Intel Core i7-11700K vs Intel Core i7-5775C

Comparative analysis of Intel Core i7-11700K and Intel Core i7-5775C 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, 3DMark Fire Strike - Physics Score, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 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 i7-11700K

Intel Core i7-5775C

Differences

Reasons to consider the Intel Core i7-11700K

CPU is newer: launch date 5 year(s) 9 month(s) later
4 more cores, run more applications at once: 8 vs 4
8 more threads: 16 vs 8
Around 35% higher clock speed: 5.00 GHz vs 3.70 GHz
2x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later
2.7x more L3 cache, more data can be stored in the L3 cache for quick access later
4x more maximum memory size: 128 GB vs 32 GB
Around 49% better performance in PassMark - Single thread mark: 3400 vs 2282
3.2x better performance in PassMark - CPU mark: 24551 vs 7669

Specifications (specs)
Launch date	16 Mar 2021 vs 2 June 2015
Number of cores	8 vs 4
Number of threads	16 vs 8
Maximum frequency	5.00 GHz vs 3.70 GHz
L1 cache	512 KB vs 256 KB
L2 cache	2 MB vs 1 MB
L3 cache	16 MB vs 6 MB
Maximum memory size	128 GB vs 32 GB
Benchmarks
PassMark - Single thread mark	3400 vs 2282
PassMark - CPU mark	24551 vs 7669

Reasons to consider the Intel Core i7-5775C

Around 92% lower typical power consumption: 65 Watt vs 125 Watt
Around 36% better performance in 3DMark Fire Strike - Physics Score: 11035 vs 8127

Specifications (specs)
Thermal Design Power (TDP)	65 Watt vs 125 Watt
Benchmarks
3DMark Fire Strike - Physics Score	11035 vs 8127

Compare benchmarks

CPU 1: Intel Core i7-11700K
CPU 2: Intel Core i7-5775C

PassMark - Single thread mark

CPU 1

CPU 2

3400

2282

PassMark - CPU mark

CPU 1

CPU 2

24551

7669

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

8127

11035

Name	Intel Core i7-11700K	Intel Core i7-5775C
PassMark - Single thread mark	3400	2282
PassMark - CPU mark	24551	7669
3DMark Fire Strike - Physics Score	8127	11035
Geekbench 4 - Single Core		1055
Geekbench 4 - Multi-Core		4229
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		21.742
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		195.658
CompuBench 1.5 Desktop - T-Rex (Frames/s)		1.01
CompuBench 1.5 Desktop - Video Composition (Frames/s)		6.638
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		55.701
GFXBench 4.0 - Car Chase Offscreen (Frames)		2894
GFXBench 4.0 - Manhattan (Frames)		6083
GFXBench 4.0 - T-Rex (Frames)		9954
GFXBench 4.0 - Car Chase Offscreen (Fps)		2894
GFXBench 4.0 - Manhattan (Fps)		6083
GFXBench 4.0 - T-Rex (Fps)		9954

Compare specifications (specs)

	Intel Core i7-11700K	Intel Core i7-5775C
Essentials
Architecture codename	Rocket Lake	Broadwell
Launch date	16 Mar 2021	2 June 2015
Launch price (MSRP)	$399 - $409	$366
Place in performance rating	493	495
Processor Number	i7-11700K	i7-5775C
Series	11th Generation Intel Core i7 Processors	5th Generation Intel® Core™ i7 Processors
Status	Launched	Launched
Vertical segment	Desktop	Desktop
Price now		$449.99
Value for money (0-100)		7.20
Performance
64 bit support
Base frequency	3.60 GHz	3.30 GHz
Bus Speed	8 GT/s	5 GT/s DMI2
L1 cache	512 KB	256 KB
L2 cache	2 MB	1 MB
L3 cache	16 MB	6 MB
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	100°C
Maximum frequency	5.00 GHz	3.70 GHz
Number of cores	8	4
Number of threads	16	8
Memory
Max memory channels	2	2
Maximum memory bandwidth	50 GB/s	25.6 GB/s
Maximum memory size	128 GB	32 GB
Supported memory types	DDR4-3200	DDR3L-1333/1600 @ 1.5V
Graphics
Device ID	0x4C8A	0x1622
Execution Units	32
Graphics base frequency	350 MHz	300 MHz
Graphics max dynamic frequency	1.30 GHz	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	32 GB
Processor graphics	Intel UHD Graphics 750	Intel® Iris® Pro Graphics 6200
eDRAM		128 MB
Graphics max frequency		1.15 GHz
Intel® Flexible Display Interface (Intel® FDI)
Graphics interfaces
Number of displays supported	3	3
DisplayPort
DVI
eDP
HDMI
VGA
Wireless Display (WiDi) support
Graphics image quality
4K resolution support
Max resolution over DisplayPort	5120 x 3200 @60Hz	3840x2160@60Hz
Max resolution over eDP	5120 x 3200 @60Hz	3840x2160@60Hz
Max resolution over HDMI 1.4		4096x2304@24Hz
Max resolution over VGA		1920x1200@60Hz
Graphics API support
DirectX	12.1	11.2
OpenGL	4.5	4.3
Compatibility
Configurable TDP-down	95 Watt	37 W
Configurable TDP-down Frequency	3.10 GHz	2.20 GHz
Max number of CPUs in a configuration	1	1
Package Size	37.5 mm x 37.5 mm	37.5mm x 37.5mm
Sockets supported	FCLGA1200	FCLGA1150
Thermal Design Power (TDP)	125 Watt	65 Watt
Thermal Solution	PCG 2019A	PCA 2013D
Low Halogen Options Available
Peripherals
Max number of PCIe lanes	20	16
PCI Express revision	4.0	3.0
PCIe configurations	Up to 1x16+1x4, 2x8+1x4, 1x8+3x4	Up to 1x16, 2x8, 1x8+2x4
Scalability	1S Only	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Anti-Theft technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel SSE4.1, Intel SSE4.2, Intel AVX2, Intel AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® Thermal Velocity Boost
Intel® Turbo Boost technology
Thermal Monitoring
4G WiMAX Wireless
Flexible Display interface (FDI)
Intel® Advanced Vector Extensions (AVX)
Intel® TSX-NI
Intel® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
AMD Virtualization (AMD-V™)
Intel® Virtualization Technology for Itanium (VT-i)