我已经设置了自己的 PC - 对这些东西没有太多经验 - 现在我在玩游戏时遇到了一些问题。基准测试告诉我大多数游戏（实际上是 Borderlands 2）应该可以顺利运行。但是当我玩游戏时，它会出现延迟，即使在 1024x768 分辨率下所有图形要求都很低的情况下也是如此。我安装了驱动程序，但没有任何变化。所以我想知道出了什么问题。为什么我的体验与基准测试有如此大的差异。
我已经安装了 CPU-Z，以下是输出：
CPU-Z TXT Report
-------------------------------------------------------------------------
Binaries
-------------------------------------------------------------------------
CPU-Z version 1.63.0
Processors
-------------------------------------------------------------------------
Number of processors 1
Number of threads 4
APICs
-------------------------------------------------------------------------
Processor 0
-- Core 0
-- Thread 0 0
-- Core 1
-- Thread 0 1
-- Core 2
-- Thread 0 2
-- Core 3
-- Thread 0 3
Timers
-------------------------------------------------------------------------
ACPI timer 3.580 MHz
HPET timer 14.318 MHz
Perf timer 2.827 MHz
Sys timer 1.000 KHz
Processors Information
-------------------------------------------------------------------------
Processor 1 ID = 0
Number of cores 4 (max 4)
Number of threads 4 (max 4)
Name AMD A8-3850
Codename Llano
Specification AMD A8-3850 APU with Radeon(tm) HD Graphics
Package Socket FM1 (905)
CPUID F.1.0
Extended CPUID 12.1
Brand ID 21
Core Stepping LN1-B0
Technology 32 nm
TDP Limit 111 Watts
Core Speed 2894.8 MHz
Multiplier x FSB 29.0 x 99.8 MHz
Stock frequency 2900 MHz
Instructions sets MMX (+), 3DNow! (+), SSE, SSE2, SSE3, SSE4A, x86-64, AMD-V
L1 Data cache 4 x 64 KBytes, 2-way set associative, 64-byte line size
L1 Instruction cache 4 x 64 KBytes, 2-way set associative, 64-byte line size
L2 cache 4 x 1024 KBytes, 16-way set associative, 64-byte line size
FID/VID Control yes
Min FID 8.0x
VID range 0.450 V - 1.412 V
# of P-States 8
P-State FID 0xD - VID 0x0B - IDD 19 (29.00x - 1.412 V)
P-State FID 0xA - VID 0x0E - IDD 17 (26.00x - 1.375 V)
P-State FID 0x7 - VID 0x12 - IDD 15 (23.00x - 1.325 V)
P-State FID 0x4 - VID 0x16 - IDD 13 (20.00x - 1.275 V)
P-State FID 0x10B - VID 0x1A - IDD 12 (18.00x - 1.225 V)
P-State FID 0x20C - VID 0x1F - IDD 9 (14.00x - 1.162 V)
P-State FID 0x206 - VID 0x24 - IDD 7 (11.00x - 1.100 V)
P-State FID 0x308 - VID 0x2A - IDD 6 (8.00x - 1.025 V)
Package Type 0x2
Model 51
String 1 0x5
String 2 0x1
Page 0x0
TDC Limit 76 Amps
Boosted P-States 0
Max non-turbo ratio 29.00x
Max turbo ratio 29.00x
Attached device PCI device at bus 0, device 24, function 0
Attached device PCI device at bus 0, device 24, function 1
Attached device PCI device at bus 0, device 24, function 2
Attached device PCI device at bus 0, device 24, function 3
Attached device PCI device at bus 0, device 24, function 4
Thread dumps
-------------------------------------------------------------------------
CPU Thread 0
APIC ID 0
Topology Processor ID 0, Core ID 0, Thread ID 0
Type 02040000h
Max CPUID level 00000006h
Max CPUID ext. level 8000001Bh
Cache descriptor Level 1, I, 64 KB, 1 thread(s)
Cache descriptor Level 1, D, 64 KB, 1 thread(s)
Cache descriptor Level 2, U, 1 MB, 1 thread(s)
CPU Thread 1
APIC ID 1
Topology Processor ID 0, Core ID 1, Thread ID 0
Type 02040000h
Max CPUID level 00000006h
Max CPUID ext. level 8000001Bh
Cache descriptor Level 1, I, 64 KB, 1 thread(s)
Cache descriptor Level 1, D, 64 KB, 1 thread(s)
Cache descriptor Level 2, U, 1 MB, 1 thread(s)
CPU Thread 2
APIC ID 2
Topology Processor ID 0, Core ID 2, Thread ID 0
Type 02040000h
Max CPUID level 00000006h
Max CPUID ext. level 8000001Bh
Cache descriptor Level 1, I, 64 KB, 1 thread(s)
Cache descriptor Level 1, D, 64 KB, 1 thread(s)
Cache descriptor Level 2, U, 1 MB, 1 thread(s)
CPU Thread 3
APIC ID 3
Topology Processor ID 0, Core ID 3, Thread ID 0
Type 02040000h
Max CPUID level 00000006h
Max CPUID ext. level 8000001Bh
Cache descriptor Level 1, I, 64 KB, 1 thread(s)
Cache descriptor Level 1, D, 64 KB, 1 thread(s)
Cache descriptor Level 2, U, 1 MB, 1 thread(s)
Chipset
-------------------------------------------------------------------------
Northbridge AMD K12 Bridge rev. 00
Southbridge AMD A55/A60M rev. 11
Graphic Interface PCI-Express
PCI-E Link Width x0
PCI-E Max Link Width x0
Memory Type DDR3
Memory Size 8192 MBytes
Memory Frequency 532.4 MHz (3:16)
CAS# latency (CL) 7.0
RAS# to CAS# delay (tRCD) 7
RAS# Precharge (tRP) 7
Cycle Time (tRAS) 20
Bank Cycle Time (tRC) 27
Memory SPD
-------------------------------------------------------------------------
DIMM # 1
SMBus address 0x50
Memory type DDR3
Module format UDIMM
Manufacturer (ID) G.Skill (7F7F7F7FCD000000)
Size 8192 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number F3-10666CL9-8GBXL
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 5.0-5-5-14-19 @ 380 MHz
JEDEC #2 6.0-6-6-17-23 @ 457 MHz
JEDEC #3 7.0-7-7-20-27 @ 533 MHz
JEDEC #4 8.0-8-8-22-30 @ 609 MHz
JEDEC #5 9.0-9-9-25-34 @ 685 MHz
JEDEC #6 10.0-10-10-28-38 @ 761 MHz
DIMM # 1
Monitoring
-------------------------------------------------------------------------
Mainboard Model A75M-HVS (0x00000218 - 0x009CE752)
DMI
-------------------------------------------------------------------------
DMI BIOS
vendor American Megatrends Inc.
version P1.80
date 05/26/2012
ROM size 4096 KB
DMI System Information
manufacturer To Be Filled By O.E.M.
product To Be Filled By O.E.M.
version To Be Filled By O.E.M.
serial To Be Filled By O.E.M.
UUID {03000200-0400-0500-0006-000700080009}
DMI Baseboard
vendor ASRock
model A75M-HVS
revision unknown
serial unknown
DMI System Enclosure
manufacturer To Be Filled By O.E.M.
chassis type Desktop
chassis serial To Be Filled By O.E.M.
DMI Extension Slot
designation PCI1
type PCI
width 32 bits
populated yes
DMI Extension Slot
designation PCIE2
type A5
populated yes
DMI Extension Slot
designation PCIE3
type A5
populated yes
DMI OEM Strings
string[0] To Be Filled By O.E.M.
DMI Physical Memory Array
location Motherboard
usage System Memory
correction None
max capacity 8192 MBytes
max# of devices 2
DMI Memory Device
designation A1_DIMM0
format DIMM
type unknown
total width 64 bits
data width 64 bits
size 8192 MBytes
DMI Memory Device
designation A1_DIMM1
format DIMM
type unknown
data width 64 bits
DMI Processor
manufacturer AMD
model AMD A8-3850 APU with Radeon(tm) HD Graphics
clock speed 2900.0 MHz
FSB speed 100.0 MHz
multiplier 29.0x
Graphics
-------------------------------------------------------------------------
Number of adapters 1
Graphic APIs
-------------------------------------------------------------------------
API ATI I/O
API ADL SDK
Display Adapters
-------------------------------------------------------------------------
Display adapter 0
Name AMD Radeon HD 6550D
Codename Sumo
Technology 32 nm
Memory size 512 MB
PCI device bus 0 (0x0), device 1 (0x1), function 0 (0x0)
Vendor ID 0x1002 (0x1849)
Model ID 0x9640 (0x9640)
Performance Level 0
Core clock 282.4 MHz
Memory clock 533.0 MHz
Performance Level 1
Core clock 1800.0 MHz
Memory clock 533.0 MHz
Win32_VideoController AdapterRAM = 0x20000000 (536870912)
Software
-------------------------------------------------------------------------
Windows Version Microsoft Windows 7 (6.1) Home Premium Edition 64-bit (Build 7600)
DirectX Version 11.0
那么，我是否可以提高设置？特别是 GPU？我听说我可以将 GPU 内存增加到 4GB。但我该怎么做呢？在 bios 设置中，我没有找到解决方案。
答案1
根据这，AMD Radeon HD 6550D 最多支持 1024 MiB 共享内存。但是，您的特定主板仅支持 512 MiB 共享内存（来源）。1
AMD A8-3850 的 GPU 频率（与 A8-3870K 不同）被锁定，无法调整。
我发现的基准测试表明一些（当然不是大多数）最近可玩的游戏都是使用（1024 MiB）DDR3-1866 内存进行的。您使用的是 DDR3-1333 内存，速度几乎慢了 30%。虽然 CPU 本身几乎无法从速度提升中受益，但即使 DDR3-1866 内存对于 GPU 来说也相当慢，如果将其与专用显卡中使用的 GDDR5 内存进行比较的话。
因此，要充分利用 GPU，您需要购买新主板和更快的内存。专用显卡可能更便宜，效果也更好。
1作为参考，您可以调整共享内存量先进的→北桥配置→共享内存在 BIOS 中。