Intel Core i3-2120T vs Intel Atom Z3740

Last updated:

CPU comparison with benchmarks


Intel Core i3-2120T CPU1 vs CPU2 Intel Atom Z3740
Intel Core i3-2120T Intel Atom Z3740

CPU comparison

Intel Core i3-2120T or Intel Atom Z3740 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Core i3-2120T has 2 cores with 4 threads and clocks with a maximum frequency of 2.60 GHz. Up to 32 GB of memory is supported in 2 memory channels. The Intel Core i3-2120T was released in Q3/2011.

The Intel Atom Z3740 has 4 cores with 4 threads and clocks with a maximum frequency of 1.86 GHz. The CPU supports up to 4 GB of memory in 2 memory channels. The Intel Atom Z3740 was released in Q3/2013.
Intel Core i3 (205) Family Intel Atom (108)
Intel Core i 2000 (28) CPU group Intel Atom Z3700 (16)
2 Generation 4
Sandy Bridge S Architecture Bay Trail
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core i3-2120T has 2 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Core i3-2120T is 2.60 GHz while the Intel Atom Z3740 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Atom Z3740 is at 1.33 GHz (1.86 GHz).

Intel Core i3-2120T Characteristic Intel Atom Z3740
2 Cores 4
4 Threads 4
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
2.60 GHz Frequency 1.33 GHz
-- Turbo Frequency (1 Core) 1.86 GHz
-- Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

Intel Core i3-2120T Characteristic Intel Atom Z3740
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The Intel Core i3-2120T or Intel Atom Z3740 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

Intel HD Graphics 2000 GPU Intel HD Graphics (Bay Trail GT1)
0.65 GHz GPU frequency 0.31 GHz
1.10 GHz GPU (Turbo) 0.67 GHz
6 GPU Generation 7
32 nm Technology 22 nm
2 Max. displays 2
6 Compute units 4
48 Shader 32
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory 2 GB
10.1 DirectX Version 11.2

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

Intel HD Graphics 2000 GPU Intel HD Graphics (Bay Trail GT1)
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
No Codec JPEG Decode

Memory & PCIe

The Intel Core i3-2120T can use up to 32 GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The Intel Atom Z3740 supports up to 4 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 17.1 GB/s.

Intel Core i3-2120T Characteristic Intel Atom Z3740
DDR3-1066, DDR3-1333 Memory LPDDR3-1066
32 GB Max. Memory 4 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 17.1 GB/s
No ECC No
-- L2 Cache --
3.00 MB L3 Cache 2.00 MB
2.0 PCIe version --
16 PCIe lanes --
8.0 GB/s PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Intel Core i3-2120T is 35 W, while the Intel Atom Z3740 has a TDP of 4 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Core i3-2120T Characteristic Intel Atom Z3740
35 W TDP (PL1 / PBP) 4 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 90 °C

Technical details

The Intel Core i3-2120T is manufactured in 32 nm and has 3.00 MB cache. The Intel Atom Z3740 is manufactured in 22 nm and has a 2.00 MB cache.

Intel Core i3-2120T Characteristic Intel Atom Z3740
32 nm Technology 22 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX ISA extensions SSE4.1, SSE4.2
LGA 1155 Socket BGA 1380
VT-x, VT-x EPT Virtualization VT-x, VT-x EPT
Yes AES-NI Yes
Windows 10, Linux Operating systems
Q3/2011 Release date Q3/2013
121 $ Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Core i3-2120T to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the Intel Atom Z3740 to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
Intel Core i3-2120T (100%)
Intel Atom Z3740 (35%)
⌀ Multi core performance in 3 CPU benchmarks
Intel Core i3-2120T (100%)
Intel Atom Z3740 (44%)

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 i3-2120T Intel Core i3-2120T
2C 4T @ 2.60 GHz
515 (100%)
Intel Atom Z3740 Intel Atom Z3740
4C 4T @ 1.86 GHz
187 (36%)

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 i3-2120T Intel Core i3-2120T
2C 4T @ 2.60 GHz
1202 (100%)
Intel Atom Z3740 Intel Atom Z3740
4C 4T @ 1.33 GHz
665 (55%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core i3-2120T Intel Core i3-2120T
2C 4T @ 2.60 GHz
418 (100%)
Intel Atom Z3740 Intel Atom Z3740
4C 4T @ 1.86 GHz
142 (34%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core i3-2120T Intel Core i3-2120T
2C 4T @ 2.60 GHz
903 (100%)
Intel Atom Z3740 Intel Atom Z3740
4C 4T @ 1.33 GHz
300 (33%)

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 i3-2120T Intel Core i3-2120T
Intel HD Graphics 2000 @ 1.10 GHz
106 (100%)
Intel Atom Z3740 Intel Atom Z3740
Intel HD Graphics (Bay Trail GT1) @ 0.67 GHz
43 (40%)

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.
Intel Core i3-2120T Intel Core i3-2120T
2C 4T @ 2.60 GHz
1502 (100%)
Intel Atom Z3740 Intel Atom Z3740
4C 4T @ 1.33 GHz
639 (43%)

Devices using this processor

Intel Core i3-2120T Intel Atom Z3740
Unknown Unknown

Popular comparisons containing this CPUs

1. Intel Atom Z3740Intel Atom x5-Z8350 Intel Atom Z3740 vs Intel Atom x5-Z8350
2. Qualcomm Snapdragon 888Intel Core i3-2120T Qualcomm Snapdragon 888 vs Intel Core i3-2120T
3. Intel Atom Z3740Intel Celeron N4000 Intel Atom Z3740 vs Intel Celeron N4000
4. Intel Atom Z3740Intel Core i5-7Y54 Intel Atom Z3740 vs Intel Core i5-7Y54
5. Intel Atom Z3740Intel Pentium Silver N5000 Intel Atom Z3740 vs Intel Pentium Silver N5000
6. Intel Atom Z3740Intel Celeron J1900 Intel Atom Z3740 vs Intel Celeron J1900
7. Intel Xeon Gold 5222Intel Atom Z3740 Intel Xeon Gold 5222 vs Intel Atom Z3740
8. Intel Core i3-4000MIntel Atom Z3740 Intel Core i3-4000M vs Intel Atom Z3740
9. Intel Atom Z3740Intel Xeon Gold 6238T Intel Atom Z3740 vs Intel Xeon Gold 6238T
10. Intel Atom Z3740Intel Xeon Platinum 8168 Intel Atom Z3740 vs Intel Xeon Platinum 8168


back to index