Ryzen 5 8645HS vs Xeon E5-4640 v4

Ryzen 5 8645HS vs Xeon E5-4640 v4 Performance Spectrum

Ryzen 5 8645HS

6 / 12

22,257

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen 9 9900X3D

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

Xeon E5-4640 v4

12 / 24

22,559

+1.4%

About PassMark

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Ryzen 5 8645HS vs Xeon E5-4640 v4 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Ryzen 5 8645HS vs Xeon E5-4640 v4: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Ryzen 5 8645HS

2023

Why buy it

✅Better for gaming: +21.3% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 45W instead of 105W, a 60W reduction.
✅Newer platform on FP8 with DDR5 support instead of LGA2011 and DDR4.
✅Integrated graphics onboard with Radeon 760M, while Xeon E5-4640 v4 needs a discrete GPU.

Trade-offs

❌Lower PassMark (22,257 vs 22,559).
❌Smaller total L3 cache (16 MB vs 30 MB).
❌Less compelling for workstation-style loads than Xeon E5-4640 v4, which brings 12 cores / 24 threads and 40 PCIe lanes.

Xeon E5-4640 v4

2016

Why buy it

✅+1.4% higher PassMark.
✅+87.5% larger total L3 cache (30 MB vs 16 MB).
✅Better for workstations and heavier parallel workloads: 12 cores / 24 threads, plus 40 PCIe lanes vs 20.
✅100% more PCIe lanes (40 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 8645HS across 50 shared CPU benchmark tests.
❌Launch MSRP is still $2,837 MSRP, while Ryzen 5 8645HS mostly shows up through inconsistent older-market listings.
❌133.3% higher power demand at 105W vs 45W.
❌Older platform position on LGA2011 with DDR4, while Ryzen 5 8645HS moves to FP8 and DDR5.
❌No integrated graphics, while Ryzen 5 8645HS can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 5 8645HS better than Xeon E5-4640 v4?

Not really, because they are built for different jobs. Xeon E5-4640 v4 makes more sense for workstation-style multi-core throughput, while Ryzen 5 8645HS is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Xeon E5-4640 v4 is the stronger fit. You are getting 1.4% better PassMark, backed by 12 cores and 24 threads. It also has the larger cache pool with 87.5% larger total L3 cache (30 MB vs 16 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Ryzen 5 8645HS is still the faster CPU overall, but Xeon E5-4640 v4 is easier to justify if budget matters more than peak performance. Ryzen 5 8645HS comes in at an unclear MSRP at unclear MSRP versus $2,837 MSRP, and it still gives you a 21.3% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon E5-4640 v4 is still stronger for heavier multi-core work with 1.4% better PassMark. Xeon E5-4640 v4 is also 100.0% better value on MSRP (8.0 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

Which one is more future-proof for 2026 and beyond?

Ryzen 5 8645HS makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2016), a healthier platform with FP8 and DDR5 instead of LGA2011, and AVX-512 support for heavier modern compute workloads. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 5 8645HS vs Xeon E5-4640 v4 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Ryzen 5 8645HS

The Ryzen 5 8645HS is manufactured by AMD. It was released in 6 December 2023 (1 year ago). It is based on the Hawk Point-HS (Zen 4) (2023−2024) architecture. It features 6 cores and 12 threads. Base frequency is 4.3 GHz, with boost up to 5 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 45 Watt. Memory support: DDR5. Passmark benchmark score: 22,257 points. Launch price was $299.

Xeon E5-4640 v4

The Xeon E5-4640 v4 is manufactured by Intel. It was released in 20 June 2016 (9 years ago). It is based on the Broadwell (2015−2019) architecture. It features 12 cores and 24 threads. Base frequency is 2.1 GHz, with boost up to 2.6 GHz. L3 cache: 30 MB. L2 cache: 3 MB. Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 22,559 points. Launch price was $2,837.

⚡

Processing Power

The Ryzen 5 8645HS packs 6 cores / 12 threads, while the Xeon E5-4640 v4 offers 12 cores / 24 threads — the Xeon E5-4640 v4 has 6 more cores. Boost clocks reach 5 GHz on the Ryzen 5 8645HS versus 2.6 GHz on the Xeon E5-4640 v4 — a 63.2% clock advantage for the Ryzen 5 8645HS (base: 4.3 GHz vs 2.1 GHz). The Ryzen 5 8645HS uses the Hawk Point-HS (Zen 4) (2023−2024) architecture (4 nm), while the Xeon E5-4640 v4 uses Broadwell (2015−2019) (14 nm). In PassMark, the Ryzen 5 8645HS scores 22,257 against the Xeon E5-4640 v4's 22,559 — a 1.3% lead for the Xeon E5-4640 v4. L3 cache: 16 MB (total) on the Ryzen 5 8645HS vs 30 MB on the Xeon E5-4640 v4.

Feature	Ryzen 5 8645HS	Xeon E5-4640 v4
Cores / Threads	6 / 12	12 / 24+100%
Boost Clock	5 GHz+92%	2.6 GHz
Base Clock	4.3 GHz+105%	2.1 GHz
L3 Cache	16 MB (total)	30 MB+88%
L2 Cache	1 MB (per core)	3 MB+200%
Process	4 nm-71%	14 nm
Architecture	Hawk Point-HS (Zen 4) (2023−2024)	Broadwell (2015−2019)
PassMark	22,257	22,559+1%
Cinebench R23 Multi	13,316	—
Geekbench 6 Single	2,574	—
Geekbench 6 Multi	10,675	—

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Memory & Platform

The Ryzen 5 8645HS uses the FP8 socket (PCIe 4.0), while the Xeon E5-4640 v4 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches LPDDR5x-7500 on the Ryzen 5 8645HS versus DDR4 2133 MHz on the Xeon E5-4640 v4 — the Ryzen 5 8645HS supports 251.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon E5-4640 v4 supports up to 1.5 TB of RAM compared to 256 GB — 500% more capacity for professional workloads. Memory channels: 2 (Ryzen 5 8645HS) vs 4 (Xeon E5-4640 v4). PCIe lanes: 20 (Ryzen 5 8645HS) vs 40 (Xeon E5-4640 v4) — the Xeon E5-4640 v4 offers 20 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Ryzen 5 8645HS) and Intel C612 (Xeon E5-4640 v4).

Feature	Ryzen 5 8645HS	Xeon E5-4640 v4
Socket	FP8	LGA2011
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	LPDDR5x-7500+252%	DDR4 2133 MHz
Max RAM Capacity	256 GB	1.5 TB+500%
RAM Channels	2	4+100%
ECC Support	Yes	Yes
PCIe Lanes	20	40+100%

🔧

Advanced Features

Neither processor supports overclocking. Only the Ryzen 5 8645HS supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (SVM) (Ryzen 5 8645HS) vs true (Xeon E5-4640 v4). The Ryzen 5 8645HS includes integrated graphics (Radeon 760M), while the Xeon E5-4640 v4 requires a dedicated GPU. Primary use case: Ryzen 5 8645HS targets Gaming, Xeon E5-4640 v4 targets Server. Direct competitor: Ryzen 5 8645HS rivals Core i5-13500H.