Xeon Silver 4309Y vs i5-655K

Place in the ranking	2281	629
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Power efficiency	1.65	10.92
Architecture codename	Clarkdale (2010−2011)	Ice Lake-SP (2021)
Release date	30 May 2010 (14 years ago)	6 April 2021 (3 years ago)

Detailed specifications

Core i5-655K and Xeon Silver 4309Y 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	16
Base clock speed	3.2 GHz	2.8 GHz
Boost clock speed	3.46 GHz	3.6 GHz
Bus rate	2.5 GT/s	no data
L1 cache	64 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	1 MB (per core)
L3 cache	4 MB (shared)	12 MB (shared)
Chip lithography	32 nm	10 nm
Die size	81 mm²	no data
Maximum core temperature	73 °C	no data
Maximum case temperature (TCase)	no data	76 °C
Number of transistors	382 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	+	-

Compatibility

Information on Core i5-655K and Xeon Silver 4309Y 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	2
Socket	FCLGA1156	FCLGA4189
Power consumption (TDP)	73 Watt	105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-655K and Xeon Silver 4309Y. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	1.0	2.0
Hyper-Threading Technology	+	+
TSX	-	+
Idle States	+	no data
Demand Based Switching	-	no data
PAE	36 Bit	no data
FDI	+	no data
Deep Learning Boost	-	+

Security technologies

Core i5-655K and Xeon Silver 4309Y technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
SGX	no data	Yes with Intel® SPS

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-655K and Xeon Silver 4309Y are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-655K and Xeon Silver 4309Y. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-2667
Maximum memory size	16.38 GB	6 TB
Max memory channels	2	8
Maximum memory bandwidth	21 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Previous Generation Intel® Processors	no data
Clear Video HD	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-655K and Xeon Silver 4309Y integrated GPUs.

Number of displays supported

no data

Peripherals

Specifications and connection of peripherals supported by Core i5-655K and Xeon Silver 4309Y.

PCIe version	2.0	4.0
PCI Express lanes	16	64

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.

i5-655K 1.32

Xeon Silver 4309Y 12.57
+852%

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.

i5-655K 2017

Xeon Silver 4309Y 19237
+854%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i5-655K 537

Xeon Silver 4309Y 1413
+163%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i5-655K 1247

Xeon Silver 4309Y 7365
+491%

Gaming performance

Pros & cons summary

Performance score	1.32	12.57
Recency	30 May 2010	6 April 2021
Physical cores	2	8
Threads	4	16
Chip lithography	32 nm	10 nm
Power consumption (TDP)	73 Watt	105 Watt

i5-655K has 43.8% lower power consumption.

Xeon Silver 4309Y, on the other hand, has a 852.3% higher aggregate performance score, an age advantage of 10 years, 300% more physical cores and 300% more threads, and a 220% more advanced lithography process.

The Xeon Silver 4309Y is our recommended choice as it beats the Core i5-655K in performance tests.

Note that Core i5-655K is a desktop processor while Xeon Silver 4309Y is a server/workstation one.

Should you still have questions on choice between Core i5-655K and Xeon Silver 4309Y, ask them in Comments section, and we shall answer.