Guide
RX 7800 XT vs RX 7900 XT — does the 7800 XT at ~$475 close 1440p, or does the 7900 XT at +$200 actually change your monitor?
You probably landed here from r/buildapc, a r/buildapcsales ping, or a PCPartPicker list with a Pulse 7800 XT already in the cart — not from an Nvidia slug. Same RDNA 3 stack, 7800 XT first framing: RX 7800 XT (Navi 32, 16 GB, ~263 W, $475–$600 new before tax) versus RX 7900 XT (Navi 31, 20 GB, ~315 W, $775–$950). In plain raster the 7900 XT leads ~18–23% (Cyberpunk 1080p: ~128 vs ~108 FPS). Both ship FSR 3 and AMF — the stub telling you to pick the 7800 XT for DLSS 3 / NVENC or crediting the 7800 XT with 20 GB is nonsense. This is not 7700 XT vs 7800 XT or 4080 vs 7900 XT: only two high-end Radeons with US street pricing July 2026.
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PC4Games verdict — 7800 XT default for QHD, 7900 XT only on sale or for 4K
RX 7800 XT new for ~85% of AMD 1440p GPU buys in July 2026: 16 GB, best $/FPS, 263 W, and ~82–85% of 7900 XT FPS in our reference titles — plenty on a 27″ WQHD 144 Hz panel.
RX 7900 XT only if you target 4K medium-high, native 1440p ultra without FSR on every AAA patch, or you catch a card under ~$700–$775 on Micro Center / Newegg flash sales — not because it is « more efficient » or « better for DLSS ».
Auto-comparator trap: Nvidia template bleed (DLSS, NVENC) and swapped VRAM. The 7800 XT has 16 GB; the 7900 XT 20 GB. Filter your Steam library on the PC4Games comparator before you checkout.
Why « 7800 vs 7900 » search intent — and 7900 XT ≠7900 XTX
The order 7800 → 7900 usually means a ~$475 GPU budget is already set and you wonder whether to step up inside Team Red. MSRP gap was $200 ($499 vs $899 at launch); US street pricing often shows +$225 to +$275 between Amazon listings even when a Pulse dips near $475.
Confusion #1 on r/Amd: 7900 XT (20 GB, ~315 W) ≠7900 XTX (24 GB, ~355 W, tier above). Want the XTX? Wrong page — see 4080 vs 7900 XT for the Nvidia cross-shop.
Confusion #2: RX 9070 XT threads in 2026. While new US pricing stays > ~$550 for 7900 XT-class raster, the 7800 XT remains the rational tier in a ~$1,200 build; the 7900 XT only makes sense on sale or with a 4K monitor already on the desk.
US price floors — when +$200 for a 7900 XT starts to math out
7800 XT new ≤ ~$500 (Newegg shell shocker, Pulse, Merc 319): hard to justify +$225 for ~20% FPS — unless you run a 32″ 4K panel or refuse FSR Quality entirely.
7800 XT between ~$500 and $600: normal band July 2026. A 7900 XT under ~$700 on sale can compete on $/FPS; above ~$775, stay on the 7800 XT.
7900 XT > ~$825 without a deal: no as an upgrade from a 7800 XT. At that money, cross-shop a 4070 Super (4070 Super vs 7800 XT) or wait for 9070 XT pricing to settle. Tracker: US GPU price study.
Benchmark table — 7800 XT in column A, raster FPS July 2026
PC4Games reference (High/Ultra, no FSR Frame Generation). Numbers match the GpuComparison widget on this URL.
| Metric | RX 7800 XT | RX 7900 XT | Edge |
|---|---|---|---|
| Typical street price | $475–$600 new | $775–$950 new | 7900 XT +$200 to +$250 |
| VRAM | 16 GB GDDR6 | 20 GB GDDR6 | 7900 XT +4 GB |
| Die / bus | Navi 32 (256-bit) | Navi 31 (320-bit) | 7900 XT flagship die |
| Reference board power | ~263 W | ~315 W | 7800 XT −52 W |
| Availability 2026 | Wide new stock | New / promos | 7800 XT $/FPS |
| Cyberpunk 2077 1080p | ~108 FPS | ~128 FPS | +20 → 7900 XT |
| Fortnite 1080p | ~196 FPS | ~235 FPS | +39 → 7900 XT |
| Hogwarts Legacy 1080p | ~96 FPS | ~116 FPS | +20 → 7900 XT |
| CoD Warzone 1080p | ~175 FPS | ~210 FPS | +35 → 7900 XT |
| RDR2 1080p | ~116 FPS | ~140 FPS | +24 → 7900 XT |
| Cyberpunk 1440p | ~78 FPS | ~96 FPS | +18 → 7900 XT |
| Fortnite 1440p | ~126 FPS | ~155 FPS | +29 → 7900 XT |
| FSR 3 Frame Gen | Yes | Yes | Tie — stub fixed |
| Stream encode | AMF | AMF | Tie |
The $/FPS math — paying ~55% more for ~20% frames
At ~$475 for a 7800 XT and ~$725 for a typical 7900 XT, you pay ~55% more for ~20% FPS — roughly $12 per extra FPS point on Cyberpunk 1080p, before sales tax.
On a 27″ 1440p 144 Hz monitor, moving from ~78 to ~96 FPS (Cyberpunk 1440p) shifts the experience category: the 7800 XT stays comfortable in high; the 7900 XT inches toward stable native ultra without FSR.
In 1080p competitive, the 7800 XT already clears 175–196 FPS on Warzone or Fortnite. The 7900 XT buys headroom your 24″ 240 Hz panel cannot display — ~$475 GPU in a ~$1,200 gaming PC? The 7800 XT frees budget for 32 GB RAM or a 1 TB SSD instead of invisible shaders.
1080p 240 Hz — the 7800 XT is not the bottleneck
Fortnite 1080p: ~196 vs ~235 FPS. Warzone: ~175 vs ~210 FPS. Both saturate a 24″ 240 Hz panel on competitive presets — the 7900 XT is comfort spend, not a ranked requirement.
On CS2, Valorant, Apex, CPU, RAM, and latency decide outcomes long before 20% GPU margin. Threads pushing the 7900 XT « for 1080p esports » ignore that the 7800 XT is already overkill at that resolution.
Edge case: 1080p60 stream + 1080p240 game with heavy OBS filters. The 7900 XT handles multitasking better — but AMF is identical; the margin is raster, not a different encoder.
1440p ultra and light 4K — where ~20% can actually show up
Cyberpunk 1440p: ~78 vs ~96 FPS. Hogwarts: ~69 vs ~84 FPS. RDR2: ~88 vs ~108 FPS. The gap widens in QHD — the 7900 XT stands out if you skip FSR Quality and want stable native ultra.
With FSR Quality + FG on both cards, the raster hole shrinks: the 7800 XT recovers on AMD-friendly titles. If you already upscale, the 7900 XT loses part of its pitch.
Going 4K this year? The 7900 XT defends a 32″ 4K 60 Hz setup better; for 1440p only, see 1440p gaming PC. Nvidia cross-shop: 4070 Super vs 7800 XT.
Stub fix — no DLSS/NVENC, VRAM is 16 GB vs 20 GB (not reversed)
Generic copy « pick the 7800 XT for DLSS 3 / NVENC » is wrong: these are AMD GPUs — FSR 3, Reflex (where supported), and AMF on both. That is not a reason to choose the 7800 XT.
« The 7800 XT stays competitive thanks to 20 GB » — reversed: 7800 XT = 16 GB; 7900 XT = 20 GB. The auto stub swaps VRAM columns.
« The 7900 XT is more efficient » or « buy the 7800 XT new for top performance » — backwards: the 7900 XT wins raster; the 7800 XT wins $/FPS and watts (263 vs 315 W). 750 W Gold recommended for the 7900 XT; 650 W is fine for the 7800 XT with Ryzen 5 / Core i5.
7900 XTX, RX 9070 XT, and prebuilts — traps outside this page
7900 XTX 24 GB: different die, different money (~$850–$1,000 launch MSRP, ~$700–$800 street in 2026 on good weeks). Do not compare it here to the 7800 XT 16 GB.
RX 9070 XT: if it lands ≤ ~$550 new with raster near a 7900 XT, both 7800 XT and 7900 XT leave the table — watch r/buildapcsales before you lock a cart.
Prebuilt Best Buy / CyberPowerPC with 7900 XT OEM: check TDP, length, and PSU (often 750 W tight). Sometimes a 7800 XT config at the same out-the-door price is healthier — PC buying mistakes.
Amazon, Newegg, Micro Center — where to buy what July 2026
RX 7800 XT new: $475–$600 (Pulse, Merc 319, Nitro+). Under ~$500 on promo = strong; above ~$600, wait for a buildapcsales alert or price a 7900 XT under ~$650.
RX 7900 XT new: $775–$950 on Amazon / Newegg. Under ~$700 on sale = interesting for 4K or native 1440p ultra; > ~$750 → 7800 XT plus better $/FPS.
Market overview: best graphics card 2026. PSU sizing: gaming PC power supply.
Six buyer profiles — 7800 XT default or sale 7900 XT only
New GPU, ~$1,200 build, 1440p high/ultra → 7800 XT.
7900 XT < ~$650 sale, 4K or native 1440p ultra without FSR → 7900 XT.
1080p 240 Hz ranked only → 7800 XT; 7900 XT is luxury.
ITX case / 650 W PSU / −52 W → 7800 XT.
Stream + heavy RT at once → 7900 XT if priced right; else 7800 XT + FSR.
Unsure AMD vs Nvidia → 4070 Super vs 7800 XT, not a +$300 7900 XT stretch.
In between? PC4Games comparator with your Steam games.
Frequently asked questions
Is the RX 7800 XT faster than the 7900 XT?
No in plain raster — the 7900 XT leads by about 18–23% (Cyberpunk 1080p: ~128 vs ~108 FPS). The 7800 XT delivers ~82–85% of 7900 XT FPS for ~40% less money.
7800 XT or 7900 XT for a new buy in 2026?
RX 7800 XT — $425–$550 new, 16 GB, 263 W, best $/FPS at 1440p. 7900 XT only on sale under ~$650–700 or if you target 4K / native 1440p ultra without FSR.
Do both cards have DLSS 3?
No — these are AMD GPUs (FSR 3, AMF on both). Stub copy citing DLSS 3 or NVENC is a Nvidia template error.
7800 XT or 7900 XT for 1440p?
RX 7800 XT for 1440p high/ultra with occasional FSR. 7900 XT if you skip upscaling and want stable native ultra (~96 vs ~78 FPS Cyberpunk 1440p).
What PSU for 7800 XT or 7900 XT?
650 W 80+ Gold for the 7800 XT (~263 W TDP); 750 W recommended for the 7900 XT (~315 W TDP). The stub « PSU under 650 W » case for the 7800 XT overstates — 650 W is normal for AMD QHD.
7900 XTX or 7800 XT — same comparison?
No — the 7900 XTX has 24 GB and ~355 W TDP. This guide covers 7800 XT 16 GB vs 7900 XT 20 GB only.
What do they cost in the US in July 2026?
7800 XT new ~$425–$550 · 7900 XT new ~$700–$875 (Amazon/Newegg/Micro Center). Interesting 7900 XT floor: under ~$650–700 on sale.
7800 XT at ~$475 or 7900 XT at ~$725 — which wins?
7800 XT unless you find a 7900 XT under ~$650 and want 4K or native 1440p ultra without FSR. Around ~$725+, 7800 XT plus peripherals budget usually wins.
Sources & methodology
How we wrote this guide
PC4Games RX 7800 XT vs RX 7900 XT comparison (July 15, 2026). Indicative raster FPS without Frame Generation — US market Amazon/Newegg/Micro Center.
- 1080p/1440p benchmarks on Cyberpunk, Fortnite, Hogwarts Legacy, Warzone, RDR2 (7800 vs 7900 slug).
- Prices observed on Amazon, Newegg, Best Buy, Micro Center, and r/buildapcsales alerts in July 2026.
- Update if street prices move more than 10% in a quarter.
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