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Inno3D RTX 4070 Ti iChill X3 Review

Rating: 8.0.

Following on from our full review of the RTX 4070 Ti, we are already back with a look at another AIB model. Enter the Inno3D RTX 4070 iChill X3, offering a 60MHz factory overclock, 320W power limit and triple-fan cooler. Could this be one to add to your shortlists if you are in the market for a new graphics card?

If you haven't already read or watched our full RTX 4070 Ti review, I'd recommend doing so to get an idea of exactly how this new GPU stacks up in the wider context of the 40-series and RDNA 3 competitors. This review is more focused on the Inno3D RTX 4070 Ti iChill X3 itself, as we look at the design, thermals, acoustics, overclocking and more.

RTX 4090 RTX 4080 RTX 4070 Ti RTX 3080 Ti RTX 3080 RTX 3070 Ti
Process TSMC N4 TSMC N4 TSMC N4 Samsung 8N Samsung 8N Samsung 8N
SMs 128 76 60 80 68 48
CUDA Cores 16384 9728 7680 10240 8704 6144
Tensor Cores 512 304 240 320 272 192
RT Cores 128 76 60 80 68 48
Texture Units 512 304 240 320 272 192
ROPs 176 112 80 112 96 96
GPU Boost Clock 2520 MHz 2505 MHz 2610 MHz 1665 MHz 1710 MHz 1770 MHz
Memory Data Rate 21 Gbps 22.4 Gbps 21 Gbps 19 Gbps 19 Gbps 19 Gbps
L2 Cache 73729 KB 65536 KB 49152 KB 6144 KB 6144 KB 4096 KB
Memory Interface 384-bit 256-bit 192-bit 384-bit 320-bit 256-bit
Memory Bandwidth 1008 GB/Sec 716.8 GB/Sec 504 GB/Sec 912 GB/Sec 760 GB/Sec 608 GB/Sec
TGP 450W 320W 285W 350W 320W 290W

First, for a quick spec recap. We already mentioned that RTX 4070 Ti uses the AD104 die, measuring 295mm2. Accordingly, transistor count is reduced to 35.8 billion, down from 45.9 billion with AD103. The fundamental building blocks are still the same of course, with the RTX 4070 Ti offering a total of 60 Streaming Multiprocessors (SMs), each housing 256 CUDA Cores, for a total of 7680. We also find 60 RT cores, 240 Tensor cores, 240 Texture Units, and 80 ROPs.

TSMC's N4 node has Nvidia cranking up the clock speed significantly this generation, with the RTX 4070 Ti sporting a 2610MHz rated boost clock. Inno3D has increased this further, with a 60MHz factory overclock, bringing speeds up to 2670MHz.

The memory configuration is another area where AD104 has been cut-back significantly. The memory interface has been reduced to 192-bit, and even with 12GB GDDR6X running at 21Gbps, that brings total memory bandwidth down to 504 GB/s, lower than even the RTX 3070 Ti. That said, there has been a substantial upgrade to the L2 cache with the Ada architecture, with the RTX 4070 Ti now offering 49MB, compared to just 6MB for GA102.

Considering these cut-backs, power draw is naturally lower than the RTX 4080, with the 4070 Ti boasting a reference 285W TGP. Inno3D has also increased this, up to 320W.

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