Palit RTX 4080 Super JetStream OC Review

1. Introduction2. Palit RTX 4080 Super JetStream OC3. Testing Methodology4. Game Benchmarks5. Clock Speed6. GPU Temperatures7. Memory Temperatures8. Acoustics9. Noise-Normalised Temperatures10. Power Draw and Efficiency11. Overclocking12. Closing Thoughts13. View All Pages

Alongside our launch day review of the new Nvidia RTX 4080 Super Founders Edition, we also have a couple of partner cards in for testing. The Palit JetStream OC is one such model, featuring a stealthy matte black design, triple-fan cooler and factory overclocked core. Clearly designed to deliver a ‘no frills' experience, this GPU is targeting the £959 MSRP, so let's find out what it can bring to the table.

We've only just taken a look at Palit's RTX 4070 Super JetStream OC, and the RTX 4080 Super JetStream OC carries on in the same vein, eschewing extra bells and whistles like RGB lighting and Dual-BIOS in favour of a simpler approach. That helps it hit the £959 MSRP, but let's put it through its paces and find out just how it performs.

	RTX 4090	RTX 4080 Super	RTX 4080	RTX 4070 Ti Super	RTX 4070 Ti
Process	TSMC N4	TSMC N4	TSMC N4	TSMC N4	TSMC N4
SMs	128	80	76	66	60
CUDA Cores	16384	10240	9728	8448	7680
Tensor Cores	512	320	304	264	240
RT Cores	128	80	76	66	60
Texture Units	512	320	304	264	240
ROPs	176	112	112	96	80
GPU Boost Clock	2520 MHz	2550 MHz	2505 MHz	2610 MHz	2610 MHz
Memory Data Rate	21 Gbps	23 Gbps	22.4 Gbps	21 Gbps	21 Gbps
L2 Cache	73729 KB	65536 KB	65536 KB	49152 KB	49152 KB
Total Video Memory	24GB GDDR6X	16GB GDDR6X	16GB GDDR6X	16GB GDDR6X	12GB GDDR6X
Memory Interface	384-bit	256-bit	256-bit	256-bit	192-bit
Memory Bandwidth	1008 GB/Sec	736 GB/Sec	716.8 GB/Sec	672 GB/Sec	504 GB/Sec
TGP	450W	320W	320W	285W	285W

First, a quick spec recap. Unlike the RTX 4080 and RTX 4070 Ti which use cut-down versions of the AD103 GPU, the new 4080 Super is a full implementation of AD103 silicon, with the die measuring in at 379mm². This means the RTX 4080 Super offers a total of 80 Streaming Multiprocessors (SMs), each housing 256 CUDA Cores, for a total of 10240. We also find 80 RT cores, 320 Tensor cores, 320 Texture Units, and 12 ROPs.

TSMC's N4 node has Nvidia cranking up the clock speed significantly this generation, with the RTX 4080 Super sporting a 2550MHz rated boost. That's 45MHz faster than the rated clock speed of the RTX 4080, though Palit has added an extra 25MHz on top.

The memory configuration is almost identical to the RTX 4080, too. The 4080 Super comes equipped with a 256-bit memory interface, paired with 16GB GDDR6X running at 23Gbps, putting total memory bandwidth at 736 GB/s. L2 cache remains unchanged at 65536KB.

Considering the slightly increased core-count, it's interesting that power draw remains the same as the RTX 4080, with the new Super model still boasting a 320W TGP. This is something we focus on closely in this review, using our enhanced GPU power testing methodology, so read on for our most detailed power and efficiency testing yet.

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