Intel Core i7-4578U vs Core i3-8121U

Intel Core i7-4578U
Intel Core i3-8121U

General info

Comparing Core i7-4578U and Core i3-8121U processor market type (desktop or notebook), architecture and sales start time and price.
Place in performance rating
 
Type
Laptop
 
Laptop
Series
Intel Core i7
 
Intel Core i3
Achitecture codename
Haswell
 
Cannon-Lake 2+0
Release date
21 July 2014
 
15 May 2018
Launch price (MSRP)
$426
 
n/d

Technical specs

Core i7-4578U and Core i3-8121U quantitative parameters such as cores and threads number, clocks, manufacturing process, cache size and multiplier lock state. These parameters indirectly say of Core i7-4578U and Core i3-8121U performance, but for precise assessment you have to consider their test results.
Number of cores
2
 
2
Number of threads
4
 
4
Maximum frequency
3.5 GHz
 
3.2 GHz
FSB
n/d
 
4 GT / s
L1 cache
128 KB
 
128 KB
L2 cache
512 KB
 
512 KB
L3 cache
4 MB
 
4 MB
Manufacturing process technology
22 nm
 
10 nm
Die size
181 mm2
 
123 mm2
Maximum core temperature
100 °C
 
105 °C
Maximum case temperature (TCase)
n/d
 
72 °C
Transistor count
1300 Million
 
n/d
64 bit support
+
 
+

Compatibility

Information on Core i7-4578U and Core i3-8121U compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one.
Max number of CPUs in a configuration
1
 
1
Socket
FCBGA1168
 
Intel BGA1440
Power consumption (TDP)
28 Watt
 
15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4578U and Core i3-8121U. You'll probably need this information if you require some particular technology.
Instruction set extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
 
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI
+
 
+
AVX
+
 
+
vPro
-
 
-
Enhanced SpeedStep (EIST)
+
 
+
QuickAssist
n/d
 
-
Speed Shift
n/d
 
+
My WiFi
n/d
 
+
Turbo Boost
2.0
 
2.0
Hyper-Threading
+
 
+
Idle States
+
 
+
Thermal Monitoring
+
 
+
Flex Memory Access
n/d
 
+
Smart Response
n/d
 
+
Demand Based Switching
n/d
 
-
FDI
+
 
n/d
HD Audio
n/d
 
+
RST
n/d
 
+

Security technologies

Core i7-4578U and Core i3-8121U technologies aimed at raising security, for example, by protecting against hacks.
TXT
-
 
-
EDB
+
 
+
Secure Key
+
 
+
MPX
-
 
+
Identity Protection
+
 
-
SGX
n/d
 
-
OS Guard
n/d
 
+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-4578U and Core i3-8121U are enumerated here.
AMD-V
+
 
-
VT-d
+
 
+
VT-x
+
 
+
VT-i
n/d
 
-
EPT
+
 
+

Memory specs

Types, maximum amount and channel number of RAM supported by Core i7-4578U and Core i3-8121U.
Supported memory types
DDR3L-1333, LPDDR3-1333
 
DDR4-2400
Maximum memory size
16 GB
 
32 GB
Max memory channels
2
 
2
Maximum memory bandwidth
25.6 GB / s
 
37.5 GB / s

Graphics specifications

General parameters of GPUs integrated into Core i7-4578U and Core i3-8121U.
Integrated graphics
Intel Iris Graphics 5100 (200 - 1200 MHz)
 
Iris Pro Plus
Graphics max frequency
1.2 GHz
 
n/d
Max video memory
2 GB
 
n/d
Quick Sync
+
 
-
Clear Video HD
+
 
n/d
InTru 3D
+
 
n/d

Graphics interfaces

Available interfaces and connections of Core i7-4578U and Core i3-8121U integrated GPUs.
Number of displays supported
3
 
n/d
eDP
+
 
n/d
DisplayPort
+
 
-
HDMI
+
 
-
VGA
+
 
n/d

Graphics image quality

Maximum display resolutions supported by Core i7-4578U and Core i3-8121U integrated GPUs, including resolutions over different interfaces.
Max resolution over HDMI 1.4
3200x2000@60Hz
 
n/d
Max resolution over DisplayPort
3200x2000@60Hz
 
n/d
Max resolution over VGA
N / A
 
n/d

Graphics API support

APIs supported by Core i7-4578U and Core i3-8121U integrated GPUs, sometimes API versions are included.
DirectX
11.2 / 12
 
n/d
OpenGL
4.3
 
n/d

Peripherals

Specifications and connection of peripherals supported by Core i7-4578U and Core i3-8121U.
PCIe revision
2
 
3.0
Max number of PCIe lanes
12
 
16

Benchmark performance

Non-gaming benchmarks performance of Core i7-4578U and Core i3-8121U. Overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance

i7-4578U 15.02
i3-8121U 15.09 +0.5%

Passmark

i7-4578U 4780
i3-8121U 4802 +0.5%

Gaming performance

Let's see how good Core i7-4578U and Core i3-8121U are for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately.

Advantages of Intel Core i7-4578U

HyperThreading (allows one physical CPU function as two logical ones. It increases performance, since while one logical CPU is waiting for data, the second may still do useful work)
Quick Sync (hardware acceleration of video encoding and decoding for Intel CPUs. Speeds up video encoding by times, but at the cost of somewhat lower quality)
Virtualization (Hardware acceleration of virtual machines)
AES-NI (Advanced Encryption Standard New Instructions - additional instructions for hardware acceleration of AES encryption and decryption)
IdentityProtectionTechVersion
QuickSyncVideo
DisplayPortMenu
HDMIMenu

Advantages of Intel Core i3-8121U

0.5% faster in synthetic tests
Much newer (15 May 2018 vs 21 July 2014)
Finer manufacturing process technology (10 vs 22 nm)
Less power hungry (15 vs 28 watts)
MMX (MultiMedia Extensions - the very first (1996) SIMD instruction expansion for Intel desktop CPUs, works with 64-bit registers)
SSE (Streaming SIMD Instructions - a SIMD instruction extension working with 128-bit registers)
AES (Advanced Encryption Standard instructions set - hardware acceleration of AES encryption and decryption. Speeds up encryption software, e.g. Veracrypt)
x86-64 (a general name for 64-bit extension of x86 instruction set. There are AMD64 and Intel 64 versions that differ very little)
MemoryProtectionExtensionsVersion

So, Core i7-4578U or Core i3-8121U?

Technical City couldn't decide between Intel Core i7-4578U and Intel Core i3-8121U. The differences in performance seem too small.
Should you still have questions on choice between Core i7-4578U and Core i3-8121U, ask them in Comments section, and we shall answer.

Cast your vote

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favourite CPU.
Intel Core i7-4578U
Intel Core i3-8121U
Like
Like

Advices and comments

Here you can ask a question about Core i7-4578U or Core i3-8121U, agree or disagree with our judgements, or report an error or mismatch.