Palit RTX 3090 GameRock OC Review

Source: KitGuru added 21st Jan 2021

  • palit-rtx-3090-gamerock-oc-review

While the latest rumours suggest the RTX 3080 Ti has been delayed ‘indefinitely’, RTX 3090 remains the go-to option for those demanding the fastest consumer GPU currently on the market. The fact RTX 3090s are so expensive also means there is actually some stock – if you are prepared to shell out £1889 for the Palit RTX 3090 GameRock OC we are looking at today.

On paper, there’s a lot to like about Palit’s RTX 3090 GameRock OC. For starters, it has dual-BIOS functionality baked in, offering users a performance mode and a silent mode. The latter raises the power target to 420W (!), which is a 70W increase over stock, while also pushing the rated boost clock up to 1845MHz, another sizeable boost compared to the RTX 3090’s stock specifications.

And then there’s the RGB. There’s no trying to hide it with this card, the GameRock OC is the most blinged-out graphics card, in terms of RGB lighting, that I have ever seen. If you don’t like RGB, then be warned – this is not the card for you. If you are an RGB lover though, there’s no denying that the GameRock OC is pretty special in that regard.

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

RTX 3090 uses the GA102 GPU, which also forms the basis for RTX 3080. Even with its 82 SMs, however, this is not actually a full implementation of GA102, as a fully populated die houses 84 SMs, so just two are missing from the RTX 3090. Ampere has doubled the number of FP32 shaders per SM, so there’s a total of 128 CUDA Cores in each of those 82 SMs, for a grand total of 10496.

Each SM also houses a single RT Core, as well as four Tensor cores, giving us 328 with the RTX 3090. Additionally, there’s 328 texture units and 112 ROPs.

As for the memory, this is a significant step up from the RTX 3080. RTX 3090 of course still uses GDDR6X memory, but it has over double the amount with 24GB. Additionally, the modules are clocked slightly faster at 19.5Gbps, and the memory interface is also slightly wider than RTX 3080, with a 384-bit interface. Total memory bandwidth comes in just shy of 1TB/s, hitting 936 GB/s.

Finally, we can see Palit has pushed the clock speed slightly further than reference. RTX 3090 defaults to a boost clock of 1695MHz, but Palit has added an extra 150MHz to this figure, bringing it up to 1845MHz. Later in the review we test exactly how fast the GPU actually operates, as we would expect GPU Boost to bring clock speed well above the rated speed.

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brands: Boost  Core  Dual  It  Palit  RGB  RTX  
media: KitGuru  
keywords: Memory  Review  

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