_K_M quantization.
What is the best quantization for starcoder2 15b instruct v0.1?
The recommended quantization for starcoder2 15b instruct v0.1 is Q4_K_M, which balances quality and memory efficiency.
What speed will starcoder2 15b instruct v0.1 run at on RX 6900 XT 16GB?
On RX 6900 XT 16GB, starcoder2 15b instruct v0.1 achieves approximately 31.9 tokens per second decode speed with a time-to-first-token of 6070ms using Q4_K_M quantization.
Can RX 6900 XT 16GB run starcoder2 15b instruct v0.1 for coding?
For coding workloads, starcoder2 15b instruct v0.1 on RX 6900 XT 16GB receives a C grade with 31.9 tok/s and 40K context.
What context window can starcoder2 15b instruct v0.1 use on RX 6900 XT 16GB?
On RX 6900 XT 16GB, starcoder2 15b instruct v0.1 can safely use up to 40K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.
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