Intel Core i7-4790 vs Intel Core i7-3820

Comparative analysis of Intel Core i7-4790 and Intel Core i7-3820 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

Intel Core i7-4790

Intel Core i7-3820

Differences

Reasons to consider the Intel Core i7-4790

CPU is newer: launch date 2 year(s) 2 month(s) later
Around 5% higher clock speed: 4.00 GHz vs 3.80 GHz
Around 9% higher maximum core temperature: 72.72°C vs 66.8°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
Around 55% lower typical power consumption: 84 Watt vs 130 Watt
Around 28% better performance in PassMark - Single thread mark: 2229 vs 1744
Around 26% better performance in PassMark - CPU mark: 7267 vs 5779
Around 25% better performance in Geekbench 4 - Single Core: 943 vs 756
Around 9% better performance in Geekbench 4 - Multi-Core: 3461 vs 3163
Around 11% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 5.169 vs 4.665
Around 6% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 89.044 vs 84.218
Around 7% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.65 vs 0.606
Around 14% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 2.582 vs 2.267
Around 12% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 6.435 vs 5.758

Specifications (specs)
Launch date	1 April 2014 vs February 2012
Maximum frequency	4.00 GHz vs 3.80 GHz
Maximum core temperature	72.72°C vs 66.8°C
Manufacturing process technology	22 nm vs 32 nm
Thermal Design Power (TDP)	84 Watt vs 130 Watt
Benchmarks
PassMark - Single thread mark	2229 vs 1744
PassMark - CPU mark	7267 vs 5779
Geekbench 4 - Single Core	943 vs 756
Geekbench 4 - Multi-Core	3461 vs 3163
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	5.169 vs 4.665
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	89.044 vs 84.218
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.65 vs 0.606
CompuBench 1.5 Desktop - Video Composition (Frames/s)	2.582 vs 2.267
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	6.435 vs 5.758

Reasons to consider the Intel Core i7-3820

Around 25% more L3 cache; more data can be stored in the L3 cache for quick access later
2x more maximum memory size: 64.23 GB vs 32 GB
Around 37% better performance in 3DMark Fire Strike - Physics Score: 3318 vs 2429

Specifications (specs)
L3 cache	10240 KB (shared) vs 8 MB
Maximum memory size	64.23 GB vs 32 GB
Benchmarks
3DMark Fire Strike - Physics Score	3318 vs 2429

Compare benchmarks

CPU 1: Intel Core i7-4790
CPU 2: Intel Core i7-3820

PassMark - Single thread mark

CPU 1

CPU 2

2229

1744

PassMark - CPU mark

CPU 1

CPU 2

7267

5779

Geekbench 4 - Single Core

CPU 1

CPU 2

943

756

Geekbench 4 - Multi-Core

CPU 1

CPU 2

3461

3163

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

2429

3318

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

5.169

4.665

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

89.044

84.218

CompuBench 1.5 Desktop - T-Rex (Frames/s)

CPU 1

CPU 2

0.65

0.606

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

2.582

2.267

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

6.435

5.758

Name	Intel Core i7-4790	Intel Core i7-3820
PassMark - Single thread mark	2229	1744
PassMark - CPU mark	7267	5779
Geekbench 4 - Single Core	943	756
Geekbench 4 - Multi-Core	3461	3163
3DMark Fire Strike - Physics Score	2429	3318
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	5.169	4.665
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	89.044	84.218
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.65	0.606
CompuBench 1.5 Desktop - Video Composition (Frames/s)	2.582	2.267
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	6.435	5.758
GFXBench 4.0 - Car Chase Offscreen (Frames)	1245
GFXBench 4.0 - Manhattan (Frames)	2226
GFXBench 4.0 - T-Rex (Frames)	3807
GFXBench 4.0 - Car Chase Offscreen (Fps)	1245
GFXBench 4.0 - Manhattan (Fps)	2226
GFXBench 4.0 - T-Rex (Fps)	3807

Compare specifications (specs)

	Intel Core i7-4790	Intel Core i7-3820
Essentials
Architecture codename	Haswell	Sandy Bridge E
Launch date	1 April 2014	February 2012
Launch price (MSRP)	$303	$400
Place in performance rating	1623	2236
Price now	$278.99	$199.99
Processor Number	i7-4790	i7-3820
Series	4th Generation Intel® Core™ i7 Processors	Intel® Core™ X-series Processors
Status	Discontinued	Discontinued
Value for money (0-100)	10.55	13.26
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.60 GHz	3.60 GHz
Bus Speed	5 GT/s DMI2	5 GT/s DMI2
Die size	177 mm	294 mm
L1 cache	256 KB	64 KB (per core)
L2 cache	1 MB	256 KB (per core)
L3 cache	8 MB	10240 KB (shared)
Manufacturing process technology	22 nm	32 nm
Maximum case temperature (TCase)	72 °C	67 °C
Maximum core temperature	72.72°C	66.8°C
Maximum frequency	4.00 GHz	3.80 GHz
Number of cores	4	4
Number of threads	8	8
Transistor count	1400 Million	1270 million
VID voltage range		0.600V – 1.350V
Memory
Max memory channels	2	4
Maximum memory bandwidth	25.6 GB/s	51.2 GB/s
Maximum memory size	32 GB	64.23 GB
Supported memory types	DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V	DDR3 1066/1333/1600
Graphics
Device ID	0x412
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.20 GHz
Graphics max frequency	1.2 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	2 GB
Processor graphics	Intel® HD Graphics 4600
Graphics interfaces
DisplayPort
DVI
eDP
HDMI
Number of displays supported	3
VGA
Wireless Display (WiDi) support
Graphics image quality
Max resolution over DisplayPort	3840x2160@60Hz
Max resolution over eDP	3840x2160@60Hz
Max resolution over HDMI 1.4	4096x2304@24Hz
Max resolution over VGA	1920x1200@60Hz
Graphics API support
DirectX	11.2/12
OpenGL	4.3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	52.5mm x 45.0mm
Sockets supported	FCLGA1150	FCLGA2011
Thermal Design Power (TDP)	84 Watt	130 Watt
Thermal Solution	PCG 2013D
Peripherals
Max number of PCIe lanes	16	40
PCI Express revision	Up to 3.0	2.0
PCIe configurations	Up to 1x16, 2x8, 1x8+2x4
Scalability	1S Only
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.2, Intel® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® My WiFi technology
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® Demand Based Switching
Intel® Smart Response technology
Virtualization
AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)