Dead Rising 3 PC

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Fox5

Diamond Member
Jan 31, 2005
5,957
7
81
Just did a quick test with FRAPS:

When the game first loads, or during loading screens, it will max out all 6 cores to 100%. It then appears that they stay maxed out for a while, so it seems the game lets you start playing while still loading things in the background. Framerate can get really bad during this.

Cutscenes vary between 20fps-30fps for me, and I assume it's loading stuff in the background for the next scene since cpu load is higher.

During heavy action in actual gameplay, it uses about 3-4 threads heavily. I'm getting a solid locked 30fps with max settings.

So my guess would be: Make sure you have a ton of system ram and vram
More cores helps it load faster, and it'll let you play while you load.
Given the nature of the game, it's going to dynamically load things as you're playing, which will hurt performance when it happens. Otherwise, a Phenom II seems to have no trouble staying solid at the 30fps framerate cap.
 

Fox5

Diamond Member
Jan 31, 2005
5,957
7
81
So a lot of people are complaining about how poorly this game runs on PC, but if you look at the worst case vs an Xbox One:

Assuming this is a FLOPs limited workload and not an int limited workload...

The 8 cores on an Xbox One can do over 100Gflops. Even with the higher clock speeds, AMD's 8-core FX cpus and Intel Ivy Bridge are about the same. Haswell can do higher, if the game uses AVX2 instructions which it may not. A Phenom II will do significantly less. Integer wise, throughput is similar too to top end quad cores too.

In theory, the GPU has up to 8GB of ram available to it. It wouldn't be unreasonable to say that a 12GB system ram and 6GB vram system could be required to handle console ports now since you don't know how the system will split up the RAM usage.

Looking at GPU FLOPS alone, the Xbox one does 1.2TFlops. A 290X does 5.6 Tflops, or 4.6x as much. The specs appear to be closer together when you look at other GPU features (3x the bandwidth for instance). Asking for 1080p @ 60fps on a game that wasn't always 30fps on a console is a workload 5x as intensive as 720p @ 30fps.

All in all though, assuming the game wasn't optimize for PCs but was a straight port, it does seem like a game could take a top of the line PC in order to do double the FPS and 2.5x the resolution, and that's what it seems is happening.

The game does seem primarily graphics limited though, especially if you leave the stock 30fps cap on.
 

Aikouka

Lifer
Nov 27, 2001
30,383
912
126
One interesting thing that TB talked about in his video is that pretty much none of the graphics settings affected the framerate a noticeable amount... except for one. I forget the name, but it's near the top of the advanced graphics options menu, and it essentially sets the game's render size. So, your game will still display at whatever resolution you set in the base graphics option menu, but it will render at the reduced value. TB was displaying at 1080p119, but he showed the differences between rendering at 1080p, 1600x900 and 720p. It looked like he could keep it at around 50-60 FPS if he dropped to 720p, but the drop in graphics quality was quite noticeable.
 

imaheadcase

Diamond Member
May 9, 2005
3,850
7
76
They really just need to stop using AMD cpus in benchmarks. They are getting worse every year.
 

escrow4

Diamond Member
Feb 4, 2013
3,339
122
106
Just did a quick test with FRAPS:

When the game first loads, or during loading screens, it will max out all 6 cores to 100%. It then appears that they stay maxed out for a while, so it seems the game lets you start playing while still loading things in the background. Framerate can get really bad during this.

Cutscenes vary between 20fps-30fps for me, and I assume it's loading stuff in the background for the next scene since cpu load is higher.

During heavy action in actual gameplay, it uses about 3-4 threads heavily. I'm getting a solid locked 30fps with max settings.

So my guess would be: Make sure you have a ton of system ram and vram
More cores helps it load faster, and it'll let you play while you load.
Given the nature of the game, it's going to dynamically load things as you're playing, which will hurt performance when it happens. Otherwise, a Phenom II seems to have no trouble staying solid at the 30fps framerate cap.

Cutscenes hit 50FPS+ for me with a 4770 @ 3.7GHz and a 780 Ti GHz. If I was getting those FPS in game I'd chuck my box out the window. Stupid game doesn't support 16:10 which is more of an irritation. Rendering is 1080p/1080p.
 

davie jambo

Senior member
Feb 13, 2014
380
1
0
I bought it on Friday night there , game runs OK for me. Done the frame unlock trick. Lowest frame I've noticed was 35fps and that was when there was thousands on zombies on screen and I was driving fast

Pretty good game actually
 

Fox5

Diamond Member
Jan 31, 2005
5,957
7
81
So far so good. Anyway is this game 64 bit? It seems to be.

Yeah, the executable is 64-bit.
I threw it in process explorer just to see what it would say.

Just at main menu, it puts my GPU usage at 66%, GPU memory usage at 2.7GB with 3.1GB reserved.
It uses 3GB of system memory.

The game has a lot of threads in play, 57 in total. The two threads that use the most cpu time (far more than anything else on a thread in the dr3 executable, and the AMD graphics driver. During loading of game assets, it will spin up 6 AMD graphics drivers threads that max the cpu.
Once in game, the game is primarily blocked on a single thread, the AMD graphics driver thread. (atidxx64.dll!AmdDxExtCreate), but has an obvious main game thread, a secondary game thread (so up to 3 cores) and then a bunch of other threads that are only lightly used.
Memory usage seems to stay between 3GB-4GB, but the game has more than 4GB of memory reserved to itself, and 3.5GB of GPU memory reserved. GPU usage stays around 50%.

Based on that most of the CPU time is spent in the graphics driver, I wonder if the game is draw call limited.
 

lilrayray69

Senior member
Apr 4, 2013
501
1
76
I can't really get into it. The performance is pretty variable but for me it's more the gameplay I have trouble with.

It just feels clunky to me, I keep feeling like the camera needs to be farther back from the character. I've tried both 360 controller and mouse/keyboard, still just can't get into it
 

Gunslinger08

Lifer
Nov 18, 2001
13,234
2
81
I'd say I'm 90% through the game and I've had a lot of fun playing co-op with a friend. The game has issues, but it's enjoyable.