AMD · RDNA 3 · 24 GB VRAM tier
Best AI Models for AMD Radeon RX 7900 XTX (24 GB)
Runs 27–31B and 35B MoE models well; 70B doesn't fit in 24 GB.
| # | Model | Speed | llmrun Score | Quant · VRAM |
|---|---|---|---|---|
| 1 | Qwen3.8 27BAlibabaHow to run → Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB | |
| 2 | Qwen3.6 27BAlibaba Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB | |
| 3 | Gemma 4 31B ITGoogle Q4_K_M · 21.7 GB · 28.2 t/s | 28.2 tok/s | Q4_K_M · 21.7 GB | |
| 4 | Gemma 4 26B A4B ITGoogle Q4_K_M · 16.5 GB · 92.9 t/s | 92.9 tok/s | Q4_K_M · 16.5 GB | |
| 5 | Q4_K_M · 19.3 GB · 77.5 t/s | 77.5 tok/s | Q4_K_M · 19.3 GB |
| # | Model | Speed | Coding Score | Quant · VRAM |
|---|---|---|---|---|
| 1 | Qwen3.8 27BAlibabaHow to run → Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB | |
| 2 | Gemma 4 31B ITGoogle Q4_K_M · 21.7 GB · 28.2 t/s | 28.2 tok/s | Q4_K_M · 21.7 GB | |
| 3 | Qwen3.6 35B A3BAlibaba Q4_K_M · 22.0 GB · 76.7 t/s | 76.7 tok/s | Q4_K_M · 22.0 GB | |
| 4 | Gemma 4 26B A4B ITGoogle Q4_K_M · 16.5 GB · 92.9 t/s | 92.9 tok/s | Q4_K_M · 16.5 GB | |
| 5 | Q4_K_M · 19.3 GB · 77.5 t/s | 77.5 tok/s | Q4_K_M · 19.3 GB |
| # | Model | Speed | Reasoning Score | Quant · VRAM |
|---|---|---|---|---|
| 1 | Qwen3.8 27BAlibabaHow to run → Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB | |
| 2 | Gemma 4 31B ITGoogle Q4_K_M · 21.7 GB · 28.2 t/s | 28.2 tok/s | Q4_K_M · 21.7 GB | |
| 3 | Qwen3.5 27BAlibaba Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB | |
| 4 | Gemma 4 26B A4B ITGoogle Q4_K_M · 16.5 GB · 92.9 t/s | 92.9 tok/s | Q4_K_M · 16.5 GB | |
| 5 | Q4_K_M · 19.3 GB · 77.5 t/s | 77.5 tok/s | Q4_K_M · 19.3 GB |
| # | Model | Speed | Math Score | Quant · VRAM |
|---|---|---|---|---|
| 1 | Qwen3.8 27BAlibabaHow to run → Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB | |
| 2 | Qwen3.6 27BAlibaba Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB | |
| 3 | Qwen3.6 35B A3BAlibaba Q4_K_M · 22.0 GB · 76.7 t/s | 76.7 tok/s | Q4_K_M · 22.0 GB | |
| 4 | Gemma 4 31B ITGoogle Q4_K_M · 21.7 GB · 28.2 t/s | 28.2 tok/s | overall | Q4_K_M · 21.7 GB |
| 5 | Q4_K_M · 19.3 GB · 77.5 t/s | 77.5 tok/s | Q4_K_M · 19.3 GB |
| # | Model | Speed | Long context Score | Quant · VRAM |
|---|---|---|---|---|
| 1 | Qwen3.8 27BAlibabaHow to run → Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB | |
| 2 | Qwen3.6 27BAlibaba Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB | |
| 3 | Gemma 4 26B A4B ITGoogle Q4_K_M · 16.5 GB · 92.9 t/s | 92.9 tok/s | Q4_K_M · 16.5 GB | |
| 4 | GPT OSS 20BOpenAI Q4_K_M · 13.1 GB · 108 t/s | 108 tok/s | Q4_K_M · 13.1 GB | |
| 5 | JEV 27B VLautotrust Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB |
| # | Model | Speed ↓ | llmrun Score | Quant · VRAM |
|---|---|---|---|---|
| 1 | Qwen3.5 4BAlibabaHow to run → Q4_K_M · 3.4 GB · 177 t/s | 177 tok/s | Q4_K_M · 3.4 GB | |
| 2 | GPT OSS 20BOpenAI Q4_K_M · 13.1 GB · 108 t/s | 108 tok/s | Q4_K_M · 13.1 GB | |
| 3 | Gemma 4 26B A4B ITGoogle Q4_K_M · 16.5 GB · 92.9 t/s | 92.9 tok/s | Q4_K_M · 16.5 GB | |
| 4 | Qwen3.5 9BAlibaba Q4_K_M · 6.6 GB · 90.6 t/s | 90.6 tok/s | Q4_K_M · 6.6 GB | |
| 5 | Q4_K_M · 19.3 GB · 77.5 t/s | 77.5 tok/s | Q4_K_M · 19.3 GB |
| # | Model | Speed | Vision Score | Quant · VRAM |
|---|---|---|---|---|
| 1 | Qwen3.8 27BAlibabaHow to run → Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB | |
| 2 | Qwen3.6 27BAlibaba Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB | |
| 3 | Gemma 4 31B ITGoogle Q4_K_M · 21.7 GB · 28.2 t/s | 28.2 tok/s | Q4_K_M · 21.7 GB | |
| 4 | Gemma 4 26B A4B ITGoogle Q4_K_M · 16.5 GB · 92.9 t/s | 92.9 tok/s | Q4_K_M · 16.5 GB | |
| 5 | JEV 27B VLautotrust Q4_K_M · 17.9 GB · 33.1 t/s | 33.1 tok/s | Q4_K_M · 17.9 GB |
The RX 7900 XTX is an entry card in the 24 GB class: it runs 27–31B and 35B MoE models well. It is among the most efficient per watt in its tier, and the best speed per dollar of the cards compared at ≈$1,130. RDNA 3 generation, released 2022.
RX 7900 XTX strengths and weaknesses
Strengths
- Runs 27–31B models: Qwen3.8 27B at 33.1 tok/s in 17.9 GB, 6.1 GB left for context
- Only new 24 GB card here: The other 24 GB cards sell used; this one ≈$1,130 new
Weaknesses
- 70B models don't fit: Llama 3.3 70B Instruct needs 51.3 GB at Q4 vs 24 GB here
- Slower on MoE models: Qwen3.6 35B A3B at 76.7 tok/s, slower than Qwen3.5 9B at 90.6
- Slow prompt reading: A 4K-token prompt on Qwen3.8 27B waits 8.4 s for the first token
- ROCm, not CUDA: No FP8 weights; MXFP4 only through llama.cpp, not vLLM
Speed per dollar and per watt
On Qwen3.5 9B (9B params) at Q4_K_M. New prices are compared with new, used with used. The last two columns are the speed you get per $100 of price and per 100 W of board power; higher is better.
| Card | New price | tok/s | tok/s per $100 | tok/s per 100 W |
|---|---|---|---|---|
RX 7900 XTX24 GB | about $1,130 | 90.6 | 8.0 | 25.5 |
RTX 5070 Ti16 GBBest new value | about $1,170 | 91.6 | 7.8 | 30.5 |
RX 907016 GB | about $800 | 60.4 | 7.6 | 27.5 |
RX 9070 XT16 GB | about $815 | 60.4 | 7.4 | 19.9 |
RTX 508016 GB | about $1,690 | 98.1 | 5.8 | 27.3 |
RX 9060 XT 16GB16 GB | about $590 | 30.2 | 5.1 | 18.9 |
RTX 509032 GB | about $5,376 | 183 | 3.4 | 31.8 |
| Card | Used price | tok/s | tok/s per $100 | tok/s per 100 W |
|---|---|---|---|---|
RX 907016 GBBest used value | about $650 | 60.4 | 9.3 | 27.5 |
RX 7900 XTX24 GB | about $1,000 | 90.6 | 9.1 | 25.5 |
RTX 5070 Ti16 GB | about $1,100 | 91.6 | 8.3 | 30.5 |
RTX 3090 Ti24 GB | about $1,600 | 103 | 6.4 | 22.9 |
RTX 309024 GB | about $1,500 | 95.7 | 6.4 | 27.3 |
RX 9060 XT 16GB16 GB | about $480 | 30.2 | 6.3 | 18.9 |
RTX 508016 GB | about $1,640 | 98.1 | 6.0 | 27.3 |
RTX 509032 GB | about $6,400 | 183 | 2.9 | 31.8 |
Cost per token: the RX 7900 XTX against 16–32 GB cards
On Qwen3.5 9B (9B params, Q4_K_M, 4K context). Speed, cost per token and power per token depend on the model.
- Card, new price
- $0.79
- Power
- $0.16
Renting costs as much as buying after ≈400 hours (≈0.3 years at 4 h a day).
Each dot is a card; hover or tap it for its numbers, click to open it. Cards without a price for the chosen basis are left out. How we calculate cost per token
Cards people weigh against the RX 7900 XTX, each with the one reason it is worth a look. Speeds on Qwen3.5 9B.
Output speed depends on memory bandwidth (960 GB/s). Grey rows need more than 24 GB.
- 9BQwen3.5 9B · Q4_K_M · 6.6 GB90.6tok/s
- 14BQwen3 14B · Q4_K_M · 11.9 GB60.6tok/s
- 27–31BQwen3.8 27B · Q4_K_M · 17.9 GB33.1tok/s
- 35B MoEQwen3.6 35B A3B · Q4_K_M · 22.0 GB76.7tok/s
- 70BLlama 3.3 70B Instruct · not at 4-bitneeds 51.3 GB
- 120B MoEGPT OSS 120B · not at 4-bitneeds 70.8 GB
Estimated speeds: Q4_K_M, 4K context, one user. How we estimate
All 1141 models on the RX 7900 XTX
Featured onlyBest quant that fits, ordered by llmrun Score. Fit grades how well it runs here, S best. How ranking works
| Model | Quant | VRAM | Speed | Context | Score | Fit |
|---|---|---|---|---|---|---|
LFM2.5 8B A1B Opus DistilChatReasoning | Q4_K_M | 5.6 GB | 149.4 t/s | 128K | S97, Runs great | |
Phi 4 ReasoningChatMathCodeReasoning | Q4_K_M | 12.5 GB | 60.5 t/s | 33K | A84, Runs well | |
Tiny Qwen3MoeForCausalLMChatFunctions | Q4_K_M | 0.6 GB | 1920.0 t/s | 41K | S100, Runs great | |
Ministral 3 14B Reasoning 2512ReasoningFunctions | Q4_K_M | 12.0 GB | 63.4 t/s | 262K | A84, Runs well | |
| Q4_K_M | 7.6 GB | 104.3 t/s | 41K | S92, Runs great | ||
| BF16 | 1.6 GB | 976.3 t/s | — | S100, Runs great | ||
Quark 135MChat | Q4_K_M | 0.4 GB | 1339.5 t/s | 2K | S100, Runs great | |
Qwen3.5 9B Claude 4.6 Opus Reasoning DistilledChatReasoning | Q4_K_M | 6.6 GB | 90.6 t/s | 262K | S90, Runs great | |
MobileLLM R1 360MChatReasoning | Q4_K_M | 1.3 GB | 2400.0 t/s | — | S100, Runs great | |
CyberPal2.0 20BChatReasoning | Q4_K_M | 13.1 GB | 107.6 t/s | 131K | S92, Runs great | |
Agnes 3.0 FlashVisionReasoningFunctions | IQ4_XS | 22.1 GB | 31.0 t/s | 262K | B54, Decent | |
| Q4_K_M | 5.4 GB | 109.1 t/s | 4K | S93, Runs great | ||
| Q4_K_M | 5.3 GB | 114.5 t/s | 131K | S94, Runs great | ||
Qwen3 4BChatFunctions | Q4_K_M | 4.2 GB | 198.6 t/s | 41K | S100, Runs great | |
Qwen3 30B A3BChatFunctions | Q4_K_M | 19.4 GB | 75.9 t/s | 41K | S86, Runs great |
Specs
- Architecture
- RDNA 3
- VRAM
- 24 GB GDDR6
- Memory bandwidth
- 960.0 GB/s
- FP16 (dense)
- 122.80 TFLOPS
- Stream processors
- 6,144
- TDP
- 355 W
- Released
- 2022-12-13
- MSRP
- $999
RX 7900 XTX FAQ
Is the RX 7900 XTX still worth it in 2026?
At ≈$1,130 you get 8.0 tok/s per $100 on Qwen3.5 9B, which ranks 1st of the 7 cards compared here; it is also the 4th fastest out of 5 cards with 24 GB. It runs 27–31B and 35B MoE models well; 70B doesn't fit in 24 GB.
What is the largest model the RX 7900 XTX can run?
Qwen3.6 35B A3B (36.0B) is the largest at 4-bit or better: at Q4_K_M it uses 22.0 GB of 24 GB, and runs at about 76.7 tok/s.
Can the RX 7900 XTX run Qwen3.8 27B?
Yes. Qwen3.8 27B fits at Q4_K_M, using 17.9 GB of 24 GB, and it is the best model that runs well on this card.
Can the RX 7900 XTX run 70B models?
No. Llama 3.3 70B Instruct needs 51.3 GB at Q4, more than the 24 GB on this card.
How many tokens per second does the RX 7900 XTX give?
About 33.1 tok/s on Qwen3.8 27B at Q4_K_M, with the first token after 8.4 s on a 4K-token prompt.
What power supply does the RX 7900 XTX need?
Plan a 750 W PSU (2× the 355 W TDP).
Is 24 GB enough for coding and agents?
Yes for coding: Qwen3.8 27B, the best of the 9 coding models that fit, runs at about 33 tok/s. For agents, not yet: no agent-scored model fits in less than 96 GB.
Is renting cheaper than buying an RX 7900 XTX?
An H100 (80 GB) rents from $2.69/hr. Renting costs as much as buying after ≈400 hours (≈0.3 years at 4 h a day).