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Home » PC Components » Graphics Card » AMD Radeon RX 7900 XTX vs. NVIDIA GeForce RTX 4090 – Features, Specs, and Price Comparison

AMD Radeon RX 7900 XTX vs. NVIDIA GeForce RTX 4090 – Features, Specs, and Price Comparison

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AMD recently announced its latest GPUs based on the new RDNA 3 architecture, the Radeon RX 7900 XTX 24G and Radeon RX 7900 XT 20G. Both graphics cards will be available starting December 13, 2022, with retail prices of $999 and $899, respectively. In this article, let’s quickly compare AMD’s latest RX 7900 series GPUs to NVIDIA’s RTX 4090 and RTX 4080. The RTX 4090 is already available, and we know how fast this GPU is. Meanwhile, the RTX 4080 will be available starting November 16. For now, let’s compare their features, specs, and prices. The performance will have to follow once the RX 7900 series GPUs are released.

amd rx 7900 xtx vs nvidia rtx 4090

UPDATE: Just a minor update here. AMD confirmed that the Radeon RX 7900 XTX is not an RTX 4090 competitor. But the new Radeon GPUs will be an RTX 4080 competitor instead.

AMD Radeon RX 7000 vs. NVIDIA GeForce RTX 40 Series – Who Will Win?

AMD is implementing a new chiplet design, similar to what they are doing on their Ryzen processors. This time, the GCD or Graphics Compute Die sits between six Memory Cache Die (MCD) (three on each side). The GCD is a 5nm chip, while the MCDs are 6nm. This approach helped AMD to deliver up to 15% higher frequencies while achieving up to 54% better power efficiency.

Not only that, but this also helped AMD reduce the cost of its GPUs. Unlike NVIDIA’s RTX 40 series GPUs that use the more expensive TSMC 4N fab process, AMD was able to save some cost by using 5nm and 6nm chips.

AMD RDNA 3 RX 7000 Chiplets

GPU Core and Memory

As mentioned, NVIDIA’s RTX 4090 uses TSMC’s 4N, which is a custom 5nm fab process, with an AD102 GPU at its core. Although not directly comparable, the Radeon RX 7900 XTX has 12,288 streaming processors, while the RX 7900 XT has 10,752. Meanwhile, NVIDIA’s RTX 4090 has 16,384 CUDA cores, and the RTX 4080 will have 9,728 CUDA cores.

NVIDIA uses a much faster GDDR6X memory on the RTX 4090 and 4080. AMD is still using GDDR6 for both graphics cards. The RX 7900 XTX has the same memory size as the RTX 4090, which is 24GB. However, the RX 7900 XT has 20GB of memory capacity while the RTX 4080 only has 16GB, but it’s a faster GDDR6X memory.

When it comes to clock speed, unfortunately, there are no GPUs that reach 3GHz frequency in this generation. Maybe, we may see faster-clocked GPUs in the next generation.

See also: NVIDIA GeForce RTX 4090 vs RTX 3090 Ti.

Connectors and Power Efficiency

Regarding power and efficiency, the Radeon RX 7900 XTX and XT have a total board power of 355W and 300W, respectively. Those numbers are lower than the RTX 4090’s and RTX 4080’s TGP. AMD didn’t jump into the 12VHPWR 16-pin PCIe power connector bandwagon that NVIDIA is currently using. Instead, they stick with the good-old 8-pin PCIe power connectors.

AMD looks more efficient on paper than NVIDIA’s RTX 40 series graphics cards. However, we’ll have to wait for 3rd party testing and review to validate this.

amd rx 7900 xtx size and power connector

While AMD opted not to use the new 16-pin PCIe power connector, AMD opted for DisplayPort 2.1. This was actually one of AMD’s highlights during the presentation. NVIDIA’s RTX 40 series graphics card doesn’t use the faster DisplayPort 2.1 interface, only DP1.4a. The DisplayPort 2.1 should offer more bandwidth and will be helpful when the new 8K monitors are released next year.

However, I don’t think people will buy the RX 7900 XTX for 8K gaming. Most gamers today are still using 1080p or 1440p monitors. 4K isn’t even the “default” resolution used by gamers. Anyway, whether there is an advantage to having DisplayPort 2.1 connectivity on the graphics card or not remains to be seen once it’s out and the new monitors are released.

AMD Radeon RX 7900 Series vs. NVIDIA GeForce RTX 4090/4080 Specs Comparison

 NVIDIA RTX 4090NVIDIA RTX 4080 16GBAMD RX 7900 XTXAMD RX 7900 XT
Manufacturing ProcessTSMC 4N (5nm)TSMC 4N (5nm)GCD: TSMC 5nm
MCD: TSMC 6nm
GCD: TSMC 5nm
MCD: TSMC 6nm
Transistor Count76.3B45.9B58B58B less (1 MCD)
ArchitectureAda LovelaceAda LovelaceRDNA3RDNA3
GPUAD102AD103Navi 31Navi 31
CUDA Cores / Stream Processors1638497281228810752
Boost Clock2.52 GHz2.51 GHz2500 MHz2400 MHz
Base Clock2.23 GHz2.21 GHz2300 MHz2000 MHz
Memory Size24 GB GDDR6X16 GB GDDR6X24GB GDDR620GB GDDR6
Memory Interface384-bit256-bit384-bit320-bit
Memory Speed21 Gbps23 Gbps20 Gbps20 Gbps
Upscaling TechDLSS 3DLSS 3FSR 3 / 2.2FSR 3 / 2.2
Graphics Card Power450W320W355W300W
Required PSU850W750W750W700W
Release DateOctober 2022November 2022December 2022December 2022
Launch Price$1,599 $1,199 $999$899

Check the latest pricing and availability: (#ad)
GeForce RTX 4090 Graphics Cards are available on Amazon.com here.

Gaming Performance

AMD shared very little information about the performance of their new GPUs. Generally speaking, the AMD Radeon RX 7900 XTX is around 1.5x to 1.7x faster than the previous generation RX 6950 XT at 4K. AMD didn’t include or even mention NVIDIA during the presentation.

AMD RX 7900 XTX vs RX 6950 XT Performance

However, if we take AMD’s word, the Radeon RX 7900 XTX could be just a few percent slower than the RTX 4090 while costing $600 less. Well, in today’s market, the RTX 4090 graphics cards sell for around $2,000, give or take.

Linus Tech Tips shared an estimated performance of the RX 7900 XTX based on their gathered data. And so far, it looks good in gaming using traditional rasterization only.

Source: LTT – Goodbye NVIDIA. – AMD RDNA3 Announcement

No Performance Preview for the RX 7900 XT?

AMD didn’t share any sneak preview of its Radeon RX 7900 XT’s performance. All the performance slides shown were about the RX 7900 XTX. Is AMD waiting for NVIDIA’s RTX 4080’s performance?

NVIDIA will release the RTX 4080 on November 16. So, reviews will go live that day or perhaps a day before. Even if the RX 7900 XT is not as fast as the RTX 4080, as long as it’s cheaper and offers a better cost per frame, I think it’s still a win for the RX 7900 XT.

Based on the initial information AMD shared during the presentation, I don’t think AMD’s RX 7000 GPUs will be the performance king in this generation. But they may be the better value. I hope retailers won’t jack up the prices when they see the performance of these GPUs.

Check the latest pricing and availability: (#ad)
GeForce RTX 4090 Graphics Cards are available on Amazon.com here.

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A PC enthusiast and a gamer, and my eyes eat frames for breakfast, I guess. ¯\_(ツ)_/¯

2 thoughts on “AMD Radeon RX 7900 XTX vs. NVIDIA GeForce RTX 4090 – Features, Specs, and Price Comparison”

    • Thanks for the info! Appreciate it!
      Ahh it was the “N4” which is 4nm. These naming scheme can be confusing, just like Intel’s 7, but not actually 7nm.

      Reply

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