Inno3D RTX 4070 Super Twin X2 Review

1. Introduction2. Meet the Inno3D RTX 4070 Super Twin X23. Testing Methodology4. Game Benchmarks5. Clock Speed6. GPU Temperatures7. Memory Temperatures8. Acoustics9. Noise-Normalised Temperatures10. Power Draw and Efficiency11. Overclocking12. Closing Thoughts13. View All Pages

Today we're back with another look at Nvidia's RTX 4070 Super, perhaps the most well-received of the three 40-series Super refreshes that launched at the start of the year. Specifically we are reviewing the Inno3D Twin X2 model, a compact graphics card that aims to deliver a ‘no frills' experience, targeting those who want a quiet and cool-running GPU without added bells and whistles to drive up the price.

You could say that the Inno3D RTX 4070 Super Twin X2 is most notable for the features it lacks, rather than what it offers – there's no RGB for instance, no dual-BIOS, no factory overclock or even the ability to raise the power limit beyond stock figures. Instead, it is very much a ‘throwback' graphics card, prioritising low noise and temperatures while retaining a compact footprint. Coming in at £589.99 here in the UK it is one of the cheapest 4070 Supers on offer, so let's see how it performs.

	RTX 4080	RTX 4070 Ti Super	RTX 4070 Ti	RTX 4070 Super	RTX 4070
Process	TSMC N4	TSMC N4	TSMC N4	TSMC N4	TSMC N4
SMs	76	66	60	56	46
CUDA Cores	9728	8448	7680	7168	5888
Tensor Cores	304	264	240	224	184
RT Cores	76	66	60	56	46
Texture Units	304	264	240	224	184
ROPs	112	96	80	80	64
GPU Boost Clock	2505 MHz	2610 MHz	2610 MHz	2475 MHz	2475 MHz
Memory Data Rate	22.4 Gbps	21 Gbps	21 Gbps	21 Gbps	21 Gbps
L2 Cache	65536 KB	49152 KB	49152 KB	36864 KB	36864 KB
Total Video Memory	16GB GDDR6X	16GB GDDR6X	12GB GDDR6X	12GB GDDR6X	12GB GDDR6X
Memory Interface	256-bit	256-bit	192-bit	192-bit	192-bit
Memory Bandwidth	716.8 GB/Sec	672 GB/Sec	504 GB/Sec	504 GB/Sec	504 GB/Sec
TGP	320W	285W	285W	220W	200W

First, a quick spec recap. Just like the RTX 4070 Ti and RTX 4070, the new 4070 Super uses a cut-down AD104 die, measuring 295mm². The fundamental building blocks are still the same of course, with the RTX 4070 Super offering a total of 56 Streaming Multiprocessors (SMs), each housing 256 CUDA Cores, for a total of 7168. We also find 56 RT cores, 224 Tensor cores, 224 Texture Units, and 80 ROPs.

TSMC's N4 node has Nvidia cranking up the clock speed significantly this generation, with the RTX 4070 Super sporting the same 2475MHz rated boost clock as the original model. Inno3D's Twin X2 model we are reviewing does not come factory overclocked.

The memory configuration also remains the same as both the 4070 and 4070 Ti. That means a relatively narrow 192-bit memory interface, so even with 12GB GDDR6X running at 21Gbps, total memory bandwidth comes in at 504 GB/s, lower than the RTX 3070 Ti. That said, there has been a substantial upgrade to the L2 cache with the Ada architecture, with the RTX 4070 now offering 49.1MB, compared to just 6MB for GA102.

Considering the increased core-count, power draw is naturally a touch higher than the RTX 4070, with the 4070 Super boasting a 220W TGP. Inno3D has not increased this out of the box for the Twin X2, and the power limit cannot be manually increased beyond 220W.

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