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AI Choice Engine

GPU comparison

Radeon RX 7900 XTX vs Radeon RX 9070 XT

Compared on the specs that decide a purchase: memory, bandwidth, power, and which workloads each card actually fits — gaming, creative, or local models when that is the job.

Specifications verified October 2, 2026. Launch MSRP is not today's price — in September 2026 the memory shortage pushed street prices 1.2×–3× above it; the notes row below carries a dated lowest UK/US price where we have one.

Radeon RX 7900 XTX

AMD

Radeon RX 7900 XTX

24GB VRAM · 960 GB/s

vs
Radeon RX 9070 XT

AMD

Radeon RX 9070 XT

16GB VRAM · 640 GB/s

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GPU specification, memory, bandwidth, and price comparison
SpecificationRadeon RX 7900 XTXRadeon RX 9070 XT
VendorAMDAMD
MemoryWinner: 24GB16GB
Usable for a modelWinner: 24GB16GB
BandwidthWinner: 960 GB/s640 GB/s
Segmentconsumerconsumer
ReleasedDecember 13, 2022March 6, 2025
Launch MSRP~$999~£740~$599~£444
NotesAMD specifies 24GB GDDR6 and up to 960GB/s memory bandwidth; the separate cache-based effective bandwidth figure is not substituted here. Launch notice lists December 13, 2022 availability at a $999 suggested e-tail price. Current production status and stock are unverified. Local-model fit is a planning estimate; model files, context, cache, backend and driver support determine actual memory use and speed.AMD specifies 16GB GDDR6 and up to 640GB/s memory bandwidth. Launch notice lists March 6, 2025 availability at a $599 suggested e-tail price. Local-model fit is a planning estimate; model files, context, cache, backend and driver support determine actual memory use and speed.
UK street priceSearch Amazon (opens in new tab)Search Amazon (opens in new tab)

Local models

Estimated local-model fit

Planning estimates from published VRAM and a weights-plus-overhead heuristic. Context length, KV cache, quantization and runtime can change actual memory needs.

Local model fit comparison for both GPUs
ModelRadeon RX 7900 XTX (est.)Radeon RX 9070 XT (est.)
Qwen 3 4B4B parametersEst. fitEst. fit
Qwen 3.8 27B27B parametersEst. fitEst. no fit
Gemma 4 31B30.7B parametersEst. tightEst. no fit
Llama 3.1 8B Instruct8B parametersEst. fitEst. fit
Qwen 3 14B14.8B parametersEst. fitEst. fit
Gemma 3 27B27B parametersEst. fitEst. no fit
Qwen 3 30B-A3B30.5B parametersEst. tightEst. no fit
Qwen 3 32B32.8B parametersEst. tightEst. no fit
Llama 3.3 70B70B parametersEst. no fitEst. no fit
Muse Glimmer 30B29.6B parametersEst. tightEst. no fit
Mixtral 8x22B141B parametersEst. no fitEst. no fit
Qwen 3 235B-A22B235B parametersEst. no fitEst. no fit
Qwen 3 Coder 480B-A35B480B parametersEst. no fitEst. no fit
DeepSeek V4-Flash284B parametersEst. no fitEst. no fit

Common questions

Radeon RX 7900 XTX vs Radeon RX 9070 XT

Answered from the verified figures on this page rather than general guidance.

Which costs less at launch MSRP, Radeon RX 7900 XTX or Radeon RX 9070 XT?
Radeon RX 9070 XT launched lower at ~$599 against ~$999 for Radeon RX 7900 XTX. Launch MSRP is an anchor, not a live price.
Which is better for high-refresh gaming, Radeon RX 7900 XTX or Radeon RX 9070 XT?
Radeon RX 7900 XTX has more memory bandwidth — 960 GB/s against 640 GB/s. That usually helps high-refresh 1440p and 4K once VRAM is sufficient for your settings. Still verify with dated independent tests for the games you play.
Which has more VRAM for gaming and creative work, Radeon RX 7900 XTX or Radeon RX 9070 XT?
Radeon RX 7900 XTX — 24GB usable against 16GB on Radeon RX 9070 XT. Extra memory helps texture mods, video timelines, and 3D scenes before it helps esports frame rates.
For local inference only — which holds larger models, Radeon RX 7900 XTX or Radeon RX 9070 XT?
Radeon RX 7900 XTX. With 24GB usable against 16GB it additionally holds Qwen 3.8 27B, Gemma 4 31B, Gemma 3 27B, Qwen 3 30B-A3B, Qwen 3 32B, Muse Glimmer 30B at Q4.
For local inference only — is Radeon RX 7900 XTX or Radeon RX 9070 XT faster at generating tokens?
Radeon RX 7900 XTX, at 960 GB/s against 640 GB/s — roughly 1.5× the memory bandwidth. Bandwidth is the practical ceiling on token throughput once a model fits, but it only matters if the model fits in the first place.
For local inference only — can either run a 70B model?
Neither. A 70B model needs about 48GB at Q4 including overhead, above both cards. The largest that fits is Qwen 3 32B on Radeon RX 7900 XTX and Qwen 3 14B on Radeon RX 9070 XT.

If one card holds a model the other cannot, that capacity difference usually outweighs a bandwidth advantage. A model that spills to system memory can be substantially slower, but the actual impact depends on the backend, transfer path, context, and workload.

All GPU comparisonsCompare hosted models instead