Ultra 7 256V vs Pentium Gold G6405

Place in the ranking	1705	631
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Power efficiency	4.36	67.69
Architecture codename	Comet Lake-R (2021)	Lunar Lake (2024)
Release date	16 March 2021 (3 years ago)	24 September 2024 (less than a year ago)
Launch price (MSRP)	$64	no data

Detailed specifications

Pentium Gold G6405 and Core Ultra 7 256V basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	2 (Dual-core)	8 (Octa-Core)
Threads	4	8
Base clock speed	4.1 GHz	2.2 GHz
Boost clock speed	4.1 GHz	4.8 GHz
Bus rate	8 GT/s	37 MHz
L1 cache	64 KB (per core)	192 KB (per core)
L2 cache	256 KB (per core)	2.5 MB (per core)
L3 cache	4 MB (shared)	12 MB (shared)
Chip lithography	14 nm	3 nm
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Pentium Gold G6405 and Core Ultra 7 256V compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FCLGA1200	Intel BGA 2833
Power consumption (TDP)	15 Watt	17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium Gold G6405 and Core Ultra 7 256V. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	+	no data
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Turbo Boost Max 3.0	-	no data

Security technologies

Pentium Gold G6405 and Core Ultra 7 256V technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data
Secure Key	+	no data
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium Gold G6405 and Core Ultra 7 256V are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium Gold G6405 and Core Ultra 7 256V. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR5
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	41.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics 610	Arc 140V
Max video memory	64 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.05 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Pentium Gold G6405 and Core Ultra 7 256V integrated GPUs.

Number of displays supported

no data

Graphics image quality

Maximum display resolutions supported by Pentium Gold G6405 and Core Ultra 7 256V integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2160@30Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data

Graphics API support

APIs supported by Pentium Gold G6405 and Core Ultra 7 256V integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Pentium Gold G6405 and Core Ultra 7 256V.

PCIe version	3.0	5.0
PCI Express lanes	16	4

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Pentium Gold G6405 2.72

Ultra 7 256V 12.39
+356%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Pentium Gold G6405 4244

Ultra 7 256V 19320
+355%

Gaming performance

Pros & cons summary

Performance score	2.72	12.39
Recency	16 March 2021	24 September 2024
Physical cores	2	8
Threads	4	8
Chip lithography	14 nm	3 nm
Power consumption (TDP)	15 Watt	17 Watt

Pentium Gold G6405 has 13.3% lower power consumption.

Ultra 7 256V, on the other hand, has a 355.5% higher aggregate performance score, an age advantage of 3 years, 300% more physical cores and 100% more threads, and a 366.7% more advanced lithography process.

The Core Ultra 7 256V is our recommended choice as it beats the Pentium Gold G6405 in performance tests.

Note that Pentium Gold G6405 is a desktop processor while Core Ultra 7 256V is a notebook one.

Should you still have questions on choice between Pentium Gold G6405 and Core Ultra 7 256V, ask them in Comments section, and we shall answer.