5 ms·
The problem is memory bandwidth. The M2 has a bandwidth of 100 GB/s, whereas this RX 7600 has 288 GB/s, and top of the line RX 7900 and RTX 4090 reach almost 1
by pezezin 3y ago
The problem is memory bandwidth. The M2 has a bandwidth of 100 GB/s, whereas this RX 7600 has 288 GB/s, and top of the line RX 7900 and RTX 4090 reach almost 1 TB/s. Reaching such speeds with standard DDR5 would require a massive number of channels that is impractical for desktop PCs.
The M1, M2, PS5 and Xbox get away with it by being closed systems without any possibility for expansion, but gaming PCs are expected to be expandable.
- hotstickyballs 3y agoPC gaming is responsible for most of the bugs. With Nvidia going all in on cloud compute, gaming is going either console or cloud IMO.
- pezezin 3y agoSure, look at the huge success of Stadia /s Cloud gaming is not an option for most gamers for a very simple reason: latency. By the way, people have been predicting the death of PC gaming since at least the PSX/Saturn/N64 era, yet here we are...
- dontlaugh 3y agoCertainly PC gaming has terrible ergonomics and is very annoying. Sadly, some things you can't play on a console. Cloud gaming is not even close to being an option, the latency is disastrous. Even streaming locally on gigabit network has poor latency, let alone over the internet.
- windowsrookie 3y agoThe Xbox Series X uses GDDR6 and has a memory bandwidth of 560GB/s. I'm assuming apple is using LPDDR5 for power efficiency. Theoretically they could make a desktop specific chip with GDDR6.
- lukevp 3y agoThe M1 ultra has 800 GB/s memory bandwidth. That’s not very far off from the RTX 4090.
- pezezin 3y agoBut the M1 and M2 lines are system-in-package, with the memory soldered on the same package as the CPU, and thus not upgradeable.
- dontlaugh 3y agoNo GPUs have upgradeable memory either.
- pezezin 3y agoBut CPUs do, and if the GPU is discrete you can replace it.
- dontlaugh 3y agoAnd yet the GPU is most of the cost of the entire machine. Not much is gained by the modularity on the CPU side.
- pezezin 3y agoDepends on the machine. If you pair a RTX 4090 with a potato CPU then sure, if you go for something more reasonable, not at all. At least you need to consider the CPU, motherboard, and RAM.