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Intel Core i7-3820 vs AMD Ryzen 5 PRO 7645

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Intel Core i7-3820

The Intel Core i7-3820 operates with 4 cores and 8 CPU threads. It run at 3.80 GHz base -- all cores while the TDP is set at 130 W.The processor is attached to the LGA 2011 CPU socket. This version includes 10.00 MB of L3 cache on one chip, supports 4 memory channels to support DDR3-1066DDR3-1333DDR3-1600 RAM and features 2.0 PCIe Gen 40 lanes. Tjunction keeps below 105 °C degrees C. In particular, Sandy Bridge E Architecture is enhanced with 32 nm technology and supports VT-x, VT-x EPT, VT-d (C2 Stepping). The product was launched on Q1/2012

AMD Ryzen 5 PRO 7645

The AMD Ryzen 5 PRO 7645 operates with 64 cores and 8 CPU threads. It run at 5.10 GHz base all cores while the TDP is set at 45 W.The processor is attached to the CPU socket. This version includes of L3 cache on one chip, supports memory channels to support RAM and features PCIe Gen lanes. Tjunction keeps below degrees C. In particular, Architecture is enhanced with technology and supports . The product was launched on

Intel Core i7-3820

AMD Ryzen 5 PRO 7645

Intel Core i7-3820

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AMD Ryzen 5 PRO 7645

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Compare Detail

3.60 GHz	Frequency	3.80 GHz
4	Cores	64
3.80 GHz	Turbo (1 Core)	5.10 GHz
--	Turbo (All Cores)
Yes	Hyperthreading
Yes	Overclocking
normal	Core Architecture
no iGPU	GPU
No turbo	GPU (Turbo)
32 nm	Technology
No turbo	GPU (Turbo)
	DirectX Version
	Max. displays
DDR3-1066DDR3-1333DDR3-1600	Memory
4	Memory channels
	Max memory
No	ECC
--	L2 Cache
10.00 MB	L3 Cache
2.0	PCIe version
40	PCIe lanes
32 nm	Technology
LGA 2011	Socket
130 W	TDP
VT-x, VT-x EPT, VT-d (C2 Stepping)	Virtualization
Q1/2012	Release date
Show more data		Show more data

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 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.

Intel Core i7-3820 (0%)

AMD Ryzen 5 PRO 7645 1,877 (76%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 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.

Intel Core i7-3820 (0%)

AMD Ryzen 5 PRO 7645 14,543 (14%)

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.

Intel Core i7-3820 (0%)

AMD Ryzen 5 PRO 7645 732 (80%)

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.

Intel Core i7-3820 (0%)

AMD Ryzen 5 PRO 7645 5,853 (16%)

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.

Intel Core i7-3820 (0%)

AMD Ryzen 5 PRO 7645 2,059 (82%)

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.

Intel Core i7-3820 (0%)

AMD Ryzen 5 PRO 7645 11,150 (14%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.

Intel Core i7-3820 (0%)

AMD Ryzen 5 PRO 7645 564 (2%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-Comparison. However the majority of CPUs have not been tested and the results have been estimated by a CPU-Comparison’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.

Intel Core i7-3820 (0%)

AMD Ryzen 5 PRO 7645 27,999 (18%)

Electric Usage Estimate

Average hours of use per day

Average CPU Utilization (0-100%)

Power cost, dollar per kWh

Electric Usage Estimate

Average hours of use per day

Average CPU Utilization (0-100%)

Power cost, dollar per kWh

Intel Core i7-3820		AMD Ryzen 5 PRO 7645
130 W	Max TDP	0
NA	Power consumption per day (kWh)	NA
NA	Running cost per day	NA
NA	Power consumption per year (kWh)	NA
NA	Running cost per year	NA