Two Last-Gen GPUs, One Clear 1440p Sweet Spot
The RTX 4070 and RX 7900 GRE launched within a year of each other targeting the same $549–$599 price window, and in 2026 they are both available on the used market for around $415–$480 — well below their original asking price. The RTX 50 series has pushed new-card prices beyond $600 for anything mid-range, which makes these two last-gen cards the most sensible 1440p purchases available right now.
The problem is they are genuinely different GPUs underneath the similar price tag. The RX 7900 GRE packs 16GB of VRAM and pulls ahead in rasterization. The RTX 4070 draws less power, dominates in ray tracing, and carries the DLSS ecosystem. Picking the wrong one for your games and setup is easy to do if you are just looking at benchmark averages.
This guide breaks down 1440p benchmarks, the VRAM question, the DLSS vs AFMF feature battle, and 2026 used-market pricing — ending with a verdict table so you can match the right card to your situation. If you are also looking to squeeze more from whichever GPU you choose, our PC optimization guide walks through OS and driver-level changes that add free frames on both platforms.
Specs at a Glance
| Spec | RTX 4070 | RX 7900 GRE |
|---|---|---|
| Architecture | Ada Lovelace (AD104) | RDNA 3 (Navi 31) |
| Shaders / CUs | 5,888 CUDA cores | 80 Compute Units |
| VRAM | 12 GB GDDR6X | 16 GB GDDR6 |
| Memory bus | 192-bit | 256-bit |
| Memory bandwidth | 504 GB/s | 576 GB/s |
| TDP | 200 W | 260 W |
| Launch MSRP | $599 | $549 |
| Used price (Mar 2026) | ~$479 | ~$415–$484 |
The RX 7900 GRE’s wider 256-bit memory bus and 16GB VRAM are its hardware story. The RTX 4070’s advantage is 60W lower TDP and the DLSS feature stack.
1440p Rasterization: The RX 7900 GRE Leads
In pure rasterization — the rendering path used in the vast majority of games — the RX 7900 GRE runs 5–17% faster than the RTX 4070 at 1440p depending on the title. GamersNexus benchmarks of the RX 7900 GRE against the RTX 4070 Super (which is a few percent faster than the base 4070) show the GRE returning 157 FPS in Resident Evil 4 at 1440p versus roughly 143 FPS for the 4070 Super, a 10% advantage. Dying Light 2 shows the GRE at 118 FPS to the 4070 Super’s 111 FPS (+6%), and Starfield lands at 91 FPS vs 87 FPS (+5%).
In synthetic workloads the gap widens: the GRE scores 21,644 in 3DMark versus the RTX 4070’s 17,846 — a 21.3% lead. The reason is the wider 256-bit memory bus. AMD’s midrange cards are architected to scale at higher resolutions, while NVIDIA’s 192-bit bus in the 4070 creates a bandwidth ceiling that becomes more visible above 1440p. At 4K the GRE’s rasterization advantage grows to roughly 12–15% over the base 4070.
At 1440p on a 144Hz monitor running standard rasterization titles — think Cyberpunk without RT, Elden Ring, Hogwarts Legacy, or most competitive shooters — the RX 7900 GRE is the stronger card. The extra headroom translates to consistently higher average frame rates without needing to drop settings.
Ray Tracing: NVIDIA’s Clear Advantage
Flip to ray tracing and the performance hierarchy reverses. The RTX 4070 uses NVIDIA’s dedicated RT cores with higher per-core efficiency, and the difference is not marginal. In Cyberpunk 2077 at 1080p Medium ray tracing, the RTX 4070 Super leads the RX 7900 GRE by 34%. At 1080p Ultra ray tracing, the lead reaches 63%. Dying Light 2 with ray tracing enabled shows the 4070 Super ahead by 24%.
These numbers come from 1080p RT tests where GPU headroom is more available; at 1440p RT, both cards lean on upscaling to reach playable frame rates, but the RTX 4070’s DLSS implementation is meaningfully better than FSR in image quality, which is discussed in the features section below.
If your library skews toward RT-heavy titles — Cyberpunk, Alan Wake 2, Indiana Jones and the Great Circle, or any game where you want RT on as a default — the RTX 4070 is the correct choice. The RX 7900 GRE’s rasterization lead disappears the moment you turn RT on in the games where it matters most.
VRAM: Does 16GB vs 12GB Matter at 1440p?
The short answer: not right now, but it will. At 1440p with standard quality presets, most games in 2026 stay comfortably within 10–11 GB of VRAM. The RTX 4070’s 12GB provides adequate headroom for the current library at this resolution. However, a small number of demanding titles are already approaching that ceiling.
Indiana Jones and the Great Circle, for example, uses approximately 11GB at 1440p Ultra settings and up to 14GB when pushed to maximum. Alan Wake 2 can exceed 12GB at 1440p with the highest texture settings. For the RTX 4070, hitting the VRAM limit means texture pop-in and inconsistent frame pacing — the kind of stutter that persists regardless of average FPS. Dropping to High textures (instead of Ultra) typically saves 1–2GB with negligible visual loss, which is the right workaround on a 12GB card in these specific titles.
The RX 7900 GRE’s 16GB eliminates that calculation entirely. Combined with its wider 576 GB/s memory bandwidth (vs 504 GB/s on the 4070), the GRE handles high-texture scenarios with more consistency. For anyone planning to hold the card through 2027–2028, the VRAM advantage is real. For a 2026-only frame, it is only occasionally relevant at 1440p.
DLSS 3 vs FSR 3 + AFMF: The Feature Calculus
The RTX 4070 supports NVIDIA’s DLSS 3 suite: frame generation, DLSS 3.5 upscaling, Reflex (latency reduction), and Ray Reconstruction (improved RT image quality). DLSS frame generation is supported in roughly 100–150 games as of 2026, with most major AAA titles and many popular live-service games included. Image quality from DLSS Super Resolution remains the benchmark that AMD’s FSR has been working to match.
The RX 7900 GRE brings FSR 3 in-game (similarly broad support in new releases) plus AMD Fluid Motion Frames (AFMF). AFMF is the significant differentiator: it applies frame generation at the driver level across virtually any DirectX 11 or DirectX 12 game, regardless of whether the developer has added FSR 3 support. That means frame generation in games that will never receive DLSS or FSR updates — older titles, niche releases, games from smaller studios.
FSR 3.1 has narrowed the image quality gap: in Spider-Man: Miles Morales testing, FSR 3.1 frame generation outperformed DLSS 3 on the RTX 4070, signalling that AMD’s open-source approach is now broadly competitive. One important note for RTX 4070 buyers: DLSS 4 Multi Frame Generation (which generates up to three frames per rendered frame) requires Blackwell hardware — the RTX 50 series. It does not come to the RTX 40 series. The 4070’s DLSS ceiling is single-frame generation.
Verdict: if you care about DLSS specifically in particular games (especially those without FSR 3 support), the RTX 4070 is the right call. If you want frame generation available across your entire library — including every older title in your backlog — the RX 7900 GRE’s AFMF is a broader tool.
Power Draw and Build Fit
The RTX 4070 runs at 175–192W under gaming load, making it comfortable in a 650W PSU system with headroom for a modern CPU. The RX 7900 GRE draws 250–270W under load and requires a 750W PSU minimum for a typical high-end gaming build. The 60–80W difference also affects thermals and fan noise — the RTX 4070 runs noticeably quieter at sustained loads in most AIB cooler designs.
For small-form-factor builds, compact ITX cases, or systems where the PSU is not being replaced, the RTX 4070’s efficiency is a practical constraint, not just a benchmark footnote. The RX 7900 GRE is a large card that draws significant power; it belongs in a full-size case with adequate airflow and a 750W or 850W PSU.
2026 Pricing: Used Market Is Where the Value Lives
Both the RTX 4070 and RX 7900 GRE are discontinued. Retail prices in March 2026 have drifted significantly above original MSRP due to tariff pressures and diminished supply: the RX 7900 GRE is listed at approximately $799 new, the RTX 4070 at roughly $703. Neither figure represents good value when the RTX 5060 Ti and RX 9060 XT are launching or available in the $349–$379 range with better performance-per-dollar.
The used market is where both cards make sense. RX 7900 GRE units are selling for $415–$484 on eBay; RTX 4070 cards are clustered around $479. At those prices, the RX 7900 GRE is the more aggressive value proposition: more VRAM, higher rasterization performance, and broader frame generation support, for the same or slightly lower price than the 4070. If you find a clean GRE for $415–$440, that is the best 1440p purchase in this price bracket right now.
Do not pay retail for either card. The new-market alternatives at lower prices (RTX 5060 Ti, RX 9060 XT) offer more relevance for long-term ownership.
Verdict: Which GPU for Your Setup?
| Your Situation | Best Pick | Why |
|---|---|---|
| 1440p 144Hz, mostly non-RT games | RX 7900 GRE | 5–17% faster in rasterization; 16GB VRAM headroom |
| Ray tracing is a priority | RTX 4070 | 34–63% faster in heavy RT; better DLSS image quality |
| SFF build or 650W PSU | RTX 4070 | 175W vs 260W — real constraint, not a preference |
| Frame generation across all games | RX 7900 GRE | AFMF works on thousands of DX11/12 titles at driver level |
| Best used-market value right now | RX 7900 GRE | ~$415–$440 used beats RTX 4070 on performance-per-dollar |
| Holding the card through 2027–2028 | RX 7900 GRE | 16GB VRAM buffer as game textures grow |
| DLSS-specific game library | RTX 4070 | DLSS 3 FG + Reflex + Ray Reconstruction in ~100–150 titles |
Frequently Asked Questions
Is the RTX 4070 still worth buying in 2026?
Yes, in specific scenarios. If ray tracing is important to you, your PSU is 650W or below, or you are in a compact build, the RTX 4070’s 175W TDP and strong RT performance make it the better fit. On the used market at ~$479, it is a solid 1440p card for the next two years. The argument against it is that the RX 7900 GRE typically delivers better rasterization performance at a similar or lower used price.
Does the RX 7900 GRE beat the RTX 4070 at 1440p?
In rasterization (the rendering mode used by most games), yes — by 5–17% depending on the title. In ray tracing, the RTX 4070 wins by 34–63% in demanding RT scenes. The GRE is the faster card for average gaming use; the 4070 is the faster card for RT-heavy games specifically.
What PSU do I need for each card?
The RTX 4070 is comfortable in a 650W system alongside a modern CPU. The RX 7900 GRE draws 60–80W more and needs a 750W PSU minimum for a stable gaming build with a high-end processor. Budget builds with a 650W PSU should default to the RTX 4070 to avoid power-related instability.
Should I buy new or used in 2026?
Used, unambiguously. Retail prices for both cards have risen well above their original MSRP due to stock constraints. The used market has both cards available at $415–$484, which is the correct price range for last-gen hardware. Alternatively, new RTX 5060 Ti or RX 9060 XT cards in the $349–$379 range deliver comparable or better performance with current-gen driver support and longer software support windows.
Sources
- AMD Radeon RX 7900 GRE GPU Review & Benchmarks — GamersNexus
- RX 7900 GRE vs RTX 4070 Pricing & Performance (Mar 2026) — BestValueGPU
- RTX 4070 vs RX 7900 GRE Faceoff — Tom’s Hardware (tomshardware.com)
- RX 7900 GRE vs RTX 4070: Which Mid-Range GPU Should You Buy? — TechRadar (techradar.com)