Over the second-half of this yr, AMD has been gearing as much as cascade their newest Radeon graphics structure to successively cheaper and extra mainstream merchandise. Final month we noticed the announcement of the mid-tier Radeon RX 5500 and RX 5500M sequence for desktop and cell respectively. And now this morning the corporate is including a 3rd tier of Radeon cell discrete graphics to their lineup, with the addition of the Radeon RX 5300M sequence.

Revealed alongside at this time’s 16-inch MacBook Professional announcement – with Apple as soon as once more getting their very own unique Radeon Professional SKUs – the 5300M represents the additional proliferation of AMD’s Radeon RDNA structure. Primarily based on AMD’s Navi 14 GPU, AMD is tapping their (at the moment) smallest Navi chip to supply a decrease performing and presumably decrease priced graphics adapter for laptop computer use.

AMD Radeon RX Collection Mobile Specification Comparability
  AMD Radeon RX 5300M AMD Radeon RX 5500M AMD Radeon Vega Professional 20 AMD Radeon RX 560X
CUs 22 22 20 14/16
Texture Items 88 88 80 64
ROPs 32 32 32 16
Sport Clock 1181MHz 1448MHz N/A N/A
Increase Clock 1445MHz 1645MHz 1300MHz 1275MHz
Throughput (FP32) 4.1 TFLOPs 4.6 TFLOPs 3.Three TFLOPs 2.6 TFLOPs
Reminiscence Clock 14 Gbps GDDR6 14 Gbps GDDR6 1.5 Gbps HBM2 7 Gbps GDDR5
Reminiscence Bus Width 96-bit 128-bit 1024-bit 128-bit
Typical Board Energy ? 85W ? ?
Structure RDNA (1) RDNA (1) Vega

(GCN 5)
GPU Navi 14 Navi 14 Vega 12 Polaris 11
Launch Date This fall 2019 This fall 2019 10/2018 04/2018

At a excessive stage, the 5300M is an extra lower down model of Navi 14. AMD has held the variety of CUs fixed at 22 (which was already a cut-down quantity from a full chip), and as an alternative they’ve lower the reminiscence bus as an alternative. By disabling one of many Four reminiscence partitions, the ensuing chip finally ends up with a 96-bit GDDR6 reminiscence bus, and a proportional drop in reminiscence bandwidth. The tip result’s that the 5300M will get a most of 168GB/sec of reminiscence bandwidth, down from 224GB/sec in 5500M. This additionally limits the cardboard to 3GB of VRAM, additional differentiating the 5300M from the 5500M, and decreasing the full invoice of supplies prices for OEMs.

In any other case, whereas the processing core of the GPU hasn’t been reduce additional when it comes to {hardware}, the 5300M does ship with noticeably decrease clocks. The sport clock for the brand new adapter is simply 1181MHz, 267Mhz decrease than on the 5500M. The online result’s that, on paper, shading, texturing, compute, and ROP efficiency ought to all be round 82% of 5500M’s efficiency, not counting the hit from the lowered reminiscence bandwidth.

In the meantime, AMD sadly isn’t disclosing TDPs for the brand new cell half. So it’s not clear how a lot decrease (if in any respect) the ability consumption of the 5300M is. The drop in clockspeeds in addition to the narrower reminiscence bus ought to assist to scale back energy consumption, nonetheless there’s a wildcard in how a lot AMD must bin for energy for his or her cell components.

At any price, just like the Radeon RX 5500M sequence, the Radeon RX 5300M is formally launching this quarter. With Apple seemingly having first dibs on the Navi 14 silicon, count on to see it present up in different laptops quickly.



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