- Top Pick: Sapphire Technology Pulse AMD Radeon RX 6600 XT Gaming Graphics Card with 8GB GDDR6, AMD RDNA 2 (11309-03-20G) (Renewed)
- Best Value: ASUS Dual AMD Radeon RX 6600 XT OC Edition 8GB GDDR6 Gaming Graphics Card (AMD RDNA 2, PCIe 4.0, 8GB GDDR6 Memory, HDMI 2.1, DisplayPort 1.4a, Axial-tech Fan Design, 0dB Technology) (Renewed)
- Premium Choice: XFX SPEEDSTER SWFT309 RADEON RX 6700 Gaming Graphics Card with 10GB GDDR6 HDMI 3xDP, AMD RDNA 2 RX-67XLKWFDV (Renewed)
The RX 6700 is the better pick for most buyers because it runs roughly 10-15% faster than the RX 6600 XT and adds 10 GB of VRAM and a full PCIe x16 link, while the RX 6600 XT makes sense only if it is clearly cheaper or the case needs its shorter card.
Both cards belong to AMD’s RDNA 2 family, but they sit on different chips. The RX 6600 XT uses the smaller Navi 23 die with a 128-bit bus, and the RX 6700 uses a cut-down Navi 22, the same chip as the RX 6700 XT, with a 160-bit bus. The RX 6700 arrived as a quiet, largely partner-only release, so it is less well known, which is part of why it can be a good used-market find.
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Spec Differences That Matter
| Spec | RX 6600 XT | RX 6700 |
|---|---|---|
| Architecture | RDNA 2.0 (7 nm) | RDNA 2.0 (7 nm) |
| Launch MSRP | $379 | No widely published MSRP |
| Stream processors | 2048 | 2304 |
| Boost clock | 2589 MHz | 2450 MHz |
| VRAM | 8 GB GDDR6 | 10 GB GDDR6 |
| Bus / bandwidth | 128-bit / 256.0 GB/s | 160-bit / 320.0 GB/s |
| Cache | 2 MB L2 + 32 MB L3 | 3 MB L2 + 80 MB L3 |
| TDP | 160 W | 175 W |
| Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |
| Power connectors | 1x 8-pin | 1x 8-pin |
| Length / width | 190 mm / 2-slot | 267 mm / 2-slot |
| Outputs | 1x HDMI, 2x DisplayPort | 1x HDMI 2.1, 2x DP 1.4a, 1x USB-C |
Three numbers stand out: the RX 6700 has 25% more memory bandwidth, 2.5 times as much Infinity Cache (80 MB versus 32 MB) and twice the PCIe lanes. Its boost clock is lower, but the bigger memory subsystem matters more as resolution rises.
Raster Performance at 1080p and 1440p
The RX 6700 did not receive the same broad launch coverage as the RX 6600 XT, so the best available picture comes from aggregated benchmark data and TechPowerUp’s relative performance charts, which place the RX 6700 a few percent below the RX 6700 XT. Aggregated game results show:
- 1080p: the RX 6700 roughly 10-13% faster.
- 1440p: roughly 10-15% faster, with the larger cache helping hold frame rates.
- 4K: roughly 12-15% faster, though neither card is a 4K card.
The RX 6600 XT was originally described by TechRadar as an excellent 1080p card, and that remains its natural home. As an illustration only, a game averaging about 70 fps at 1080p high on the RX 6600 XT might reach about 78-80 fps on the RX 6700; actual results depend on CPU, settings and driver version.
The PCIe x8 catch
The RX 6600 XT uses only eight PCIe lanes. On a PCIe 4.0 motherboard this is not a problem. On an older PCIe 3.0 platform, however, the card’s link bandwidth is halved, and in games that spill past 8 GB of VRAM the performance loss can grow noticeably. The RX 6700’s full x16 link avoids this, which makes it the safer upgrade for older Intel or AMD systems still on PCIe 3.0.
Ray Tracing and Upscaling
Both cards use first-generation RDNA 2 ray accelerators, with the RX 6700 having 36 against the RX 6600 XT’s 32. Ray tracing is technically possible on both, but in demanding titles it pushes frame rates well below 60 fps at 1080p unless upscaling is used heavily. Treat RT as an occasional extra rather than a reason to choose either.
Feature support is the same. Both use FSR 3.1 upscaling and frame generation in supported games, AMD Fluid Motion Frames at the driver level and Intel’s XeSS through its DP4a path. FSR 4 is aimed at the RX 9000 series, so neither card should be bought with FSR 4 in mind.
8 GB vs 10 GB: Does the Extra Memory Help?
In 2026, 8 GB is the floor for 1080p gaming. Several new releases already recommend reducing texture quality on 8 GB cards to avoid stutter, especially with ray tracing turned on. The RX 6700’s 10 GB is not a huge jump, but it buys a margin that often decides whether a game runs smoothly at high textures or needs to drop to medium.
- 1080p: 8 GB works with sensible texture settings; 10 GB gives more breathing room.
- 1440p: 10 GB is noticeably more comfortable than 8 GB in new games.
- 4K: neither card is a good fit.
Power, PSU and Case Fit
The power difference is small: 160 W for the RX 6600 XT and 175 W for the RX 6700. Both use a single 8-pin connector.
PSU sizing worked example
- RX 6600 XT: 160 W + 105 W (typical midrange CPU) + 150 W headroom = about 415 W, so a quality 500 W unit is plenty.
- RX 6700: 175 W + 105 W + 150 W = about 430 W, which also fits a quality 500-550 W unit.
Case fit is the clearer difference. The RX 6600 XT reference length is 190 mm, and many models are compact dual-fan designs suitable for small form factor builds. The RX 6700 is listed at 267 mm, which is typical of full-length cards and may not fit some mini-ITX cases. Checking the exact model’s length is important if space is tight.
Used Market and Value
The RX 6600 XT launched at $379; the RX 6700 never had a broadly advertised MSRP and was sold mostly through partners and system builders. In 2026 both are bought mainly used or as remaining new stock. The RX 6600 XT usually sells for about $150-$190 used, and the RX 6700 for about $180-$230.
Cost per frame worked example
Taking the midpoints, $170 for the RX 6600 XT at 100 performance points and $205 for the RX 6700 at about 112:
- RX 6600 XT: 100 / $170 = 0.588 points per dollar.
- RX 6700: 112 / $205 = 0.546 points per dollar.
The RX 6600 XT is slightly better value per frame at those prices, but the RX 6700’s extra VRAM and x16 link are worth more than the small value gap for anyone gaming at 1440p or on PCIe 3.0. If the prices are within about $20, the RX 6700 is the clear pick. Also worth noting: the current RX 9060 XT and Arc B580 offer newer features and warranties, and should be compared if the budget can stretch.
Decision Guide
| Your setup | Pick |
|---|---|
| 1080p, PCIe 4.0 board, tight budget | RX 6600 XT |
| 1080p, PCIe 3.0 board | RX 6700 |
| 1440p with new AAA games | RX 6700 |
| Small form factor case under ~250 mm GPU clearance | RX 6600 XT |
| Price gap under ~$20 | RX 6700 |
Upgrade Paths and Longevity
Anyone already owning an RX 6600 XT should not treat the RX 6700 as a meaningful upgrade; a 10-15% gain rarely justifies the cost and hassle of selling and rebuying. A worthwhile jump from an RX 6600 XT starts at roughly RX 6800 or RX 9060 XT 16 GB performance, where both the speed and the memory increase are substantial. For a fresh build, however, the RX 6700 is the card that will age more gracefully, because its 10 GB buffer and wider memory bus hold up better as new games raise texture and memory demands. Both cards still receive regular AMD driver updates, so software support is not a differentiator between them.
Frequently Asked Questions
Is the RX 6700 the same as the RX 6700 XT?
No. The RX 6700 uses the same Navi 22 chip but with fewer compute units, a narrower 160-bit bus and 10 GB of memory instead of 12 GB. It is a few percent slower than the RX 6700 XT. It still sits clearly above the RX 6600 XT.
Does the RX 6600 XT lose performance on PCIe 3.0?
Yes, in some games. The card runs on eight lanes, so on PCIe 3.0 it has half the link bandwidth it would have on PCIe 4.0. The loss is small in many titles but grows when a game exceeds the 8 GB of VRAM.
Can the RX 6700 run games at 1440p?
It handles 1440p well in most games at medium to high settings, with FSR helping in the most demanding new releases. Its 10 GB of VRAM and 80 MB Infinity Cache make it more comfortable at this resolution than the RX 6600 XT. Ray tracing at 1440p is generally not practical.
What power supply do I need for the RX 6700?
A quality 500-550 W power supply is enough for the RX 6700 paired with a typical midrange CPU. The card needs a single 8-pin PCIe connector. Factory-overclocked models may draw slightly more than the 175 W rating.
Which is better for small cases?
The RX 6600 XT is the easier fit, with a 190 mm reference length and many compact partner models. The RX 6700 is typically a full-length card around 267 mm. Measuring the GPU clearance before buying avoids returns.
Ready to decide? Our #1 pick for 2026 is the Architecture.
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