AMD
RX 6900 XT
Representative tracked offer: ASRock RX 6900 XT Phantom Gaming D OC
16GB VRAMPerf: 1100300W
Relative Value74balanced preset
RX 6900 XT vs RTX 4070 Super — value comparison
NVIDIA
RTX 4070 Super
Representative tracked offer: GIGABYTE RTX 4070 SUPER WINDFORCE OC
12GB VRAMPerf: 1160220W
Relative Value73balanced preset
RX 6900 XT and RTX 4070 Super are practically even under balanced weights at the current dataset offers: 74 vs 73. Change the preset or your priorities before deciding.
Price data · US · USD · New · A 2026-08-21 · B 2026-08-21Coverage · 8 tracked new-offer records across both modelsBenchmark confidence · no estimate flags on these two recordsAffiliate links · We may earn a commission from these links. Scores are calculated separately using our methodology.
Checking today's prices… This shared scoring frame includes an offer with a 24-hour freshness window, so price-derived results finish loading in your browser a moment from now. Capability, performance and verified specifications are already final.
02 · Decision matrix
One decision, three separate questions
Capability ignores price. Relative Value adds the current dataset offers and your priorities. Keeping them separate prevents a cheap product from being mistaken for the faster product.
The decision, split by questioncapability · value · price are separate answers
Capability by task
| Scenario | RX 6900 XT | RTX 4070 Super |
|---|---|---|
| 1080p Gaming | S#17 | S#15 |
| 1440p Gaming | A#17 | A#15 |
| 4K / VR | B#17 | B#15 |
| Ray Tracing @ 2K (1440p) | C#22 | C#15 |
| AI / Local LLM | D#44 | B#10✓ |
| 3D Rendering | C#31 | B#11✓ |
| Light Use & Efficiency | C#46 | C#32 |
RTX 4070 Super grades higher in 2 of 7 graded scenarios (5 tied) and is never graded lower. These are the same S–F grades as the tier list — capability only, price excluded. The value rows below add prices from the 2026-08-21 offer frame. How tiers are assigned →
Relative Value by priority
Balancedpractically even (≤3 pts)
74
73
1080p Budgethigher relative value lit
69 ✓
64
1440p Sweet Spotpractically even (≤3 pts)
63
65
4K Ultra / VRhigher relative value lit
42
48 ✓
Ray Tracing (1440p)higher relative value lit
47
63 ✓
AI / LLMhigher relative value lit
5
27 ✓
Both products are normalized within the same in-stock market frame per preset. A check marks the higher Relative Value; a difference of 3 points or less is shown as practically even.
Crossover price is loading. The switch-over point and Strong Value threshold appear as soon as today's offer snapshots are confirmed in your browser.
03 · Price crossover
The price changes the answer
Current offers, crossover points and Strong Value thresholds answer different questions. Thresholds are calculations, not price forecasts.
A · RX 6900 XT
- Current dataset offer · NewUS · USD · snapshot 2026-08-21
- $599
- Beats RTX 4070 Super atbalanced weights; rival offer held fixed
- $613
- Strong Value at80+ Relative Value threshold
- $539
B · RTX 4070 Super
- Current dataset offer · NewUS · USD · snapshot 2026-08-21
- $812
- Beats RX 6900 XT atbalanced weights; rival offer held fixed
- $794
- Strong Value at80+ Relative Value threshold
- $715
04 · Capability
Capability indexes, side by side
Price is intentionally excluded here so the more capable product and the better-value product cannot be confused.
Raster performance
1100
1160
1160
Ray tracing
827
1167
1167
AI (FP16 tensor)
198
1217
1217
A · RX 6900 XTB · RTX 4070 SuperGPU indexes share one 1000-point scale (RTX 4070 = 1000).The Value leader depends on how you weight things: RX 6900 XT leads under 1 preset, RTX 4070 Super under 3, 2 practically even.
05 · Platform & ownership
Fit, compatibility and ownership context
Only verified structured fields are shown. Physical fit, connectors, cooling and typical warranty belong to the representative tracked partner card named in each column; other board variants can differ.
A · RX 6900 XT
- Representative offer variantASRock RX 6900 XT Phantom Gaming D OC
- Host interfacePCIe 4.0 x16
- Suggested PSU700 W
- Power connectors3x 8-pin
- Card length330 mm
- Expansion slots3-slot
- Coolingair
- Display outputs1× HDMI · 3× DisplayPort
- Warranty (typical new)24 mo
B · RTX 4070 Super
- Representative offer variantGIGABYTE RTX 4070 SUPER WINDFORCE OC
- Host interfacePCIe 4.0 x16
- Suggested PSU550 W
- Power connectors1x 16-pin
- Card length261 mm
- Expansion slots2-slot
- Coolingair
- Display outputs1× HDMI · 3× DisplayPort
- Warranty (typical new)36 mo
3-year electricity model
Over 3 years at 4h/day and $0.15/kWh, RX 6900 XT (300 W) adds about $99 in modeled electricity and RTX 4070 Super (220 W) about $72. The modeled difference is roughly $27. This uses rated power as a common comparison input, not a promise of wall-power consumption.
06 · Specifications
Key specifications
Reference-GPU fields and representative-offer fields are labelled separately. Directional checkmarks appear only where more or less has a clear meaning; they are not an overall verdict.
| Specification | RX 6900 XT | RTX 4070 Super |
|---|---|---|
| Architecture | RDNA 2.0 | Ada Lovelace |
| VRAM | 16 GB✓ | 12 GB |
| Memory type | GDDR6 | GDDR6X |
| Memory bus | 256-bit✓ | 192-bit |
| Host interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| Boost clock | 2,340 MHz | 2,505 MHz |
| Board power (lower is better) | 300 W | 220 W✓ |
| Suggested PSU (representative offer) | 700 W | 550 W |
| Power connectors (representative offer) | 3x 8-pin | 1x 16-pin |
| Card length (representative offer) | 330 mm | 261 mm✓ |
| Warranty (representative offer) | 24 mo | 36 mo✓ |
| Current dataset offer · New | $599snapshot 2026-08-21✓ | $812snapshot 2026-08-21 |
Show additional verified specifications
| Specification | RX 6900 XT | RTX 4070 Super |
|---|---|---|
| Process node | 7 nm | 5 nm |
| Base clock | 1,925 MHz | 1,980 MHz |
| Memory data rate | 16 Gbps | 21 Gbps |
| Expansion slots (representative offer) | 3-slot | 2-slot✓ |
| Cooling fans (representative offer) | 3 | 2 |
| Display outputs (representative offer) | 1× HDMI · 3× DisplayPort | 1× HDMI · 3× DisplayPort |
| Cooling type (representative offer) | air | air |
“Not tracked” means the source data does not contain a verified value; no default or guessed specification is substituted.
07 · Customize
Try other models and your own priorities
Presets are starting points. Swap either side, then open Advanced weights only if you want to tune the formula directly.
08 · Alternative
A third option worth checking
The same scenario and market frame checks whether another currently priced model offers a cleaner trade-off.
No cleaner third option in this dataset
The scenario-aware check did not find a currently priced alternative that improves this decision without changing the trade-off. This is a dataset result, not a claim that no other product exists.
A price-aware third suggestion appears once today's offer snapshots are confirmed in your browser.
09 · Decision guide
Choose based on the trade-off you actually want
These are evidence-linked conditions, not universal buying verdicts. Feature ecosystems, software support and platform preferences remain your call.
Choose A · RX 6900 XT if…
- Your priorities resemble 1080p Budget — it has higher Relative Value under those presets at the snapshot offers.
- You can find it at or below its Strong Value threshold of $539 under balanced weights.
Choose B · RTX 4070 Super if…
- You prioritize AI / Local LLM, 3D Rendering — it earns the higher capability tier in those tracked scenarios.
- Your priorities resemble 4K Ultra / VR, Ray Tracing (1440p), AI / LLM — it has higher Relative Value under those presets at the snapshot offers.
- Lower rated power matters: 220 W versus 300 W for RX 6900 XT.
- You can find it at or below its Strong Value threshold of $715 under balanced weights.
10 · Methodology & FAQ
Read the methodology →How to read this comparison
The formula is a linear weighted sum inside the current comparison frame. Capability, price and user priorities stay visible as separate inputs so the result can be challenged and changed.
- Which is better value right now: RX 6900 XT or RTX 4070 Super?
- Under the balanced preset and the 2026-08-21 offer frame, they are practically even in Relative Value (74 vs 73). Change the preset or weights to reflect your own priorities; capability is a separate question, answered by the tier table.
- Which one is more capable, ignoring price?
- RTX 4070 Super grades higher in 2 of 7 graded scenarios (5 tied) and is never graded lower.
- Where can I compare current offers for both?
- Dated offer snapshots for both models are listed on their product pages (linked above); the interactive calculator recalculates both with your own weights and budget.
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Offer frame: 2026-08-21 · dataset generated 2026-08-21 · 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