RX 6400
Prices & availability
Where to buy the RX 6400
| Store | Condition | Price (snapshot) | Value | Checked | Offer link |
|---|---|---|---|---|---|
| Newegg | New | $242 | 23 | Go to offer → | |
| Newegg | Refurbished | $188 | 27 | Go to offer → | |
| Amazon Affiliate | Not tracked | Not tracked | Not ranked | On Amazon | Check on Amazon |
3 additional offers across variants & stores
| Variant | Store | Condition | Price | Value | Checked | Offer link |
|---|---|---|---|---|---|---|
| ASRock RX 6400 Challenger ITX | Newegg | New | $359 | 17 | Go to offer → | |
| XFX Speedster SWFT105 RX 6400 | Newegg | New | $389 | 16 | Go to offer → | |
| PowerColor RX 6400 Low Profile | Newegg | New | $389 | 16 | Go to offer → |
The RX 6400 ranks #63 of 64 in-stock graphics cards by Relative Value under the balanced preset in the 2026-09-11 offer frame. Below: how it scores per scenario and what the math says about alternatives.
Is the RX 6400 worth it in September 2026? (value analysis)
It sits at #63 of 64 in balanced value — the "would enter" prices above show where it starts beating this frame's leaders. The current top 3 are within 5 points of each other, so leadership here is genuinely close.
Each letter answers “how well does this product handle that job?” — price is never part of it.
Near this price: #8 value · #1 capability within ±15% of this price · ±15% band
Scenario Tiers grade capability for each use — price excluded, identical to the tier list.
The scenario matrix below adds prices from the 2026-09-11 offer frame back in as Relative Value.
Value and price targets for every scenario (detailed table)
| Scenario (preset) | Relative Value | Strong Value at ≤ | Excellent Value at ≤ | Market-leading Value (100) at ≤ | Top value pick here |
|---|---|---|---|---|---|
| Balanced | 23 | $40 | $34 | $29 | RX 9070 XT |
| 1080p Budget | 25 | $76 | $67 | $61 | Arc A750 |
| 1440p Sweet Spot | 9 | $13 | $11 | $10 | RX 9070 XT |
| 4K Ultra / VR | 3 | $0 | $0 | $0 | RTX 5090 |
| Ray Tracing (1440p) | 7 | $7 | $6 | $5 | RX 9070 XT |
| AI / LLM | 0 | no price reaches 80+ here — other products dominate this scenario | RTX 5090 | ||
Relative Value is the 0–100 benefit/cost result computed within the current in-stock frame for each preset; the frame leader is 100 and other products show their relative share. Target prices are calculation thresholds under today's dataset; where none exist, the row says so instead of showing blanks. Recalculated on every data refresh.
Price & value history
What we actually observed — lowest tracked offer, average offer price, and value/rank position among products on sale now in this category.
- 🔥 At its tracked low. We have not observed the RX 6400 below $242 since 2026-07-15.
- ↕️ Swing of $147 between $242 (2026-07-15) and $389 (2026-07-21).
Across 53 tracked days we recorded the RX 6400 on 53 of them. The lowest tracked offer was $242 on 2026-07-15 and the highest $389 on 2026-07-21. Today's lowest total is $242, 5.7% below the 30-day average of $256. The average offer price across 4 retailers is $345 (42.8% above the cheapest). Price volatility is volatile (20.3% CV).
Prices are the cheapest total (item plus shipping) we recorded for a New, in-stock offer on that day. Value and rank here are measured against products on sale now — the set this product actually competes in — so they will not match a Value Score computed over the whole catalogue elsewhere on this page. A previous-generation part is ranked among previous-generation parts, because that is the choice a buyer of one is actually making.
Will the RX 6400 fit your PC? Power & size compatibility
| Recommended PSU | 250 W or higher |
| Board power (TDP) | 55 W |
| Card length | 170 mm |
| Slot size | 1 slots |
| Memory bus | 64-bit |
| Interface | PCIe 4.0 x4 |
| Power connectors | None |
Before buying, confirm your case clears a 170 mm card and your power supply provides 250 W or more with the right connector. AIB models vary in length, cooler thickness and power headers.
Best alternatives to the RX 6400 at similar prices
Chosen for Light Use & Efficiency, not for general performance — a product that suits a different job is not an alternative here. Tiers come from the same rubric as the tier list; products we can't grade for this job are left out rather than guessed at. Prices use the page's dated offer frame.
Used RX 6400 price & upgrade math (calculated)
We don't track live used-market listings yet, so here is an honest calculated guide instead. The cheapest new RX 6400 in the 2026-09-11 offer frame is $242. Two yardsticks for a unit in excellent condition: 80% of the cheapest new price ≈ $194, and $61 — the price at which its Value Score reaches a perfect 100 in its strongest scenario (1080p Budget). The lower of the two, ≈ $61, is a sensible ceiling if you're buying used and a realistic asking price if you're selling. Discount further for wear, mining history or a missing warranty — and score any real listing in the calculator.
Already own one? Selling it changes the upgrade math: what matters is the out-of-pocket cost — the upgrade's price minus what your card sells for — not the sticker price. At a ≈$61 resale, ranked by overall raster performance, the strongest paths right now are Arc A750 (+271% for ≈$149 out of pocket), Arc B580 (+371% for ≈$249 out of pocket), Arc A580 (+207% for ≈$139 out of pocket). The tool below re-ranks for a specific task (1440p, ray tracing, AI…) and shows each option's Scenario Tier, since a faster card can still be the wrong upgrade for your use.
FAQ
- What is a good price for the RX 6400 right now?
- The price targets at the top of this page are calculation thresholds, not forecasts: they say what the competing offers in the 2026-09-11 frame would have to be beaten by under the balanced weighting. Two caveats worth knowing — they move when the rest of the market moves, even if this product's own price doesn't; and hitting a target says the PRICE is good, not that the product suits your job (that's what the tier badges above answer). Change the weighting in the calculator and the targets change with it.
- Where can I buy the RX 6400?
- We track 5 offer(s) across stores, variants and conditions — the first 2 useful price highlights are shown above, with the other 3 in the additional-offers disclosure. Each row keeps its own checked date; always confirm the final price at the retailer.
- Is the RX 6400 worth it in September 2026?
- That depends on your scenario: its Relative Value ranges across presets in the scenario matrix above (currently #63 of 64 in-stock by balanced value in the 2026-09-11 offer frame). Use the live calculator to weigh your own priorities.
- How much power does the RX 6400 draw?
- Its board power (TDP) is 55W, and we suggest at least a 250W power supply for a typical single-GPU system. Higher-clocked AIB models can draw a little more — check the specific card.
- What is the RX 6400 best suited for?
- On our 1000-point GPU scale (RTX 4070 = 1000) it indexes 140 raster / 112 ray tracing / 42 AI. Use the scenario matrix to compare 1080p, 1440p, 4K, creation and AI capability.
- What is a fair used price for the RX 6400?
- We don't have live used-market data yet, so we calculate a guide: 80% of the cheapest new offer (≈$194) or the price where its Value Score reaches 100 in its strongest scenario ($61) — whichever is lower, ≈ $61 for a unit in excellent condition. Discount for wear, mining history or a missing warranty.
- Is a used RX 6400 worth it?
- A used or refurbished RX 6400 can undercut new pricing meaningfully — see the New / Refurbished / Used split in the offers table and our calculated used ceiling of ≈$61. Weigh the discount against no manufacturer warranty and seller risk; paste any listing into the calculator to score it against the current market.
- What is the best upgrade from the RX 6400?
- Counting a ≈$61 resale for your current card, the strongest computed paths in the 2026-09-11 offer frame are Arc A750 (+271% for ≈$149 out of pocket), Arc B580 (+371% for ≈$249 out of pocket), Arc A580 (+207% for ≈$139 out of pocket) — ranked by performance gained per dollar actually spent. Use the upgrade tool on this page for your own budget and resale estimate.
Offer frame: 2026-09-11 · dataset generated 2026-09-11 · formula gpu-value-v1.4-benefit-cost-product · Value Score is an estimate based on our current dataset, selected weights, market prices and methodology — not an official product rating or a price forecast. Target prices are calculation thresholds, not predictions. Methodology · Report a data error We are not a shop. Affiliate links may earn us a commission; they never change the calculations or the ranking.