EPYC 4565P vs Xeon 6521P

CPU

GPU

EPYC 4565P

16 Cores32 Thrd170 WWMax: 5.7 GHz2025

Popular choices:

•••••••••

Xeon 6521P

24 Cores48 Thrd225 WWMax: 4.1 GHz2025

Popular choices:

•••••••••

Performance Spectrum - CPU

EPYC 4565P

16 / 32

64,068

0.0%

Ryzen 7 7700X

Ryzen 7 8840HX

Ryzen Threadripper PRO 7945WX

Ryzen Threadripper PRO 9945WX

Ryzen Threadripper 3990X

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

Ryzen Threadripper PRO 7985WX

Xeon 6521P

24 / 48

64,761

+1.1%

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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

EPYC 4565P

2025

Why buy it

✅Better for gaming: +22.8% higher average FPS across 46 shared CPU benchmark tests.
✅Draws 170W instead of 225W, a 55W reduction.
✅Integrated graphics onboard with AMD Radeon Graphics, while Xeon 6521P needs a discrete GPU.

Trade-offs

❌Lower PassMark (64,068 vs 64,761).
❌Smaller total L3 cache (64 MB vs 144 MB).
❌Lower PassMark per dollar, at 23.5 vs 51.8 PassMark/$ ($2,730 MSRP vs $1,250 MSRP).

Xeon 6521P

2025

Why buy it

✅+1.1% higher PassMark.
✅+125% larger total L3 cache (144 MB vs 64 MB).
✅Costs $1,480 less on MSRP ($1,250 MSRP vs $2,730 MSRP).
✅Delivers 120.8% more PassMark for each dollar spent, at 51.8 vs 23.5 PassMark/$ ($1,250 MSRP vs $2,730 MSRP).
✅385.7% more PCIe lanes (136 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 4565P across 46 shared CPU benchmark tests.
❌32.4% higher power demand at 225W vs 170W.
❌No integrated graphics, while EPYC 4565P can still boot and troubleshoot without a discrete GPU.

EPYC 4565P

2025

Xeon 6521P

2025

Why buy it

✅Better for gaming: +22.8% higher average FPS across 46 shared CPU benchmark tests.
✅Draws 170W instead of 225W, a 55W reduction.
✅Integrated graphics onboard with AMD Radeon Graphics, while Xeon 6521P needs a discrete GPU.

Why buy it

✅+1.1% higher PassMark.
✅+125% larger total L3 cache (144 MB vs 64 MB).
✅Costs $1,480 less on MSRP ($1,250 MSRP vs $2,730 MSRP).
✅Delivers 120.8% more PassMark for each dollar spent, at 51.8 vs 23.5 PassMark/$ ($1,250 MSRP vs $2,730 MSRP).
✅385.7% more PCIe lanes (136 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (64,068 vs 64,761).
❌Smaller total L3 cache (64 MB vs 144 MB).
❌Lower PassMark per dollar, at 23.5 vs 51.8 PassMark/$ ($2,730 MSRP vs $1,250 MSRP).

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 4565P across 46 shared CPU benchmark tests.
❌32.4% higher power demand at 225W vs 170W.
❌No integrated graphics, while EPYC 4565P can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Xeon 6521P better than EPYC 4565P?

It depends on what matters more to you. For gaming, EPYC 4565P is ahead with a 22.8% average FPS lead across 46 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon 6521P pulls ahead with 1.1% better PassMark. Xeon 6521P also has the bigger cache pool with 125% larger total L3 cache (144 MB vs 64 MB).

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

For streaming, content creation, and heavier multitasking, Xeon 6521P is the better fit. You are getting 1.1% better PassMark, backed by 24 cores and 48 threads. It also carries the larger cache pool with 125% larger total L3 cache (144 MB vs 64 MB).

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

Xeon 6521P is the smarter buy today. Xeon 6521P is $1,480 cheaper on MSRP at $1,250 MSRP versus $2,730 MSRP, and it gives you 1.1% better PassMark. The trade-off is that EPYC 4565P is still the better pure gaming CPU with a 22.8% average FPS lead across 46 shared CPU game tests in our data. It is also 120.8% better value on MSRP (51.8 vs 23.5 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Xeon 6521P is the more future-proof choice for 2026 and beyond. You are getting 125% larger total L3 cache (144 MB vs 64 MB) and more multi-core headroom with 24 cores / 48 threads instead of 16/32. That extra cache should hold up really well in CPU-limited games and high-refresh builds.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

EPYC 4565P Benchmark Check

Xeon 6521P Benchmark Check

Path of Exile 2

Preset	EPYC 4565P	Xeon 6521P
1080p
low	298 FPS	188 FPS
medium	271 FPS	165 FPS
high	224 FPS	131 FPS
ultra	188 FPS	106 FPS
1440p
low	273 FPS	155 FPS
medium	225 FPS	131 FPS
high	175 FPS	100 FPS
ultra	154 FPS	82 FPS
4K
low	188 FPS	70 FPS
medium	154 FPS	63 FPS
high	119 FPS	49 FPS
ultra	105 FPS	40 FPS

Open EPYC 4565P Open Xeon 6521P

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 4565P	Xeon 6521P
1080p
low	687 FPS	585 FPS
medium	589 FPS	517 FPS
high	440 FPS	428 FPS
ultra	378 FPS	376 FPS
1440p
low	576 FPS	489 FPS
medium	511 FPS	437 FPS
high	395 FPS	372 FPS
ultra	314 FPS	309 FPS
4K
low	325 FPS	304 FPS
medium	292 FPS	274 FPS
high	257 FPS	250 FPS
ultra	220 FPS	222 FPS

Open EPYC 4565P Open Xeon 6521P

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 4565P	Xeon 6521P
1080p
low	891 FPS	900 FPS
medium	707 FPS	829 FPS
high	624 FPS	768 FPS
ultra	535 FPS	677 FPS
1440p
low	718 FPS	770 FPS
medium	570 FPS	706 FPS
high	492 FPS	650 FPS
ultra	418 FPS	581 FPS
4K
low	514 FPS	510 FPS
medium	429 FPS	429 FPS
high	385 FPS	383 FPS
ultra	321 FPS	318 FPS

Open EPYC 4565P Open Xeon 6521P

League of Legends

League of Legends

Valorant

Preset	EPYC 4565P	Xeon 6521P
1080p
low	1106 FPS	983 FPS
medium	991 FPS	884 FPS
high	867 FPS	764 FPS
ultra	781 FPS	663 FPS
1440p
low	860 FPS	803 FPS
medium	759 FPS	699 FPS
high	664 FPS	601 FPS
ultra	576 FPS	517 FPS
4K
low	632 FPS	579 FPS
medium	562 FPS	520 FPS
high	496 FPS	461 FPS
ultra	429 FPS	396 FPS

Open EPYC 4565P Open Xeon 6521P

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 4565P and Xeon 6521P

EPYC 4565P

The EPYC 4565P is manufactured by AMD. It was released in 13 May 2025 (less than a year ago). It is based on the Grado (2025) architecture. It features 16 cores and 32 threads. Base frequency is 4.3 GHz, with boost up to 5.7 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 170 Watt. Memory support: DDR5. Passmark benchmark score: 64,068 points. Launch price was $589.

Xeon 6521P

The Xeon 6521P is manufactured by Intel. It was released in 24 February 2025 (less than a year ago). It is based on the Granite Rapids (2024−2025) architecture. It features 24 cores and 48 threads. Base frequency is 2.6 GHz, with boost up to 4.1 GHz. L3 cache: 144 MB (total). L2 cache: 2 MB (per core). Built on Intel 3 nm process technology. Socket: LGA4710. Thermal design power (TDP): 225 Watt. Memory support: DDR5(6400MT/s). Passmark benchmark score: 64,761 points. Launch price was $1,250.

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Processing Power

The EPYC 4565P packs 16 cores / 32 threads, while the Xeon 6521P offers 24 cores / 48 threads — the Xeon 6521P has 8 more cores. Boost clocks reach 5.7 GHz on the EPYC 4565P versus 4.1 GHz on the Xeon 6521P — a 32.7% clock advantage for the EPYC 4565P (base: 4.3 GHz vs 2.6 GHz). The EPYC 4565P uses the Grado (2025) architecture (4 nm), while the Xeon 6521P uses Granite Rapids (2024−2025) (Intel 3 nm). In PassMark, the EPYC 4565P scores 64,068 against the Xeon 6521P's 64,761 — a 1.1% lead for the Xeon 6521P. L3 cache: 64 MB (total) on the EPYC 4565P vs 144 MB (total) on the Xeon 6521P.

Feature	EPYC 4565P	Xeon 6521P
Cores / Threads	16 / 32	24 / 48+50%
Boost Clock	5.7 GHz+39%	4.1 GHz
Base Clock	4.3 GHz+65%	2.6 GHz
L3 Cache	64 MB (total)	144 MB (total)+125%
L2 Cache	1 MB (per core)	2 MB (per core)+100%
Process	4 nm	Intel 3 nm-25%
Architecture	Grado (2025)	Granite Rapids (2024−2025)
PassMark	64,068	64,761+1%

🧠

Memory & Platform

The EPYC 4565P uses the AM5 socket (PCIe 4.0), while the Xeon 6521P uses LGA4710 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 5600 on the EPYC 4565P versus 6400 on the Xeon 6521P — the Xeon 6521P supports 13.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon 6521P supports up to 4096 of RAM compared to 192 — 182.1% more capacity for professional workloads. Memory channels: 2 (EPYC 4565P) vs 8 (Xeon 6521P). PCIe lanes: 28 (EPYC 4565P) vs 136 (Xeon 6521P) — the Xeon 6521P offers 108 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM5 (EPYC 4565P) and C741 (Xeon 6521P).

Feature	EPYC 4565P	Xeon 6521P
Socket	AM5	LGA4710
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	5600	6400+14%
Max RAM Capacity	192	4096+2033%
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	28	136+386%

🔧

Advanced Features

Only the EPYC 4565P has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, AMD-V (EPYC 4565P) vs VT-x, VT-d (Xeon 6521P). The EPYC 4565P includes integrated graphics (AMD Radeon Graphics), while the Xeon 6521P requires a dedicated GPU. Direct competitor: EPYC 4565P rivals Core Ultra 9 285K; Xeon 6521P rivals EPYC 9354.

Feature	EPYC 4565P	Xeon 6521P
Integrated GPU	Yes	No
IGPU Model	AMD Radeon Graphics	None
Unlocked	Yes	No
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d, AMD-V	VT-x, VT-d

💰

Value Analysis

The EPYC 4565P launched at $2730 MSRP, while the Xeon 6521P debuted at $1250. On MSRP ($2730 vs $1250), the Xeon 6521P is $1480 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 4565P delivers 23.5 pts/$ vs 51.8 pts/$ for the Xeon 6521P — making the Xeon 6521P the 75.3% better value option.