Intel Core i7-7700 vs Intel Pentium D 820

Comparative analysis of Intel Core i7-7700 and Intel Pentium D 820 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 i7-7700

Intel Pentium D 820

Differences

Reasons to consider the Intel Core i7-7700

CPU is newer: launch date 11 year(s) 8 month(s) later
2 more cores, run more applications at once: 4 vs 2
6 more threads: 8 vs 2
Around 50% higher clock speed: 4.20 GHz vs 2.8 GHz
Around 56% higher maximum core temperature: 100°C vs 64.1°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 90 nm
9.1x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 46% lower typical power consumption: 65 Watt vs 95 Watt
5.9x better performance in Geekbench 4 - Single Core: 1059 vs 179
13.2x better performance in Geekbench 4 - Multi-Core: 4044 vs 307

Specifications (specs)
Launch date	3 January 2017 vs May 2005
Number of cores	4 vs 2
Number of threads	8 vs 2
Maximum frequency	4.20 GHz vs 2.8 GHz
Maximum core temperature	100°C vs 64.1°C
Manufacturing process technology	14 nm vs 90 nm
L1 cache	256 KB vs 28 KB
Thermal Design Power (TDP)	65 Watt vs 95 Watt
Benchmarks
Geekbench 4 - Single Core	1059 vs 179
Geekbench 4 - Multi-Core	4044 vs 307

Reasons to consider the Intel Pentium D 820

2x more L2 cache, more data can be stored in the L2 cache for quick access later

L2 cache	2048 KB vs 1 MB
Max number of CPUs in a configuration	2 vs 1

Compare benchmarks

CPU 1: Intel Core i7-7700
CPU 2: Intel Pentium D 820

Geekbench 4 - Single Core

CPU 1

CPU 2

1059

179

Geekbench 4 - Multi-Core

CPU 1

CPU 2

4044

307

Name	Intel Core i7-7700	Intel Pentium D 820
PassMark - Single thread mark	2447
PassMark - CPU mark	8644
Geekbench 4 - Single Core	1059	179
Geekbench 4 - Multi-Core	4044	307
3DMark Fire Strike - Physics Score	3043
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	5.912
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	93.066
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.743
CompuBench 1.5 Desktop - Video Composition (Frames/s)	3.004
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	7.298
GFXBench 4.0 - Car Chase Offscreen (Frames)	1967
GFXBench 4.0 - Manhattan (Frames)	3914
GFXBench 4.0 - T-Rex (Frames)	6644
GFXBench 4.0 - Car Chase Offscreen (Fps)	1967
GFXBench 4.0 - Manhattan (Fps)	3914
GFXBench 4.0 - T-Rex (Fps)	6644

Compare specifications (specs)

	Intel Core i7-7700	Intel Pentium D 820
Essentials
Architecture codename	Kaby Lake	Smithfield
Launch date	3 January 2017	May 2005
Launch price (MSRP)	$303
Place in performance rating	1119	3302
Price now	$309.99
Processor Number	i7-7700	820
Series	7th Generation Intel® Core™ i7 Processors	Legacy Intel® Pentium® Processor
Status	Launched	Discontinued
Value for money (0-100)	10.22
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.60 GHz	2.80 GHz
Bus Speed	8 GT/s DMI3	800 MHz FSB
L1 cache	256 KB	28 KB
L2 cache	1 MB	2048 KB
L3 cache	8 MB
Manufacturing process technology	14 nm	90 nm
Maximum case temperature (TCase)	72 °C
Maximum core temperature	100°C	64.1°C
Maximum frequency	4.20 GHz	2.8 GHz
Number of cores	4	2
Number of QPI Links	0
Number of threads	8	2
Die size		206 mm2
Front-side bus (FSB)		800 MHz
Transistor count		230 million
VID voltage range		1.200V-1.400V
Memory
Max memory channels	2
Maximum memory size	64 GB
Supported memory types	DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V	DDR1, DDR2, DDR3
Graphics
Device ID	0x5912
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.15 GHz
Graphics max frequency	1.15 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	64 GB
Processor graphics	Intel® HD Graphics 630
Graphics interfaces
Number of displays supported	3
Graphics image quality
4K resolution support
Max resolution over DisplayPort	4096x2304@60Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over HDMI 1.4	4096x2304@24Hz
Graphics API support
DirectX	12
OpenGL	4.5
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	FCLGA1151	PLGA775
Thermal Design Power (TDP)	65 Watt	95 Watt
Thermal Solution	PCG 2015C (65W)
Peripherals
Max number of PCIe lanes	16
PCI Express revision	3.0
PCIe configurations	Up to 1x16, 2x8, 1x8+2x4
Scalability	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
FSB parity
Intel® Demand Based Switching
Physical Address Extensions (PAE)		32-bit
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)