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Gigabyte RTX 3080 Eagle OC Review

Rating: 9.0.

Just twenty four hours have passed since RTX 3080 reviews went live, but we are already back for more. That's because it is now the turn of Nvidia's partners to strut their stuff, with this review focusing on Gigabyte's RTX 3080 Eagle OC. Eagle is a new product series for Gigabyte, replacing the company's entry-level WindForce family, and it'll be particularly interesting to assess this model as it is priced at Nvidia's MSRP, £649 here in the UK. Has the Eagle landed, or is it yet to take off? Let's find out.

On the face of it, the Gigabyte RTX 3080 Eagle OC appears to tick all the boxes for a third-party graphics card. It has a large, triple-fan cooler, factory overclocked core, RGB lighting, full length metal backplate, and tweaked power delivery compared to a reference board. Considering it is coming in at that £649 MSRP, then, it certainly sounds impressive on paper.

In this review, we put the Eagle through its paces to see just how good it is, and whether or not it is worth your hard-earned cash.

GPU RTX 3090 RTX 3080 RTX 2080 Ti (FE) RTX 2080 SUPER RTX 2080 (FE)
SMs 82 68 68 48 46
CUDA Cores 10496 8704 4352 3072 2944
Tensor Cores 328 272 544 384 368
RT Cores 82 68 68 48 46
Texture Units 328 272 272 192 184
ROPs 112 96 88 64 64
GPU Boost Clock 1695 MHz 1710 MHz 1635 MHz 1815 MHz 1800 MHz
Memory Data Rate 19.5 Gbps 19 Gbps 14 Gbps 15.5 Gbps 14 Gbps
Total Video Memory 24GB GDDR6X 10GB GDDR6X 11GB GDDR6 8GB GDDR6 8GB GDDR6
Memory Interface 384-bit 320-bit 352-bit 256-bit 256-bit
Memory Bandwidth 936 GB/Sec 760 GB/Sec 616 GB/sec 496.1 GB/sec 448 GB/sec
TGP 350W 320W 260W 250W 225W

Just before diving into the details, it's worth reminding ourselves of the key specs for the RTX 3080. Built on Nvidia's GA102 GPU, fabricated on Samsung's 8nm process, RTX 3080 houses 8704 CUDA cores, 68 RT Cores and 272 Tensor cores.

A reference board would come clocked at 1710MHz, but this is the Eagle OC, and accordingly this card has a rated boost of 1755MHz. We do, of course, expect GPU Boost to bring actual frequency well above those levels, but we will look at that later in the review.

The 10GB VRAM is provided thanks to Micron's new GDDR6X memory. Operating at 19Gbps, over a 320-bit bus this gives total memory bandwidth of 760GB/s.

All of those cores, fast memory and factory overclock come at a cost, however, and that is power draw. Reference TGP for a RTX 3080 is 320W, but Gigabyte has bumped this up to 340W, making it one of the most power-hungry GPUs I have ever tested.

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