EPYC 9745 vs EPYC 9845

AMD

EPYC 9745

128 Cores256 Thrd400 WWMax: 3.7 GHz2024

Popular choices:

VS
AMD

EPYC 9845

160 Cores320 Thrd390 WWMax: 3.7 GHz2024

Popular choices:

Performance Spectrum - CPU

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 9745

2024

Why buy it

  • Costs $1,423 less on MSRP ($12,141 MSRP vs $13,564 MSRP).

Trade-offs

  • Lower PassMark (130,698 vs 152,985).
  • Smaller total L3 cache (256 MB vs 320 MB).

EPYC 9845

2024

Why buy it

  • +17.1% higher PassMark.
  • +25% larger total L3 cache (320 MB vs 256 MB).
  • Draws 390W instead of 400W, a 10W reduction.

Trade-offs

  • 11.7% HIGHER MSRP
    $13,564 MSRPvs$12,141 MSRP

Quick Answers

So, is EPYC 9845 better than EPYC 9745?
Yes. EPYC 9845 is the better overall CPU here. You are getting a 1.0% average FPS lead across 11 shared CPU game tests in our data, 17.1% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.
Which one is better for gaming?
For gaming, the two CPUs are effectively a wash in the available data.
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, EPYC 9845 is the better fit. You are getting 17.1% better PassMark, backed by 160 cores and 320 threads. It also carries the larger cache pool with 25% larger total L3 cache (320 MB vs 256 MB).
Which one is the smarter buy today, not just the cheaper CPU?
EPYC 9845 is the smarter buy today. EPYC 9845 is 11.7% more expensive on MSRP at $13,564 MSRP versus $12,141 MSRP, and it gives you a 1.0% average FPS lead across 11 shared CPU game tests in our data. It is also 4.8% better value on MSRP (11.3 vs 10.8 PassMark/$), 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?
EPYC 9845 is the more future-proof choice for 2026 and beyond. You are getting 25% larger total L3 cache (320 MB vs 256 MB) and more multi-core headroom with 160 cores / 320 threads instead of 128/256. 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.

Path of Exile 2

Path of Exile 2

PresetEPYC 9745EPYC 9845
1080p
low192 FPS192 FPS
medium156 FPS156 FPS
high126 FPS126 FPS
ultra98 FPS98 FPS
1440p
low158 FPS158 FPS
medium124 FPS124 FPS
high96 FPS96 FPS
ultra77 FPS77 FPS
4K
low72 FPS72 FPS
medium60 FPS60 FPS
high47 FPS47 FPS
ultra39 FPS39 FPS
Counter-Strike 2

Counter-Strike 2

PresetEPYC 9745EPYC 9845
1080p
low525 FPS274 FPS
medium450 FPS241 FPS
high358 FPS198 FPS
ultra291 FPS163 FPS
1440p
low431 FPS225 FPS
medium379 FPS202 FPS
high310 FPS171 FPS
ultra245 FPS137 FPS
4K
low267 FPS139 FPS
medium239 FPS128 FPS
high208 FPS115 FPS
ultra172 FPS96 FPS
League of Legends

League of Legends

PresetEPYC 9745EPYC 9845
1080p
low743 FPS743 FPS
medium610 FPS610 FPS
high556 FPS556 FPS
ultra481 FPS481 FPS
1440p
low594 FPS594 FPS
medium494 FPS494 FPS
high450 FPS450 FPS
ultra390 FPS390 FPS
4K
low430 FPS430 FPS
medium335 FPS335 FPS
high298 FPS298 FPS
ultra240 FPS240 FPS
Valorant

Valorant

PresetEPYC 9745EPYC 9845
1080p
low974 FPS958 FPS
medium884 FPS869 FPS
high761 FPS746 FPS
ultra658 FPS646 FPS
1440p
low750 FPS739 FPS
medium656 FPS646 FPS
high561 FPS552 FPS
ultra482 FPS473 FPS
4K
low538 FPS530 FPS
medium481 FPS474 FPS
high422 FPS415 FPS
ultra365 FPS358 FPS

Technical Specifications

Side-by-side comparison of EPYC 9745 and EPYC 9845

AMD

EPYC 9745

The EPYC 9745 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 128 cores and 256 threads. Base frequency is 2.4 GHz, with boost up to 3.7 GHz. L3 cache: 256 MB (total). L2 cache: 1 MB (per core). Built on 3 nm process technology. Socket: SP5. Thermal design power (TDP): 400 Watt. Memory support: DDR5. Passmark benchmark score: 130,698 points. Launch price was $12,141.

AMD

EPYC 9845

The EPYC 9845 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 160 cores and 320 threads. Base frequency is 2.1 GHz, with boost up to 3.7 GHz. L3 cache: 320 MB (total). L2 cache: 1 MB (per core). Built on 3 nm process technology. Socket: SP5. Thermal design power (TDP): 390 Watt. Memory support: DDR5. Passmark benchmark score: 152,985 points. Launch price was $13,564.

Processing Power

The EPYC 9745 packs 128 cores / 256 threads, while the EPYC 9845 offers 160 cores / 320 threads — the EPYC 9845 has 32 more cores. Boost clocks reach 3.7 GHz on the EPYC 9745 versus 3.7 GHz on the EPYC 9845 — identical boost frequencies (base: 2.4 GHz vs 2.1 GHz). Both are built on the Turin (2024) architecture using a 3 nm process. In PassMark, the EPYC 9745 scores 130,698 against the EPYC 9845's 152,985 — a 15.7% lead for the EPYC 9845. L3 cache: 256 MB (total) on the EPYC 9745 vs 320 MB (total) on the EPYC 9845.

FeatureEPYC 9745EPYC 9845
Cores / Threads
128 / 256
160 / 320+25%
Boost Clock
3.7 GHz
3.7 GHz
Base Clock
2.4 GHz+14%
2.1 GHz
L3 Cache
256 MB (total)
320 MB (total)+25%
L2 Cache
1 MB (per core)
1 MB (per core)
Process
3 nm
3 nm
Architecture
Turin (2024)
Turin (2024)
PassMark
130,698
152,985+17%
🧠

Memory & Platform

Both processors use the SP5 socket with PCIe 5.0. Both support up to DDR5-6000 memory speed. Both support up to 6 TB of RAM. Both feature 12-channel memory with ECC support. Both provide 128 PCIe lanes. Chipset compatibility: SP5 (EPYC 9745) and SP5 (EPYC 9845).

FeatureEPYC 9745EPYC 9845
Socket
SP5
SP5
PCIe Generation
PCIe 5.0
PCIe 5.0
Max RAM Speed
DDR5-6000
DDR5-6000
Max RAM Capacity
6 TB
6 TB
RAM Channels
12
12
ECC Support
Yes
Yes
PCIe Lanes
128
128
🔧

Advanced Features

Both support AMD-V, SEV-SNP virtualization. Primary use case: EPYC 9745 targets Data Center / High Density, EPYC 9845 targets Data Center / AI Training. Direct competitor: EPYC 9745 rivals Xeon 6980P; EPYC 9845 rivals Xeon 6972P.

FeatureEPYC 9745EPYC 9845
Integrated GPU
No
No
Virtualization
AMD-V, SEV-SNP
AMD-V, SEV-SNP
Target Use
Data Center / High Density
Data Center / AI Training
💰

Value Analysis

The EPYC 9745 launched at $12141 MSRP, while the EPYC 9845 debuted at $13564. On MSRP ($12141 vs $13564), the EPYC 9745 is $1423 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 9745 delivers 10.8 pts/$ vs 11.3 pts/$ for the EPYC 9845 — making the EPYC 9845 the 4.7% better value option.

FeatureEPYC 9745EPYC 9845
MSRP
$12141-10%
$13564
Performance per Dollar
10.8
11.3+5%
Release Date
2024
2024