What motherboard is it? It may be depending on the board the cpu throttling due to inadequate vrm's. Just a thought.
Ps. on the strix edition the fans won't kick in til the gpu hits 65c.
It could be this on Mordor, ideally with a 2gb 285 you can have everything high at 1080p but the textures at medium.
Unlikely. My GFX card is no where as good as his and not even I get this issue.
We both play ARK:Survival Evolved. (Not the best to give feedback on due to early access) but he can run this on much higher settings his frame rate is great but still drops down really low then bounces back (Even on low settings) As I said it doesn't matter on the game it happens. Something I do not experience with my card on ARK either. Got a report on his PC so maybe this will help solve the problem, sorry for wall of text.
System info.
Summary
Operating System
Windows 7 Home Premium 64-bit SP1
CPU
AMD FX-8320 19 ?C
Vishera 32nm Technology
RAM
20.0GB Dual-Channel DDR3 @ 665MHz (9-9-9-24)
Motherboard
ASRock 970 Extreme4 (CPUSocket) 37 ?C
Graphics
HDTV (1920x1080@60Hz)
2048MB ATI AMD Radeon R9 200 Series (ASUStek Computer Inc) 54 ?C
Storage
111GB KINGSTON SV300S37A120G ATA Device (SSD) 28 ?C
931GB Seagate ST1000DL002-9TT153 ATA Device (SATA) 34 ?C
931GB Generic External USB Device (USB (SATA))
Optical Drives
PIONEER BD-RW BDR-207D ATA Device
TSSTcorp CDDVDW SH-S223B ATA Device
Threads APIC ID: 7
RAM
Memory slots
Total memory slots 4
Used memory slots 3
Free memory slots 1
Memory
Type DDR3
Size 20480 MBytes
Channels # Dual
DRAM Frequency 665.1 MHz
CAS# Latency (CL) 9 clocks
RAS# to CAS# Delay (tRCD) 9 clocks
RAS# Precharge (tRP) 9 clocks
Cycle Time (tRAS) 24 clocks
Bank Cycle Time (tRC) 33 clocks
Physical Memory
Memory Usage 14 %
Total Physical 16 GB
Available Physical 14 GB
Total Virtual 32 GB
Available Virtual 30 GB
SPD
Number Of SPD Modules 3
Slot #1
Type DDR3
Size 8192 MBytes
Manufacturer Crucial Technology
Max Bandwidth PC3-10700 (667 MHz)
Part Number BLT8G3D1869DT1TX0.
Serial Number A6199B2E
SPD Ext. XMP
Timing table
JEDEC #1
Frequency 457.1 MHz
CAS# Latency 6.0
RAS# To CAS# 6
RAS# Precharge 6
tRAS 17
tRC 23
Voltage 1.500 V
JEDEC #2
Frequency 533.3 MHz
CAS# Latency 7.0
RAS# To CAS# 7
RAS# Precharge 7
tRAS 20
tRC 27
Voltage 1.500 V
JEDEC #3
Frequency 609.5 MHz
CAS# Latency 8.0
RAS# To CAS# 8
RAS# Precharge 8
tRAS 22
tRC 30
Voltage 1.500 V
JEDEC #4
Frequency 666.7 MHz
CAS# Latency 9.0
RAS# To CAS# 9
RAS# Precharge 9
tRAS 24
tRC 33
Voltage 1.500 V
XMP-1866
Frequency 933 MHz
CAS# Latency 9.0
RAS# To CAS# 9
RAS# Precharge 9
tRAS 27
Voltage 1.500 V
Slot #2
Type DDR3
Size 8192 MBytes
Manufacturer Crucial Technology
Max Bandwidth PC3-10700 (667 MHz)
Part Number BLT8G3D1869DT1TX0.
Serial Number A708934B
SPD Ext. XMP
Timing table
JEDEC #1
Frequency 457.1 MHz
CAS# Latency 6.0
RAS# To CAS# 6
RAS# Precharge 6
tRAS 17
tRC 23
Voltage 1.500 V
JEDEC #2
Frequency 533.3 MHz
CAS# Latency 7.0
RAS# To CAS# 7
RAS# Precharge 7
tRAS 20
tRC 27
Voltage 1.500 V
JEDEC #3
Frequency 609.5 MHz
CAS# Latency 8.0
RAS# To CAS# 8
RAS# Precharge 8
tRAS 22
tRC 30
Voltage 1.500 V
JEDEC #4
Frequency 666.7 MHz
CAS# Latency 9.0
RAS# To CAS# 9
RAS# Precharge 9
tRAS 24
tRC 33
Voltage 1.500 V
XMP-1866
Frequency 933 MHz
CAS# Latency 9.0
RAS# To CAS# 9
RAS# Precharge 9
tRAS 27
Voltage 1.500 V
Slot #3
Type DDR3
Size 4096 MBytes
Manufacturer Crucial Technology
Max Bandwidth PC3-10700H (667 MHz)
Part Number BLT4G3D1869DT1TX0.
Serial Number AD01F6A3
SPD Ext. XMP
Timing table
JEDEC #1
Frequency 444.4 MHz
CAS# Latency 6.0
RAS# To CAS# 6
RAS# Precharge 6
tRAS 16
tRC 22
Voltage 1.500 V
JEDEC #2
Frequency 592.6 MHz
CAS# Latency 8.0
RAS# To CAS# 8
RAS# Precharge 8
tRAS 22
tRC 30
Voltage 1.500 V
JEDEC #3
Frequency 666.7 MHz
CAS# Latency 9.0
RAS# To CAS# 9
RAS# Precharge 9
tRAS 24
tRC 33
Voltage 1.500 V
XMP-1866
Frequency 933 MHz
CAS# Latency 9.0
RAS# To CAS# 9
RAS# Precharge 9
tRAS 27
Voltage 1.500 V
Graphics
Monitor
Name HDTV on AMD Radeon R9 200 Series
Current Resolution 1920x1080 pixels
Work Resolution 1920x1040 pixels
State Enabled, Primary, Unsafe
Monitor Width 1920
Monitor Height 1080
Monitor BPP 32 bits per pixel
Monitor Frequency 60 Hz
Device \\.\DISPLAY1\Monitor0
ATI AMD Radeon R9 200 Series
Manufacturer ATI
Model AMD Radeon R9 200 Series
Device ID 1002-6939
Subvendor ASUStek Computer Inc (1043)
Current Performance Level Level 0
GPU Clock 954.0 MHz
Temperature 54 ?C
Driver version 14.501.1003.0
BIOS Version 113-AD68500-100
Memory Type GDDR5
Memory 2048 MB
Bandwidth 176.0 GB/s
Count of performance levels : 2
Level 1 - "Perf Level 0"
GPU Clock 300 MHz
Memory Clock 150 MHz
Level 2 - "Perf Level 1"
GPU Clock 954 MHz
Memory Clock 1375 MHz