AMD® RX-427BB
The AMD RX-427BB is a laptop processor released on May 20, 2014 using a 28 nm process. It has 4 cores and 4 threads, a base clock of 2.70 GHz, a maximum boost of 3.60 GHz, a 35 W TDP and the FP3 socket.
Overview
SummaryThe AMD RX-427BB is a laptop processor with 4 cores and 4 threads (28 nm process). It launched in May 2014. Clocks run from 2.7 GHz base to 3.6 GHz boost. It uses the FP3 socket. Rated TDP is 35 W.
Performance
12 metricsThe AMD RX-427BB scores 1,282 in single-core performance and 2,673 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 1,851 for overall performance, 3,532 for productivity performance, 3,778 for creator performance, 2,573 for engineering performance and 4,514 for gaming performance. Its multi-core throughput works out to 668 per core, 668 per thread and 76 per watt. Its computed efficiency index is 313. Its performance index is 23, so its overall performance is 77% below the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.
How these scores are computed
Single-core and multi-core performance are PassMark CPU Mark single-thread and multi-thread ratings. Every other figure on this page's performance section is computed by Feex from those two ratings plus core count, thread count and TDP, so it is a derived value and not a separate benchmark run.
- Overall performance is the geometric mean of the two ratings: the square root of single-core times multi-core.
- Productivity performance is 0.65 times multi-core plus 1.4 times single-core.
- Creator performance is 0.55 times multi-core plus 1.8 times single-core.
- Engineering performance is multi-core times the smaller of 1.4 and (0.9 plus cores divided by 64).
- Gaming performance is 3 times single-core plus 0.25 times multi-core.
- Performance per core, per thread and per watt divide the multi-core rating by physical cores, logical threads and TDP in watts.
- The efficiency index is the square root of single-core times multi-core, divided by the square root of TDP.
- The performance index is overall performance divided by the overall performance of the Intel Core i5-12400 (8,069), times 100.
Workload Benchmarks
8 workloadsScores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.
In the individual workload tests the AMD RX-427BB scores 15,637 in integer math, 4,457 in floating-point math, 43,372 in compression, 743 in cryptography, 211 in physics simulation, 1,560 in vector SIMD, 12 in the prime sieve and 4,981 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 73% below in integer math, 90% below in floating-point math, 81% below in compression, 94% below in cryptography, 81% below in physics simulation, 90% below in vector SIMD, 82% below in the prime sieve and 78% below in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.
Core Configuration
7 specsThe AMD RX-427BB has 4 physical cores and runs 4 logical threads. It does not use a hybrid performance and efficiency core layout. It does not support simultaneous multithreading, so its thread count equals its core count. It runs at a base clock of 2.70 GHz and boosts up to 3.60 GHz.
Architecture & Generation
5 specsThe AMD RX-427BB is a laptop processor, belongs to the AMD AMD family and is manufactured on a 28 nm process. It launched in May 2014.
Cache
4 specsThe AMD RX-427BB has 448 KB of L1 cache and 8 MB of L2 cache. That adds up to about 8.4 MB of cache, or 2.11 MB per core.
Cache Hierarchy
2 levelsThe AMD RX-427BB has a 2-level cache hierarchy: L1 at 448 KB and L2 at 8 MB. L2 is the largest level and makes up about 95% of the cache listed here.
Platform & Compatibility
1 specThe AMD RX-427BB uses the FP3 socket.
Power & Thermals
1 specThe AMD RX-427BB has a rated TDP of 35 W.
Platform Capabilities
0 supported, 0 not supportedInstruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.
Instruction Sets
0 supportedSecurity and Reliability
0 supportedVirtualization
0 supportedFeex has no record for AES-NI, AVX-512, AVX2, AVX, AVX-VNNI and CET, which is different from being unsupported.
Feex has no record for AMD SEV, AMD SME, Control-flow Enforcement (CET), Execute Disable (NX), Memory Encryption and SMAP, which is different from being unsupported.
Feex has no record for AMD SVM, AMD-V (Hardware Virtualization), NPT / RVI, IOMMU and Second-Level Address Translation, which is different from being unsupported.
Naming & Aliases
3 specsReal-world compute in the Feex fleet
No machines yetNo Feex fleet machines with the AMD RX-427BB have reported compute telemetry yet, so real-world compute for this processor is not recorded.
Data Coverage
38% recordedFeex has recorded 38% of the specifications it tracks for the AMD RX-427BB. Values Feex does not hold are shown as "Not recorded" rather than estimated.
Not recorded: Core Configuration: Efficiency Cores, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L2 Cache (per Core) and L4 Cache. Memory Support: Max Memory, Memory Channels, Memory Bandwidth, Memory Types, DDR5 Support, DDR4 Support, LPDDR Support, ECC Memory and Max Memory Speed. Graphics: Integrated Graphics, Graphics Model, Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package, Package Size and PCIe Lanes. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count, Foundry and Launch Price. Naming & Aliases: SKU, Model Number, Processor Number and Part Number.
Common questions
7 answeredHow many cores and threads does the AMD RX-427BB have?
The AMD RX-427BB has 4 cores and 4 threads.
What socket does the AMD RX-427BB use?
The AMD RX-427BB uses the FP3 socket.
How fast does the AMD RX-427BB run?
The AMD RX-427BB can boost up to 3.6 GHz, with a 2.7 GHz base clock.
What is the TDP of the AMD RX-427BB?
The AMD RX-427BB has a TDP of 35 W.
How does the AMD RX-427BB perform?
In the Feex normalized performance dataset, the AMD RX-427BB scores 2,673 multi-core and 1,282 single-core.
How much cache does the AMD RX-427BB have?
The AMD RX-427BB has 448 KB of L1 cache and 8192 KB of L2 cache.
How does the AMD RX-427BB compare with the Intel Core i5-12400?
The AMD RX-427BB has a computed performance index of 23, which is 77% below the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.