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At the same price and in similar condition, choose the XFX Speedster MERC 319. Its advertised clocks are higher, it uses two 8-pin power connectors instead of three, and the MERC 319 cooler has the stronger reputation. Choose the ASRock Phantom Gaming if it is substantially cheaper, better cared for, or its 330 mm length fits your case where the XFX’s 340 mm does not. Both are large, power-hungry RX 6950 XT cards, so check your case and power supply before buying either.
They are the same GPU, with different board designs
The XFX Speedster MERC 319 Black (model RX-695XATBD9) and ASRock RX 6950 XT Phantom Gaming 16GB OC (RX6950XT PG 16GO) use the same AMD Radeon RX 6950 XT GPU: 80 compute units, 5,120 stream processors, and 16GB of GDDR6 on a 256-bit bus. The board partner changes the cooler, factory clock settings, dimensions, and power connections; it does not turn one into a fundamentally different graphics processor.
That makes this a practical buying decision more than a performance showdown. Prioritize price, condition, warranty or returns, power-supply cabling, and case fit. Make sure a listing is for the exact 6950 XT model: ASRock uses “Phantom Gaming” across several GPUs, and XFX sells other MERC 319 variants.
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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsSpecifications at a glance
| Specification | XFX Speedster MERC 319 Black | ASRock Phantom Gaming 16GB OC |
|---|---|---|
| Model | RX-695XATBD9 | RX6950XT PG 16GO |
| GPU and memory | RX 6950 XT; 16GB GDDR6; 256-bit | RX 6950 XT; 16GB GDDR6; 256-bit |
| Base clock | Up to 2,009 MHz | 1,958 MHz |
| Game clock | Up to 2,162 MHz | 2,116 MHz |
| Boost clock | Up to 2,368 MHz | Up to 2,324 MHz |
| Power connections | 2 × 8-pin | 3 × 8-pin |
| Manufacturer PSU guidance | 850 W minimum | 900 W recommended |
| Dimensions | 340 × 139 × 57 mm | 330 × 140 × 56 mm |
| Cooling / width | Triple fan; triple-slot | Phantom Gaming 3X, triple fan; approximately 2.8-slot |
| Outputs | 3 × DisplayPort 1.4; 1 × HDMI 2.1 | 3 × DisplayPort 1.4; 1 × HDMI 2.1 |
Specifications are from the manufacturers’ pages for the XFX card and ASRock card. Clock figures are not guaranteed sustained gaming speeds: XFX describes boost as a maximum achievable frequency, and actual results depend on workload and thermal conditions.
#1 Best Overall
- Video Memory: 16GB GDDR6.Microsoft Windows 10 Support :Comprehensive OS supports the latest Windows10 functionality and Driver support. Memory Interface: 256-bit. Bus Standard :PCIE 4.0x16.Extension Power Connector : Three 8-pin PCI Express Power connectors.DirectX Support : 12. Stream Processor : 5120 Units.
- Stream Processor: 5120
- Game Clock: 2226 MHz (OC) / 2116 MHz (Silent)
- Boost Clock: 2435 MHz (OC) / 2324 MHz (Silent)
- Memory Clock: 18.0 Gbps
Gaming performance: the clock gap is not a reason to pay much more
The XFX has higher advertised clocks, so it may be a little faster under some conditions. But both cards use the same RX 6950 XT GPU and memory configuration, and factory overclocks of this scale usually mean a small real-world difference rather than a new performance tier. Do not pay a substantial premium for the XFX expecting a large frame-rate jump.
A comparison site reports small XFX leads in selected game results, but its test methods and conditions are not sufficiently documented to treat those figures as a controlled head-to-head result. Treat them as orientation, not a promise. Game, resolution, driver, cooling, power limits, and CPU can all affect results. At 1080p, a fast CPU and high-refresh target matter; at 1440p, either card can be a strong rasterization option; at 4K, results depend heavily on the game, settings, upscaling, and frame-rate target.
Rank #2
- Chipset: AMD RX 9070 XT
- XFX MERC Magnetic Air Triple Fan Cooling Solution and RGB
- Memory: 16 GB GDDR6
- Boost Clock Up to 3100 MHz
Both retain the RX 6950 XT’s strengths and limitations. They offer 16GB of VRAM and strong conventional rendering performance, but neither board partner changes the GPU’s ray-tracing capability, power demands, or underlying feature set. If ray-tracing performance, efficiency, newer upscaling or frame-generation features, or a fresh retail warranty are priorities, compare newer cards at the actual prices available to you.
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Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Cooling and noise: XFX is the safer default, not a guaranteed temperature winner
The triple-fan MERC 319 design has a favorable enthusiast reputation. Supporting discussion points to testing of the related XFX MERC 319 RX 6800 XT cooler, including strong performance after accounting for noise; that is useful context, but it is not a direct controlled test of these exact RX 6950 XT models. ASRock’s Phantom Gaming 3X is also a substantial triple-fan cooler, with a metal frame, backplate, and 0dB silent cooling mode. Those features do not prove it is quieter or cooler than the XFX in every build.
Rank #3
- Chipset: AMD RX 9070 XT
- Memory: 16 GB GDDR6
- XFX SWFT Triple Fan Cooling Solution
- Boost Clock Up to 2970 MHz
Case airflow, ambient temperature, fan curves, BIOS settings, dust, mounting orientation, and card condition all affect temperatures and noise. On a used card, check both the reported GPU temperature and the junction (hotspot) temperature during a sustained load. Listen for fan rattling and coil whine, and check whether fans behave normally at idle and under load. Do not treat branding or a brief idle reading as proof of good cooling.
Check power supply and cabling before choosing
The XFX uses two 8-pin PCIe power connectors and lists an 850 W minimum PSU; ASRock uses three 8-pin connectors and recommends a 900 W PSU. Those are manufacturer recommendations, not a guarantee that any power supply with that label will suit every system. PSU quality and age, CPU draw, and overclocking matter too.
Rank #4
- Supported Technologies: AMD Software: Adrenalin Edition, AMD FidelityFX Super Resolution, AMD Link, AMD Noise Suppression, AMD Radeon Super Resolution, AMD Smart Access Memory, VSR(4K), AMD Privacy View, AMD Radeon Boost, AMD Radeon Anti-Lag, AMD Radeon Image Sharpening, AMD Enhanced Sync Technology, AMD FreeSync Technology, AMD Radeon Chill, TrueAudio Next, The Vulkan API, AMD Mantle API
- Core and Clocks: Boost Clock up to 2310 MHz, Memory Size 16GB, Memory Type GDDR6, Memory Bus 256-bit, Memory Speed up to 18 Gbps
- Supported Rendering Format: HDMI 4K Support, 4K H264 Decode, 4K H264 Encode, H265/HEVC Decode, H265/HEVC Encode, AV1 Decode
- Minimum PSU Recommendation: 850W
- Confirm that the PSU has the required native PCIe connectors. The ASRock’s third connector can rule it out in a system with only two available leads.
- Use separate PCIe power cables from the PSU where possible. Do not rely on questionable adapters or splitters just to make a card fit your wiring.
- Consider a quality 850–1000 W unit for a high-end system, with more headroom if the CPU draws heavily or you plan to overclock. Choose for the complete system, not wattage printed on the box alone.
- Remember that two connectors do not make the XFX a low-power GPU: the RX 6950 XT remains demanding.
Measure the case, not just the product listing
ASRock’s card is about 10 mm shorter than the XFX: 330 mm versus 340 mm. Both are nearly three-slot cards, and the XFX is listed as 57 mm thick versus ASRock’s 56 mm. The shorter ASRock may fit a tight front-to-back space, but a 330 mm nominal clearance is not enough if a front radiator or fan occupies part of it.
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Before ordering, check the case’s usable GPU length with its front hardware installed, clearance for the power-cable bend at the side panel, occupied neighboring slots, and possible conflicts with M.2 drives or other expansion cards. These cards are heavy; make sure the primary PCIe slot and case can support one, and consider a support bracket. Neither is a sensible impulse purchase for a small or tightly packed case.
Best Value
- Chipset: AMD RX 9060 XT
- Memory: 16 GB GDDR6
- XFX SWFT Dual Fan Cooling Solution
- Boost Clock Up to 3320 MHz
Buying used: the individual card matters more than the logo
These are previous-generation cards that may be found as new-old-stock or used listings. For a used card, a tested, returnable ASRock in good condition is a better buy than a questionable XFX. Ask for photos of the actual card and label, and verify the exact model and serial number. Check that the fans, heatsink, backplate, and power connectors look intact and that the card has not been modified or disassembled without explanation.
Prefer a seller who can provide results from a sustained gaming or benchmark load, including GPU and hotspot temperatures, fan behavior, and evidence that the display outputs work. Ask about repairs, repasting, mining or other heavy use, and coil whine. Check whether any warranty remains and whether it transfers in your region; ASRock notes that availability can vary by market, so confirm terms with the local dealer or manufacturer rather than assuming a universal warranty.
Return protection and a credible seller are worth more than a modest factory-clock advantage when the card’s history is uncertain. Compare the full price after shipping, taxes, and any risk or warranty differences. Observed listings are only snapshots, not reliable market averages: do not infer that one model is inherently worth more from a couple of asking prices.
Which one should you buy?
- Same price and similar condition: XFX MERC 319, provided your case fits it and your PSU has suitable connections.
- XFX costs only a little more: The XFX remains the more attractive default if fit and cabling are not concerns; do not stretch your budget for a large premium based on clocks alone.
- ASRock is meaningfully cheaper—roughly $40–$60 less—or in better condition: Consider the ASRock, especially if its shorter length solves a clearance issue. Factor in its third power connector and PSU recommendation.
- One listing has testing, warranty, or returns and the other does not: Favor the lower-risk card, regardless of brand.
- Your case or PSU is marginal: Do not force either fit with improvised cabling. Recheck compatibility or consider a different GPU.
For most buyers comparing like-for-like listings, the XFX is the easier recommendation; the ASRock becomes compelling when its condition, price, or fit is clearly better. The exact model pages are the best source for manufacturer specifications: XFX MERC 319 and ASRock Phantom Gaming.
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