Coding with AI / RTX 4070 Ti S
RTX 4070 Ti S
Memory: 16 GB.
Memory bandwidth: 672 GB/s.
Generation speed is bound by the chip's bandwidth; memory decides which models fit.
smartDevstral Small 268% on SWE-bench Verifiedfrozen~41 tok/s · estimated How to run
Devstral Small 2 smart
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Score: 68% (SWE-bench Verified),
source
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Speed: 41 tok/s (estimate: bandwidth-bound approximation)
- Conditions: engine llama.cpp, quant Q4_K_M, context 128
- Min memory: 16 GB
- Command:
llama-server -m devstral-small-2-Q4_K_M.gguf
gpt-oss-20b fast
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Score: 60.7% (SWE-bench Verified),
source
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Speed: 150 tok/s (estimate: bandwidth-bound approximation)
- Conditions: engine llama.cpp, quant MXFP4, context 128
- Min memory: 12 GB
- Command:
llama-server -m gpt-oss-20b-MXFP4.gguf
Every number above is either a measurement with a source or a labeled estimate with a method.
Unlabeled estimates do not exist on this site.
Ceiling timeline
The strongest model fitting RTX 4070 Ti S (16 GB) at its release date, by SWE-bench Verified.
- 2025-08-05 gpt-oss-20b 60.7%
- 2025-12-09 Devstral Small 2 68%