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MSI RTX 5090 Suprim SOC Review

Rating: 7.0.

Today we are back with our first RTX 50 series partner card review! We're looking at the MSI RTX 5090 Suprim SOC – a beast of a graphics card in every sense of the word. Not only does it boast a quad-slot cooler that's about 36cm long, but it's been aggressively factory overclocked, while also featuring dual-BIOS, three 100mm fans and plentiful RGB lighting. Let's see just how well it compares to Nvidia's Founders Edition.

Timestamps

00:00 Intro
00:44 The pricing situation
01:41 Design impressions
02:15 It’s HUGE – comparisons vs 5090 FE
02:57 Dual-BIOS, RGB lighting
04:09 Revealing the PCB and heatsink
05:33 Test setup
06:19 Thermals, noise
07:34 Game benchmarks
08:08 Clock speed + power
09:08 Overclocking
10:07 Closing thoughts – is it worth 2.6K?

Of course, the other factor to consider is pricing, and while MSI didn't actually disclose an official MSRP to us, we've found it on Currys for £2600, while it's higher still at OCUK. Needless to say, that is some extreme pricing, with a £660 price premium over the £1939 MSRP. It's hard to say if those are just inflated figures given there's zero stock of the RTX 5090 right now, and I'd have to hope that pricing falls as supply levels increase. Right now that's all we have to go on though, so that will have to factor into our final buying advice.

RTX 5090 RTX 5080 RTX 4090 RTX 4080 Super RTX 4080
Process TSMC N4 TSMC N4 TSMC N4 TSMC N4 TSMC N4
SMs 170 84 128 80 76
CUDA Cores 21760 10752 16384 10240 9728
Tensor Cores 680 336 512 320 304
RT Cores 170 84 128 80 76
Texture Units 680 336 512 320 304
ROPs 176 112 176 112 112
GPU Boost Clock 2407 MHz 2617 MHz 2520 MHz 2550 MHz 2505 MHz
Memory Data Rate 28 Gbps 30 Gbps 21 Gbps 23 Gbps 22.4 Gbps
L2 Cache 98304 KB 65536 KB 73729 KB 65536 KB 65536 KB
Total Video Memory 32GB GDDR7 16GB GDDR7 24GB GDDR6X 16GB GDDR6X 16GB GDDR6X
Memory Interface 512-bit 256-bit 384-bit 256-bit 256-bit
Memory Bandwidth 1792 GB/Sec 960 GB/Sec 1008 GB/Sec 736 GB/Sec 716.8 GB/Sec
TGP 575W 360W 450W 320W 320W

First, a quick spec recap. The RTX 5090 is built on the new GB202 die, measuring 750mm2, though it's not quite a full implementation of the silicon. Instead we find a total of 11 Graphics Processing Clusters (GPCs), each holding up to eight Texture Processing Clusters (TPCs), for a total of 85. Each TPC is home to two Streaming Multiprocessors (SMs), giving us 170, and each SM still holds 256 CUDA Cores, meaning the RTX 5090 has an eye-watering total of 21760 shaders. We also find 170 RT cores, 680 Tensor cores, 680 Texture Units, and 176 ROPs.

This time around, however, there's no node-shrink, and GB202 remains fabricated on TSMC's N4 node, as per the RTX 40-series. As such, rated clock speed is not increased this generation and is actually touted slightly below that of the RTX 4090, with the  reference RTX 5090 delivering a rated 2407MHz boost clock. MSI has increased this to 2565MHz for the Gaming BIOS, and 2512MHz for the Silent BIOS.

The memory configuration has seen significant upgrades this generation. The RTX 5090 now comes equipped with a super-wide 512-bit memory interface, paired with 32GB GDDR7 memory running at 28Gbps, and that puts total memory bandwidth at a staggering 1792 GB/s. L2 cache is also increased to 98MB, up from the 74MB of the RTX 4090.

Considering the large increases to die size and core count, but with no node shrink, it's perhaps unsurprising to see power draw has increased, this time boasting a 575W TGP at reference. MSI has maxed this out at 600W for the Gaming BIOS, too, the limit of the 12V-2X6 connector.

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