AMD Phenom II X4 945 vs AMD Phenom II X2 521

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CPU comparison with benchmarks


AMD Phenom II X4 945 CPU1 vs CPU2 AMD Phenom II X2 521
AMD Phenom II X4 945 AMD Phenom II X2 521
AMD Phenom II Family AMD Phenom II
AMD Phenom II - 800/900 CPU group AMD Phenom II - 500
4 Generation 1
Deneb (K10) Architecture Regor (K10)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base FrequencyCPU Cores and Base Frequency

4 Cores 2
4 Threads 2
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? Yes
3.00 GHz Frequency 3.50 GHz
-- Turbo Frequency (1 Core) --
-- Turbo Frequency (All Cores) --

Internal GraphicsInternal Graphics

no iGPU GPU no iGPU
GPU frequency
GPU (Turbo)
GPU Generation
Technology
Max. displays
Execution units
Shader
Max. GPU Memory
DirectX Version

Hardware codec supportHardware codec support

No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIeMemory & PCIe

DDR2-1066, DDR3-1333 Memory DDR2-1066, DDR3-1333
Max. Memory
2 Memory channels 2
-- Bandwidth --
No ECC No
L2 Cache
6.00 MB L3 Cache 2.00 MB
PCIe version
PCIe lanes

Thermal ManagementThermal Management

125 W TDP (PL1) 65 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical detailsTechnical details

45 nm Technology 45 nm
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE3, SSE4a ISA extensions SSE3, SSE4a
AM3 Socket AM3
AMD-V Virtualization AMD-V
No AES-NI No
Q2/2009 Release date Q2/2011
show more data show more data


Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

AMD Phenom II X4 945 AMD Phenom II X4 945
4C 4T @ 3.00 GHz
168 (100%)
AMD Phenom II X2 521 AMD Phenom II X2 521
2C 2T @ 3.50 GHz
0 (0%)
Show all Cinebench R20 (Single-Core) results



Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

AMD Phenom II X4 945 AMD Phenom II X4 945
4C 4T @ 3.00 GHz
606 (100%)
AMD Phenom II X2 521 AMD Phenom II X2 521
2C 2T @ 3.50 GHz
0 (0%)
Show all Cinebench R20 (Multi-Core) results



Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

AMD Phenom II X4 945 AMD Phenom II X4 945
4C 4T @ 3.00 GHz
79 (86%)
AMD Phenom II X2 521 AMD Phenom II X2 521
2C 2T @ 3.50 GHz
92 (100%)
Show all Cinebench R15 (Single-Core) results



Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

AMD Phenom II X4 945 AMD Phenom II X4 945
4C 4T @ 3.00 GHz
304 (100%)
AMD Phenom II X2 521 AMD Phenom II X2 521
2C 2T @ 3.50 GHz
177 (58%)
Show all Cinebench R15 (Multi-Core) results



Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

AMD Phenom II X4 945 AMD Phenom II X4 945
4C 4T @ 3.00 GHz
403 (100%)
AMD Phenom II X2 521 AMD Phenom II X2 521
2C 2T @ 3.50 GHz
0 (0%)
Show all Geekbench 5, 64bit (Single-Core) results



Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

AMD Phenom II X4 945 AMD Phenom II X4 945
4C 4T @ 3.00 GHz
1343 (100%)
AMD Phenom II X2 521 AMD Phenom II X2 521
2C 2T @ 3.50 GHz
0 (0%)
Show all Geekbench 5, 64bit (Multi-Core) results



Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.

AMD Phenom II X4 945 AMD Phenom II X4 945
4C 4T @ 3.00 GHz
3740 (100%)
AMD Phenom II X2 521 AMD Phenom II X2 521
2C 2T @ 3.50 GHz
2253 (60%)
Show all Estimated results for PassMark CPU Mark results



Geekbench 3, 64bit (Single-Core)

Geekbench 3 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

AMD Phenom II X4 945 AMD Phenom II X4 945
4C 4T @ 3.00 GHz
1603 (85%)
AMD Phenom II X2 521 AMD Phenom II X2 521
2C 2T @ 3.50 GHz
1888 (100%)
Show all Geekbench 3, 64bit (Single-Core) results



Geekbench 3, 64bit (Multi-Core)

Geekbench 3 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

AMD Phenom II X4 945 AMD Phenom II X4 945
4C 4T @ 3.00 GHz
5610 (100%)
AMD Phenom II X2 521 AMD Phenom II X2 521
2C 2T @ 3.50 GHz
3480 (62%)
Show all Geekbench 3, 64bit (Multi-Core) results



Cinebench R11.5, 64bit (Single-Core)

Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

AMD Phenom II X4 945 AMD Phenom II X4 945
4C 4T @ 3.00 GHz
0.91 (86%)
AMD Phenom II X2 521 AMD Phenom II X2 521
2C 2T @ 3.50 GHz
1.06 (100%)
Show all Cinebench R11.5, 64bit (Single-Core) results



Cinebench R11.5, 64bit (Multi-Core)

Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

AMD Phenom II X4 945 AMD Phenom II X4 945
4C 4T @ 3.00 GHz
3.58 (100%)
AMD Phenom II X2 521 AMD Phenom II X2 521
2C 2T @ 3.50 GHz
2.08 (58%)
Show all Cinebench R11.5, 64bit (Multi-Core) results



Devices using this processorDevices using this processor

AMD Phenom II X4 945 AMD Phenom II X2 521
Unknown Unknown

Leaderboards

In our leaderboards, we have clearly compiled the best processors for specific categories for you. The leaderboards are always up to date and are regularly updated by us. The best processors are selected according to popularity and speed in benchmarks as well as the price-performance ratio.


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