FitMyLLM
AMD· GCN 1.0

AMD Radeon R9 255 OEM

Running LLMs on the Radeon R9 255 OEM — the long read: which models fit at which quantisation, and the settings worth changing. · Or what a budget buys

VRAM
2 GB
BUDGET
BANDWIDTH
74
GB/S
MODELS Q4
47/449
10%
7B Q4 SPEED
~9
USABLE
▸ MODEL COVERAGE @ Q410% OF ALL
▸ ESTIMATED SPEED· BY MODEL SIZE @ Q4

Average speeds at Q4 quantization. Actual performance varies by model architecture and context length.

3B
1.7GB NEEDED
7B
3.9GB NEEDED
14B
7.9GB NEEDED
32B
18.0GB NEEDED
70B
39.4GB NEEDED
▸ MEASURED RIG REPORTS

We rent the machine and time every model on it: decode, VRAM peak, concurrency, watts and cost per million tokens. Yours may already be one of them — and two are free to read in full.

SEE THE REPORTS
▸ SPECIFICATIONS
VRAM
2 GB
BANDWIDTH
74 GB/s
FP16 COMPUTE
1 TFLOPS
TDP
65W
MEMORY
GDDR5
ARCHITECTURE
GCN 1.0
STREAM PROCESSORS
512
COMPUTE UNITS
8
PCIE
Gen 3 x16
47
FAST MODELS · >30 TOK/S
Real-time chat speed
47
USABLE · >10 TOK/S
Comfortable for all tasks
47
TOTAL COMPATIBLE
Fit in VRAM at Q4
▸ DON’T WANT TO BUY?

Test Radeon R9 255 OEM (or anything bigger) without committing. Pay by the second, cancel anytime.

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▸ COMPATIBLE MODELS· 47
S
Falcon-H1R Tiny 90M0.09B
FALCON·256K CTX· CHAT· REASONING
731
TOK/S · 27% VRAM
S
SmolLM2 135M0.135B
SMOLLM·2K CTX· CHAT
487
TOK/S · 29% VRAM
S
nomic-embed-text-v1.5 100M0.14B
EMBEDDING·8K CTX· CHAT
470
TOK/S · 29% VRAM
S
GPT-2 124M0.14B
GPT2·1K CTX· CHAT
470
TOK/S · 29% VRAM
S
SmolVLM 256M0.256B
SMOLLM·8K CTX· CHAT· VISION
257
TOK/S · 32% VRAM
S
Gemma 3 270M0.27B
GEMMA·32K CTX· CHAT
244
TOK/S · 33% VRAM
S
Snowflake Arctic Embed M v2.00.305B
EMBEDDING·8K CTX· EMBEDDING· MULTILINGUAL
216
TOK/S · 34% VRAM
S
bge-large-en-v1.5 335M0.335B
EMBEDDING·1K CTX· CHAT
196
TOK/S · 35% VRAM
S
mxbai-embed-large-v10.335B
EMBEDDING·1K CTX· EMBEDDING
196
TOK/S · 35% VRAM
S
Snowflake Arctic Embed L0.335B
EMBEDDING·1K CTX· EMBEDDING
196
TOK/S · 35% VRAM
S
LFM2 350M0.35B
LFM·125K CTX· CHAT· TOOL_USE
188
TOK/S · 35% VRAM
S
SmolLM2 360M0.36B
SMOLLM·8K CTX· CHAT
183
TOK/S · 35% VRAM
S
GPT-2 Medium 345M0.38B
GPT2·1K CTX· CHAT
173
TOK/S · 36% VRAM
S
Qwen 2.5 0.5B0.5B
QWEN·32K CTX· CHAT
132
TOK/S · 40% VRAM
S
SmolVLM 500M0.5B
SMOLLM·8K CTX· CHAT· VISION
132
TOK/S · 40% VRAM
S
Falcon-H1 0.5B0.52B
FALCON·128K CTX· CHAT
126
TOK/S · 40% VRAM
S
BGE-M30.568B
EMBEDDING·8K CTX· EMBEDDING
116
TOK/S · 42% VRAM
S
Snowflake Arctic Embed L v2.00.568B
EMBEDDING·8K CTX· EMBEDDING· MULTILINGUAL
116
TOK/S · 42% VRAM
S
Qwen3-Embedding 0.6B0.6B
EMBEDDING·32K CTX· EMBEDDING· MULTILINGUAL
110
TOK/S · 43% VRAM
S
Falcon-H1R Tiny 0.6B0.6B
FALCON·32K CTX· CHAT· REASONING
110
TOK/S · 43% VRAM
S
Falcon Perception 0.6B0.6B
FALCON·4K CTX· VISION
110
TOK/S · 43% VRAM
S
Qwen 1.5 0.5B0.62B
QWEN·32K CTX· CHAT
106
TOK/S · 43% VRAM
S
LFM2 700M0.74B
LFM·125K CTX· CHAT· TOOL_USE
89
TOK/S · 47% VRAM
S
Qwen3 0.6B0.75B
QWEN·32K CTX· CHAT· REASONING
88
TOK/S · 47% VRAM
S
GPT-2 Large 774M0.81B
GPT2·1K CTX· CHAT
81
TOK/S · 49% VRAM
S
Qwen 3.5 0.8B0.87B
QWEN·256K CTX· CHAT· CODING· MULTILINGUAL
76
TOK/S · 51% VRAM
S
InternVL3 1B0.94B
OTHER·32K CTX· CHAT· VISION
70
TOK/S · 53% VRAM
S
MiniCPM5 1B1.08B
MINICPM·128K CTX· CHAT· REASONING· MULTILINGUAL
61
TOK/S · 57% VRAM
S
TinyLlama 1.1B1.1B
LLAMA·2K CTX· CHAT
60
TOK/S · 58% VRAM
A
LFM2.5-1.2B-Thinking1.2B
LFM·122K CTX· CHAT· REASONING· TOOL_USE
55
TOK/S · 61% VRAM
A
Llama-3.2-1B1.2B
LLAMA·4K CTX· CHAT
55
TOK/S · 61% VRAM
A
LFM2 1.2B1.2B
LFM·125K CTX· CHAT· TOOL_USE· MULTILINGUAL
55
TOK/S · 61% VRAM
A
Zamba2 1.2B1.2B
OTHER·4K CTX· CHAT
55
TOK/S · 61% VRAM
A
EXAONE-4.0-1.2B1.3B
EXAONE·64K CTX· CHAT
51
TOK/S · 64% VRAM
A
OPT 1.3B1.3B
OPT·2K CTX· CHAT
51
TOK/S · 64% VRAM
A
MiniCPM-V 4.61.3B
OTHER·256K CTX· CHAT· VISION
51
TOK/S · 64% VRAM
A
DeepSeek Coder 1.3B1.35B
DEEPSEEK·16K CTX· CODING
49
TOK/S · 66% VRAM
A
Phi-1 1.3B1.42B
PHI·2K CTX· CODING
46
TOK/S · 68% VRAM
A
Phi-1.5 1.3B1.42B
PHI·2K CTX· CHAT· CODING
46
TOK/S · 68% VRAM
A
Qwen2.5-Coder-1.5B1.5B
QWEN·32K CTX· CHAT· TOOL_USE· CODING
44
TOK/S · 70% VRAM
▸ NEXT STEP

Get personalized recommendations.

See ranked models with benchmark scores, run commands, and precise speed estimates for your Radeon R9 255 OEM.

WHAT THIS CARD IS WORTH

Radeon R9 255 OEM holds 47 of the models in our catalogue and is, in practice, a Q4_K_M card — the largest it takes is Moondream2 1.9B at Q4_K_M.

TOKENS/SEC PER $100
8B at Q4_K_M, so cards compare like for like
VRAM PER $100
what memory costs on this card
THE BIGGEST IT TAKES
Moondream2 1.9B1.9B · Q4_K_M1.7 GB22 tok/sEST
Falcon3-1B1.67B · Q5_K_M1.8 GB22 tok/sEST
LFM2-VL 1.6B1.6B · Q5_K_M1.7 GB23 tok/sEST
Falcon-H1 1.5B1.55B · Q6_K1.7 GB21 tok/sEST
Qwen2.5-Coder-1.5B1.5B · Q6_K1.6 GB21 tok/sEST
Qwen2 Math 1.5B1.5B · Q6_K1.6 GB21 tok/sEST
Qwen 2.5 1.5B1.5B · Q6_K1.6 GB21 tok/sEST
Stella en 1.5B v51.5B · Q6_K1.6 GB21 tok/sEST
AGAINST CARDS OF SIMILAR MEMORY
M2 (8GB)5 GB$5992.8 tok/s per $100
M3 (8GB)5 GB$5992.8 tok/s per $100
M1 (8GB)5 GB$4992.2 tok/s per $100
RTX 2060 6GB6 GB$15026.7 tok/s per $100
Radeon R9 255 OEM2 GB

Neighbours in memory rather than in price: memory decides whether a card can do the job at all, so two cards of the same size at different prices is the comparison you are making. Ordered by memory, then bandwidth — not by the value column, which is worked out from bandwidth and price alone and therefore rewards a cheap card whatever its software stack does to that bandwidth in practice. Read it as one input, not as a ranking.

▸ DEVICE UNDER TEST

AMD Radeon R9 255 OEM — 2 GB VRAM.

RADEON R9 255 OEM SPEC
BRAND
AMD
VRAM
2 GB GDDR5
BANDWIDTH
74 GB/s
FP16 COMPUTE
1 TFLOPS
FP32 COMPUTE
1 TFLOPS
STREAM PROCESSORS
512
TDP
65 W
ARCHITECTURE
GCN 1.0
▸ AI CAPABILITY
47/ 449 models @ Q4

With 2 GB VRAM and 74 GB/s bandwidth, this GPU handles models up to 1.61B parameters.

Speed ≈ bandwidth / model_size × efficiency. A 7B model at Q4 runs at ~8 tok/s.

§ 01TOP MODELS FOR RADEON R9 255 OEM
47 FIT · SHOWING 20
MODELSIZEVRAM Q4TOK/SAVG
GPT-2 XL 1.5B1.61B1.5 GB415.1
stablelm-2-1_6b1.6B1.5 GB419.5
Falcon-H1 1.5B1.55B1.4 GB4243.8
Qwen2.5-Coder-1.5B1.5B1.4 GB4419.6
Qwen2 Math 1.5B1.5B1.4 GB4419.6
Qwen 2.5 1.5B1.5B1.4 GB4430.2
Yi Coder 1.5B1.5B1.4 GB4414.6
Stella en 1.5B v51.5B1.4 GB44
Phi-1 1.3B1.42B1.4 GB467.2
Phi-1.5 1.3B1.42B1.4 GB467.2
DeepSeek Coder 1.3B1.35B1.3 GB4916.8
EXAONE-4.0-1.2B1.3B1.3 GB5118.9
OPT 1.3B1.3B1.3 GB515.3
MiniCPM-V 4.61.3B1.3 GB5121.5
LFM2.5-1.2B-Thinking1.2B1.2 GB5519.6
Llama-3.2-1B1.2B1.2 GB5510.1
LFM2 1.2B1.2B1.2 GB5515.6
Zamba2 1.2B1.2B1.2 GB5541.5
TinyLlama 1.1B1.1B1.2 GB6013.6
MiniCPM5 1B1.08B1.1 GB6126.5