As organizations scale modern workloads — from high-throughput databases and network/security appliances to real-time analytics and AI/ML inference — network and block storage performance can quickly become a bottleneck. Standard virtual machines often struggle to balance compute efficiency with the high-volume data-transfer demands of these applications.
At Google Cloud Next ‘26, we announced C4N in preview, our first network- and block-storage-optimized Google Compute Engine instance that’s purpose-built to eliminate I/O bottlenecks for demanding enterprise applications, and today, it is generally available. Built on Google's custom-designed Titanium offload architecture, C4N instances offload network and storage tasks to dedicated hardware to unlock incredible performance and compute efficiency. C4N offers up to 400 Gbps of network bandwidth and a market-leading 95 million packets per second (MPPS) — nearly 33% higher network bandwidth per vCPU and 224% faster packet processing performance than comparable Intel-based offerings at other hyperscalers. This performance makes C4N a great fit for network-intensive applications such as virtual appliances (e.g., next-gen firewalls, virtual routers, load balancers, DDoS mitigation), large-scale data analytics, telco applications (5G UPF), distributed compute and CPU-based AI/ML workloads.
Paired with Hyperdisk Extreme, our high-performance block storage, C4N also delivers Compute Engine’s highest block storage performance, scaling up to 25 GiB/s of storage bandwidth and 1M IOPS **— nearly 33% higher storage bandwidth and 39% more IOPS per vCPU versus comparable Intel-based offerings, **making them a strong choice for large-scale databases, high-performance file systems, in-memory databases, and other workloads that benefit from high block storage performance.
Engineered specifically to deliver predictable, high-throughput I/O performance for networking, packets-per-second-bound and storage-optimized applications, C4N allows customers to scale network, storage, and compute resources more precisely to meet specific workload requirements, delivering significant TCO benefits by eliminating the need to over-provision resources just to meet I/O demands.
C4N is powered by 5th Gen Intel® Xeon® Scalable processors (code-named Emerald Rapids).
“Google Cloud’s introduction of C4N highlights how infrastructure innovation and a strong silicon foundation can help customers address increasingly data-intensive workloads. With Intel Xeon and Custom Infrastructure Processing Unit (IPU), C4N delivers the performance and efficiency needed for demanding network optimized environments.” – Srini Krishna, Intel Fellow, Data Center products, Intel
Our network-optimized C4N instances are designed to deliver predictable, high-performance I/O at scale. By providing consistent bandwidth, packet-processing performance (PPS), and IOPS scaling across all VM shapes and sizes, C4N helps ensure your most demanding data workloads run reliably. To achieve this, we have built deep resiliency into every layer of our infrastructure — from the host and fabric layers to redundant top-of-rack (ToR) switches — delivering continuous performance for your applications.
Compared to general-purpose C4 VMs, the network-optimized C4N delivers significant performance gains across both network and block storage vectors.
Next-generation network performance
Superior VM-to-VM network bandwidth: Achieves up to 400 Gbps of VM-to-VM network bandwidth (an almost 4x increase in BW-per-vCPU over standard C4) and supports up to 50 Gbps single-flow bandwidth between C4N instances routed within the same VPC network. This provides non-blocking data delivery for high-throughput single-stream and multi-stream applications.
**Enhanced VM-to-internet performance: **Benefits from an 8x increase in internet egress network bandwidth, reaching up to 200 Gbps. It also features a nearly 32x increase in internet egress packet processing performance, scaling up to 48 MPPS.
**Optimized I/O for smaller shapes: **Keeps your cloud bill lean by delivering up to 25–50 Gbps of network bandwidth specifically for 2–16 vCPU shapes, great for accelerating I/O-bound tasks without needing to over-provision compute. Furthermore, these smaller shapes introduce predictable, steady-state baseline bandwidth limits to provide consistent performance at a lower cost.
Enhanced out-of-the-box networking: gVNIC interfaces on C4N now start with more Tx/Rx queues by default, scaling with vCPUs up to a maximum of 64 (in comparison to 16 queues on C4/C4D).
**Shorter Google Cloud Storage transfer times: **C4N VMs now offer up to a 2x increase in bandwidth to retrieve and store large volumes of data from Cloud Storage, boosting performance for analytics, AI/ML, and backup workloads.
**Better yet, this **performance is available out of the box, with no add-ons. Designed for high performance from the get-go, C4N offers maximum performance without needing to purchase or configure premium add-ons like Tier_1 networking.
Dynamic storage performance with Hyperdisk
The C4N instance family, when combined with Hyperdisk, can help dynamically tune storage performance, latency, and throughput independently of your compute instance sizing to deliver high block storage performance for your applications. C4N supports the complete Hyperdisk portfolio, including Hyperdisk Balanced, Balanced High Availability, Extreme, Throughput, and ML block storage options.
Hyperdisk Extreme: C4N with Hyperdisk Extreme provides low-latency, high-speed data access for modern databases and enterprise AI applications, with up to 25 GiB/s of block storage throughput and nearly 1M IOPS, a 2x increase in storage performance over C4. Also, exclusive to network optimized machine series such as C4N, we now offer Hyperdisk Extreme across all machine sizes — even down to the smallest 2 vCPU sizes.
Hyperdisk Balanced: Delivering the highest throughput and IOPS for general-purpose block storage in the Compute Engine portfolio, Hyperdisk Balanced on C4N scales up to 20 GiB/s of block storage throughput and nearly 640K IOPS. This makes it a highly cost-effective option for running storage-intensive applications at scale.
Together, C4N’s network and storage optimizations combine for tremendous impact in real-world applications:
Web serving: Up to 1.5x additional Nginx requests per second compared to C4 for typical web request sizes (100–300Kb), significantly boosting capacity for network-bound web applications
Databases: Up to 45% better queries per second (QPS) for MySQL when data resides primarily on disk than equivalent C4 VMs
Industry leaders are already proving that workload-optimized infrastructure is the engine for transformation. Here is how our customers are leveraging the network-optimized power of C4N:
“5G Core workloads are inherently network-heavy, demanding high-throughput packet processing and deterministic latency that standard public cloud instances often struggle to maintain at scale. By leveraging the Google Cloud C4N compute family, we’ve found the ideal engine for Ericsson On-Demand. The C4N’s architectural focus on network-optimized compute allows our 5G Core-as-a-Service to reach unprecedented throughput levels — like our recent 1 Tbps milestone — while maintaining the carrier-grade reliability our customers expect. It’s no longer just about cloud-native; with C4N, we are delivering network-native performance in a public cloud environment.” - Eric Parsons, VP, Head of Ericsson On-Demand, Ericsson
“Teradata's Autonomous Knowledge Platform unifies production-grade AI, analytics, and data into a single integrated system — providing the context, governance, and performance backbone autonomous AI demands at scale. Customers rely on Teradata to run mission-critical, highly I/O-intensive workloads where performance and cost control directly determine value.
Google Cloud C4N instances are well suited for these demanding workloads, delivering strong price-performance and supporting more efficient, optimized deployments. By leveraging C4N on Google Cloud, Teradata Cloud can help customers accelerate from insight to action — scaling enterprise intelligence with confidence and driving greater impact from their data and AI investments” - Kevin Dougherty, Senior Director of Product Management, Core Platform, Teradata
“With the next-generation network and storage bandwidth of C4N VMs, Google Cloud NetApp Volumes will unlock new levels of performance to support our customers’ most demanding AI workloads. By collaborating to extend Google Cloud NetApp Volumes support for the C4N VM family, Google and NetApp are deepening our partnership to address real customer challenges. Together, we’re delivering data-in-place AI and analytics solutions that simplify architectures, maximize performance, and turn data into impact.” - Pravjit Tiwana, Senior Vice President and General Manager of Cloud Storage and Services, NetApp
"Most Compute Engine instances ship with a single high-speed network interface. The new C4N doubles the bandwidth potential with two 200 GbE interfaces. That architectural shift is significant. It means we can dedicate both networks entirely to storage traffic, doubling the available bandwidth for data-intensive workloads, and achieving 2x storage performance over the previous generation. The C4N was announced just weeks ago and is already active in Sycomp's test environment, ensuring our customers can evaluate the latest GCP capabilities without delay. Google Cloud’s published maximum hyperdisk balanced performance for the C4N is 20 GiB/s. In our tests, with three storage servers Sycomp achieved 58.5 GiB/s on read and 58.6 GiB/s on write, with ten C4N storage servers we achieved 195 GiB/s read and write — 97% of the theoretical ceiling with zero platform-specific tuning. That's a strong starting point, and there's measurable room to close the remaining gap through configuration work we can finetune. ** The C4N isn't just faster — it changes the price-performance equation for storage workloads on Google Cloud.**" - Scott Fadden, Senior HPC Solutions Architect, Sycomp
“At ClipperDB Technologies, our mission is to drive down the cost and drive up the performance of large-scale Spark analytics. Google Cloud’s C4N instances are the perfect compute engine for our fully native architecture. C4N’s substantial increase in network bandwidth per vCPU combined with large memory configurations and 5th Generation Intel Xeon processors align with ClipperDB’s precise parallel cloud-store prefetching and caching, concurrent dataflow native batch pipelines, streaming no-copy exchange, and cloud store checkpoint fault tolerance to radically accelerate and cost reduce Spark workloads with disaggregated Cloud Storage datalakes.
The results speak for themselves: across industry-standard TPC-DS benchmarks, ClipperDB+C4N delivered over 3x lower cost per query and up to 11x faster analytics*, all while maintaining 100% Spark compatibility. We can’t wait to see customers dramatically improve their Spark workload price-performance with C4N coupled with Clipper DB Accelerator." -* John Busch, CEO, ClipperDB Technologies
C4N instances are available in nine different sizes ranging from 2-192 vCPUs and up to 1.5 TB of DDR5 memory, offering predefined shapes in high-cpu, standard, and high-mem configurations.
For applications that benefit from caching and high-speed, low-latency local storage, C4N VM instances are equipped with up to 12 TiB of latest Titanium SSDs (coming soon, Sign-up here to request C4N Local-SSD preview access). For workloads that require direct access to the machine's resources (e.g., hypervisors, container platforms), where nested virtualization does not meet the workload’s performance requirements, or have special performance monitoring or licensing needs, we are introducing C4N bare metal shapes. Coming soon, these native bare metal shapes will offer the same network and storage I/O performance as their virtual machine counterparts. Google Cloud customers can use C4N instances with Compute Engine and Google Kubernetes Engine (GKE), with support for other services coming soon. | Name | vCPUs |
Memory (GB) |
Local Storage (GiB) |
Network Bandwidth | Hyperdisk Extreme Bandwidth (MiB/s) | Hyperdisk Extreme IOPS | | |
VM-VM (Gbps) |
VM-Internet (Gbps) |
|||||| | C4n-highcpu | 2 - 192 | 4 - 384 | N/A | 25 - 400 | 7 - 200 | 1.000 - 25,000 | 80,000 - 1M | | C4n-standard | 2 - 192 | 7 - 720 | N/A | 25 - 400 | 7 - 200 | 1.000 - 25,000 | 80,000 - 1M | | C4n-standard-lssd | 4 - 192 | 15 - 720 | 375 - 12,000 | 30 - 400 | 7 - 200 | 1.000 - 25,000 | 100,000 - 1M | | C4n-highmem | 2 - 192 | 15 - 1,488 | N/A | 25 - 400 | 7 - 200 | 1.000 - 25,000 | 80,000 - 1M | | C4n-highmem-lssd | 4 - 192 | 31 - 1,488 | 375 - 12,000 | 30 - 400 | 7 - 200 | 1.000 - 25,000 | 100,000 - 1M |
C4N machine series performance and specifications
Whether you’re hosting heavy-duty distributed databases, running network virtualization appliances, or orchestrating large-scale data pipelines for AI, C4N is engineered to provide the throughput, scale, and efficiency your business demands. C4N instances are now generally available via on-demand, as Spot VMs, and via reservations. You can also take advantage of further cost savings by purchasing Committed Use Discounts (CUDs) or FlexCUDs in one- and three-year terms in the us-central1 (Iowa), us-east1 (South Carolina), us-east5 (Ohio), us-west1 (Oregon) and europe-west2 (London). For more information visit Network Optimized Machine Type.
Ready to establish a high-performance launchpad for innovation? Head straight to the Google Cloud console to spin up a C4N VM** **under the “Network Optimized” machine family. Stay up-to-date on regional availability by visiting our regions and zones page or contact your Google Cloud sales representative for more information.