XFX Radeon RX 7900 XT SPEEDSTER MERC310 20GB GDDR6

The XFX RX 7900 XT MERC310 posts a 29,059 PassMark score, putting it in the 82nd percentile for rasterization. The 20GB of GDDR6 is a standout feature for 4K gaming. Just don't buy it for compute work, where it ranks in the 28th percentile.

Let's talk about that 29,059 PassMark score. In our database, that puts this XFX card in the 82nd percentile for rasterization, which means it outpunches roughly four out of five GPUs we've tested. For 4K gaming, our scoring model gives it a 73.3 out of 100, and 1440p comes in at 72.2. Those aren't chart-topping numbers, but they're solidly in the 'crank the settings and forget about it' zone for most titles. The 2535MHz boost clock and 96 RT cores keep ray tracing respectable, landing in the 79th percentile for RT performance.

The 20GB of GDDR6 is the quiet hero here. At the 81st percentile for VRAM, this card has more memory than most RTX 4080 variants and double what you'd get on a typical 5070 Ti. That matters for 4K texture packs and future-proofing. The 112 GB/s memory bandwidth figure looks odd on paper, but that's the spec sheet being weird, not the card. In practice, the 256-bit bus moves plenty of data. The one area where this card genuinely underwhelms is compute. The 2.611 FP32 TFLOPS number is just not competitive for workstation tasks, which is why our workstation score sits at a mediocre 53.1 out of 100.

Against the ASUS PRIME RTX 5080, this XFX card actually holds its own in rasterization, with the 29,059 PassMark score putting it surprisingly close to NVIDIA's newer mid-flagship. The RTX 5080 will win on ray tracing and compute, no question, but it also costs significantly more. The MSI Ventus RTX 5070 Ti is the more direct threat. It's newer, more efficient, and has better RT performance, but it only has 16GB of VRAM compared to this card's 20GB. For 4K gaming with heavy textures, that VRAM gap matters. The Sapphire NITRO+ 7900 XT is the same chip in a different cooler, so the choice there comes down to thermals and noise, where the Sapphire typically runs a bit cooler. The ZOTAC and Gigabyte RTX 5080 variants are in a different price bracket entirely, and unless you need CUDA or better ray tracing, this XFX card gives you most of the gaming performance for less money.

At $680 USD from the single US listing we found, this card is in a weird spot. The affordability ranking puts it in the 31st percentile, which means most GPUs in our database are cheaper. But most of those cheaper cards also can't touch a 29,059 PassMark score. The value equation here is about what you need. If you're gaming at 4K and want high settings without spending RTX 4090 money, the price per frame is genuinely good. If you're doing any kind of compute or workstation work, you're paying a lot for a card that ranks in the 28th percentile for that workload. The INR 234,846 and JPY 375,037 listings are harder to judge without local market context, but the MXN 25,499 price suggests this card carries a premium in most regions.

The XFX Radeon RX 7900 XT SPEEDSTER MERC310 posts a PassMark G3D score of 29,059, which lands it in the top tier of our GPU database for raw rasterization. That's the headline here. You're getting flagship-class 4K gaming performance without paying flagship RTX 4090 money, assuming you can find one at the $680 USD listing we spotted. The 20GB of GDDR6 on a 256-bit bus is a big deal too, sitting in the 81st percentile for VRAM capacity, which means this card won't choke on high-res texture packs anytime soon.

But it's not all sunshine. The compute score of 2.611 FP32 TFLOPS puts it in the 28th percentile for raw compute, which is weirdly low for a card with this much gaming muscle. And the efficiency ranking is dead average at the 52nd percentile. This is a card built to push frames, not to sip power or crunch scientific workloads. The triple fan MERC cooler does a decent job keeping thermals in the 73rd percentile, but you'll hear it working when the 315W TDP gets going.

Skip this card if you do any kind of compute-heavy work. The 2.611 FP32 TFLOPS number puts it in the 28th percentile for compute, which is genuinely bad for a card at this price. Our workstation score of 53.1 out of 100 confirms it. Also skip it if you have a smaller case, since the 343mm length and 2.17 slot width will rule out a lot of mid-tower builds. And if power efficiency matters to you, the 315W TDP and 52nd percentile efficiency ranking mean you'll be paying more on your electricity bill than you would with a newer NVIDIA card. The feature set is also thin, ranking in the 35th percentile, so if you want the latest upscaling tech or AV1 encoding tricks, this isn't the card for you.

The XFX Radeon RX 7900 XT SPEEDSTER MERC310 is a 4K gaming workhorse that punches above its price class in rasterization and VRAM capacity. The 29,059 PassMark score and 20GB of GDDR6 are the reasons to buy this card. The 28th percentile compute performance and 52nd percentile efficiency are the reasons to think twice. If you're a gamer who wants high settings at 4K without selling a kidney, this is one of the best options in our database right now. If you do any kind of rendering, AI work, or compute-heavy tasks, look elsewhere. The 315W TDP means you'll want a decent power supply, and the 343mm length means you'll want a big case. But for pure gaming value, this card delivers.