4070 super with ryzen 5 5600g 2k

[BahnStormer]

7 hours ago, IkeaGnome said:

Mind sharing your sources for this?

I'll dig out some relevant benchmarks, but in games like heavily apply RT features, like CyberPunk77, Hogwarts Legacy and Fortnite (if you use RT in that!) there is a significantly higher impact in frame rate for systems with weaker CPU's if you enable RT and even more-so if you enable path-tracing as both of those rely on the CPU feeding some of that extra information to the GPU to perform the calculations.

[BahnStormer]

7 hours ago, Alex Atkin UK said:

That screenshot sure doesn't, all I see is margin of error difference between the 3070 and 3090.

Comparison to look for is the overhead of the higher-end GPU on the CPU: especially the RTX3090 that goes from a 10% lead over the much slower RX5700XT with (what was at the time the more modern gaming CPU) the Ryzen 5 5600X: 128fps vs 140fps.

 

But then the RTX3090 with the lower end CPUs (~90fps avg) loses to the RX5700 with the 5600X (109fps).

 

That is a ~10% lead turning into a >20% loss, because somebody paired a lower end CPU with a higher-end GPU: a swing of 30% is not margin of error.

 

The driver overhead is still very real.

 

The RTX3090 is very comparable to a RTX4070S.

 

The 5600G (16Mb L3 cache) is already sits halfway between the 2600X and 5600X in terms of performance, even when you push the detail higher (see screenshot).

 

 

For 1080P, most games will become CPU bottlenecked way before being  GPU bottlenecked, especially for a competitive shooter.

 

Look up "driver overhead" on YouTube they explain and highlight each section to explain the problem with pairing high-end GPU's with lower-end CPU's (a CPU with only 16Mb L3 cache has been considered fairly "low end" for the last 5 years).

 

 

 

[BahnStormer]

On 4/8/2024 at 12:11 AM, IkeaGnome said:

Mind sharing your sources for this?

I'll dig out some more examples, but here's a starter: note how the 5700G gets beaten by 15% by the 5700X, 30% by the 5700X3D and 50% by the Ryzen 5 7600X.

 

Cited reason here is the lack of memory bandwidth on the DDR4 platform, but the 15% gaps between the 5700G/X/X3D show that it's also about cache, since the 5700G and and 5700X have the same boost speed and the 5700X3D is actually slower!