AMD Intros Radeon Pro W7700: Rounding Out RDNA 3 For Workstations

Although AMD doesn’t have any major HPC announcements for this year’s SC23 show, the company isn’t starting this week empty-handed. For the workstation market the company is introducing its latest (and likely final) Radeon Pro W7000 series card, the Radeon Pro W7700.

Based on AMD’s latest-generation RDNA 3 architecture, the W7700 slots in between the Navi 31-based Radeon Pro W7800 and the Navi 33-based Radeon Pro W7600. As the final member of the lineup, the Navi 32-based card is designed to split the difference between AMD’s high-end and low-end Radeon Pro cards, offering a more modest level of performance for a far more modest price tag. Priced at $999, AMD is looking to hit a sweet spot in terms of hitting the high-end workstation market, edging out more expensive NVIDIA cards with a combination of higher performance and lower pricing.

AMD Radeon RX 7000 Series Specification Comparison
  AMD Radeon Pro W7800 AMD Radeon Pro W7700 AMD Radeon Pro W7600 AMD Radeon Pro W5700
ALUs 8960
(70 CUs)
6144
(48 CUs)
4096
(32 CUs)
2304
(36 CUs)
ROPs 128 96 64 64
Boost Clock 2.5GHz ~2.3GHz 2.43GHz 1.9GHz
Peak Throughput (FP32) 45 TFLOPS 28.3 TFLOPS 19.9 TFLOPS 8.89 TFLOPS
Memory Clock 18 Gbps GDDR6 18 Gbps GDDR6 18 Gbps GDDR6 14 Gbps GDDR6
Memory Bus Width 256-bit 256-bit 128-bit 256-bit
VRAM 32GB 16GB 8GB 8GB
ECC Yes
(DRAM)
Yes
(DRAM)
No No
Infinity Cache 64MB 64MB 32MB N/A
Total Board Power 260W 190W 130W 205W
Manufacturing Process GCD: TSMC 5nm
MCD: TSMC 6nm
GCD: TSMC 5nm
MCD: TSMC 6nm
TSMC 6nm TSMC 7nm
Architecture RDNA3 RDNA3 RDNA3 RDNA (1)
GPU Navi 31 Navi 32 Navi 33 Navi 10
Launch Date Q2’2023 11/13/2023 Q3’2023 11/2019
Launch Price (MSRP) $2499 $999 $599 $799

Under the hood, the Radeon Pro W7700 looks a lot like a Radeon RX 7800XT that’s been dialed down to make a lighter TDP. We’re looking at a Navi 32 GCD with just 48 CUs enabled, and a more modest peak clockspeed of around 2.3GHz. The total rated throughput of the card is 28.3 TFLOPS FP32, trailing the more powerful (and more power-hungry) consumer cards a bit.

The Radeon Pro W7700 is paired with Navi 32’s full suite of Memory Cache Dies (MCD) however, giving it a better-than-usual ratio of FLOPS to memory bandwidth. With 16GB of GDDR6 attached to a 256-bit memory bus, the card offers 576GB/second of memory bandwidth – and ECC-protected memory, at that, a feature carried over from the high-end Radeon Pro models.

As noted earlier, AMD is aiming a bit more conservatively in terms of power consumption for this card, looking to offer something between the toasty 250W+ flagship cards, and the more petite 130W W7600. The end result is that AMD has set the TBP for the W7700 at 190W, allowing for the construction of an easily-cooled dual slot card.

In terms of features, as the fifth RDNA 3 video card in AMD’s Radeon Pro lineup, the W700 is on par with its peers. Like the flagship parts, we’re looking at a fairly performant version of AMD’s RDNA 3 architecture, with the company looking to leverage various optimizations and new features throughout the card to offer better performance, and for specific tasks, new features. The core architecture includes a significant update to the CUs to improve the total number of compute FLOPS attainable, as well as optimizations to improve the kind of dense matrix math used in AI inference calculations. As well, the ray tracing units have been updated to provide better performance and a larger overall ray rate.

RDNA 3’s marquee video feature of AV1 encoding support also makes it over to the card as well. The W7700 can encode a single AV1 stream at up to 8K60, a very useful feature as AV1 adoption increases – though it doesn’t get the more powerful dual media engine found on the flagship W7800/W7900’s cards.

Meanwhile, AMD’s ace in the hole on the display output side of matters is their support for DisplayPort 2.1 connectivity, something all of NVIDIA’s cards in this generation lack. Still, Pro users intending to take advantage of DP 2.1 will want to pay close attention to the specifications for AMD’s Radeon Pro lineup, as support is not consistent throughout the cards. Whereas the cheaper W7500/W7600 only have UHBR 10 data rate support, the W7700 gets faster UHBR 13.5 support for higher resolution/color depth displays. Still, this is a step down from the W7800/W7900, which can uniquely drive a max-bandwidth UHBR 20 display.

As for the physical W7700 card itself, it is a fairly typical-for-workstations dual slot blower design. AMD is using their standard DisplayPort configuration here, equipping the card with a quartet of full-sized DisplayPorts. In terms of length, the W7700 is a bit shorter than its W7800/W7900 counterparts, though AMD hasn’t sent over the exact dimensions for the card. And while not shown in any of AMD’s pictures, the card is fed additional power a single 8-pin PCIe power connector.

Wrapping things up, the Radeon Pro W7700 is getting a hard launch, and will be available today in stand-alone card form from the usual PC parts retailers at an MSRP of $999. Meanwhile, OEMs are expected to start shipping the card in their workstations beginning later this month.

Source

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