Phenom II X4 840T

Details and Benchmarks for AMD Phenom II X4 840T

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Phenom II X4 840T based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,367 Rank: 1449
Rank Name Score Visual
1445 Core 2 Duo E8600 4,369
+0%
1446 A9-9400 4,369
+0%
1447 Core 2 Duo T7400 4,368
+0%
1448 Core i7-930 4,368
+0%
1449 Phenom II X4 840T 4,367
1450 Pentium 2020M 4,365
+-0%
1451 Core i7-640M 4,365
+-0%
1452 Intel Pentium P6200 4,364
-0.1%
1453 Core i3-3110M 4,362
-0.1%
1454 A4-6320 4,362
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Phenom II X4 840T based on multi-threaded benchmark results.

4,423 Rank: 1402
Rank Name Score Visual
1398 FX-4130 4,425
+0%
1399 A10 PRO-7800B 4,425
+0%
1400 Phenom II X3 B77 4,424
+0%
1401 Celeron G4920 4,423
+0%
1402 Phenom II X4 840T 4,423
1403 Phenom II X4 910 4,423
+0%
1404 Core i5-6200U 4,422
+-0%
1405 Athlon II X2 265 4,422
+-0%
1406 Phenom II X4 900e 4,421
+-0%
1407 PRO A8-8650B 4,421
+-0%

View full ranking →

Singlecore Score

Single-core performance score for Phenom II X4 840T based on single-threaded benchmark results.

4,330 Rank: 1465
Rank Name Score Visual
1461 Intel Core i7-740QM 4,333
+0.1%
1462 Core i5-3317U 4,332
+0%
1463 Pentium E5700 4,332
+0%
1464 Phenom II X4 840 4,330
+0%
1465 Phenom II X4 840T 4,330
1466 Core 2 Quad Q9650 4,328
+-0%
1467 A12-9720P 4,326
-0.1%
1468 Core 2 Duo E8500 4,326
-0.1%
1469 A8-5500B 4,324
-0.1%
1470 A6-6400K 4,323
-0.2%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Phenom II X4 840T based on integer math, floating point math, and prime number computation benchmarks.

4,534 Rank: 1271
Rank Name Score Visual
1267 Pentium G2130 4,534
+0%
1268 Pentium G3220 4,534
+0%
1269 Core i3-3220T 4,534
+0%
1270 Core i5-4310U 4,534
+0%
1271 Phenom II X4 840T 4,534
1272 A8-5550M 4,534
+0%
1273 Core i5-670 4,534
+0%
1274 A8-5557M 4,534
+0%
1275 Core i3-6157U 4,533
+-0%
1276 Celeron G4900 4,533
+-0%

View full ranking →

Data Processing

Aggregated score for Phenom II X4 840T based on data encryption, data compression, and string sorting benchmarks.

4,535 Rank: 1132
Rank Name Score Visual
1128 Core i3-4360T 4,536
+0%
1129 A10-5800K 4,535
+0%
1130 A8-7650K 4,535
+0%
1131 Phenom II X4 940 4,535
+0%
1132 Phenom II X4 840T 4,535
1133 A8-3870K 4,535
+0%
1134 Core i3-8130U 4,534
+-0%
1135 Core i7-4610M 4,534
+-0%
1136 Xeon L5520 4,534
+-0%
1137 Xeon E5472 4,534
+-0%

View full ranking →

Physics & Compute

Aggregated score for Phenom II X4 840T based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,518 Rank: 1282
Rank Name Score Visual
1278 Pentium G3258 4,518
+0%
1279 Pentium G3460 4,518
+0%
1280 Phenom II X4 975 4,518
+0%
1281 Xeon E5450 4,518
+0%
1282 Phenom II X4 840T 4,518
1283 Core i5-3317U 4,518
+0%
1284 Pentium G3450T 4,518
+0%
1285 FX-7600P 4,517
+-0%
1286 Core M-5Y10c 4,517
+-0%
1287 Core i3-4030U 4,517
+-0%

View full ranking →

Phenom II X4 840T Details

For users seeking a budget-friendly desktop processor with integrated graphics support, the AMD Phenom II X4 840T offers a glimpse into an earlier era of multi-core computing. Released in September 2010, this processor is now over 13 years old, making it a relic by modern standards. Designed for desktop systems, the Phenom II X4 840T is built on AMD’s Zosma microarchitecture and utilizes a 45 nm manufacturing process, with the chip fabricated by GlobalFoundries. Despite its age, the processor remains relevant for basic computing tasks and retro builds due to its compatibility with Socket AM3 motherboards and support for DDR2 and DDR3 memory. It features four cores and two threads, with a base clock of 2.9 GHz and a maximum turbo frequency of 3.2 GHz, though the actual performance is constrained by its outdated architecture and limited cache hierarchy.

The processor includes 6 MB of L3 cache and 0.122 MiB of L1 cache, with 0.488 MiB of L2 cache distributed across the cores. It operates at a TDP of 95 W, which requires adequate cooling, especially in systems without advanced thermal management. The Phenom II X4 840T supports dual-channel DDR3 memory with a maximum speed of 1333 MT/s and a peak memory bandwidth of 21.3 GB/s. While it lacks integrated graphics natively, certain AM3 motherboards equipped with compatible chipsets can provide basic graphics capabilities through the integrated GPU feature. This makes the processor suitable for systems where a discrete GPU is not required or where cost is a primary concern.

In terms of performance, the Phenom II X4 840T scores 4367 in the overall Passmark benchmark, ranking #1449 out of 2060 processors. Its single-core score of 4330 places it at #1464, while the multicore score of 4423 ranks it #1401. These results indicate that the processor is competitive with some modern low-end CPUs, particularly in single-threaded workloads, but it falls far behind contemporary high-performance processors. For example, it is outperformed by modern Intel Celeron and AMD A-series processors in both single and multicore benchmarks. However, it holds its own against older dual-core and quad-core CPUs like the Core 2 Duo and Athlon II X2, which were released around the same time.

The Phenom II X4 840T supports a range of advanced features, including 64-bit computing, SSE4.1 and SSE4.2 instructions, AVX2, AES encryption, and AMD-V virtualization. It also includes Intel's Enhanced SpeedStep Technology (EIST) for power efficiency and supports hardware virtualization, which enhances performance in virtual machine environments. Despite its limitations, the processor remains a viable option for basic office tasks, media playback, and light multimedia editing. As of March 2026, the Phenom II X4 840T is best suited for legacy systems, retro gaming, or educational purposes where modern performance is not required.
Frequently Compared

Intel Xeon D-1537 15 views

Intel Intel Celeron J3160 12 views

AMD EPYC 7272 7 views

AMD EPYC 7302 5 views

AMD Ryzen 5 3500X 3 views

AMD Ryzen Threadripper 1950X 3 views

AMD Ryzen 3 PRO 2200GE 1 view

AMD Ryzen 9 PRO 3900 1 view

AMD Ryzen 5 PRO 3500U 1 view

Intel Xeon Silver 4214 1 view

AMD Phenom II X4 840T

Main Specifications

Designer: AMD
Name: Phenom II X4 840T
Model Number: G2020
Cores: 2
Threads: 2
Base Frequency: 2900 MHz
Clock Multiplier: 14.5xx (locked)
Core Name: Zosma
Socket: FCLGA1155
Package: µPGA
Target Segment: Desktop
Max CPUs: 1
TDP: 55 W

Cache Specifications

L1 Cache: 124.928 KiB
L2 Cache: 0.488 MiB
L3 Cache: 5.722 MiB

Memory Specifications

Supported Memory Type: DDR3 1333
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 21 GB/s
ECC Support: Yes

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 12
PCIe Configuration: up to 1x16, 2x8, 1x8 & 2x4

Integrated Graphics

GPU: HD Graphics
GPU Designer: Intel
GPU Max Frequency: 1050 MHz

Physical Specifications

Process: 22 nm
Die Area: 346 mm²
Transistor Count: 0.00 billion
Manufacturer: GlobalFoundries
Word Size: 64-bit

CPU Features

MMX SSE SSE2 SSE3 SSE4.1 SSE4.2 AVX2 AES x86-64 HT EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT SSE4a AMD-V TSX Flex Memory FMA 3DNow!
Related News

AMD Unveils Ryzen 9 9950X3D2 with 192MB L3 Cache – and Pragmata Reveals Switch 2 Performance Gap vs. PS5

AMD has unveiled the Ryzen 9 9950X3D2, a 16-core CPU with dual 3D V-Cache and a total of 192 MB L3 cache, available star...

2 sources · 1 week ago

Intel Nova Lake-S with 44 Cores? Leak Suggests Cache Strategy Shift and New Wildcat Lake Generation

A leak suggests Intel's Nova Lake-S processors may shift from 42 to 44 cores, indicating a change in tile configuration...

2 sources · 4 days ago

AMD Ryzen 9 9950X3D2 Dual Edition Available Before Launch – Lenovo Unveils New Legion Gaming Tablets

The AMD Ryzen 9 9950X3D2 Dual Edition with dual 3D V-Cache is already available ahead of its official launch on April 22...

2 sources · 3 days ago

Linux 7.1 Delivers Performance Boosts, New Hardware Support, and Kernel Optimizations

The Linux 7.1 kernel introduces significant performance improvements, including a nearly sixfold speedup in CRC64 verifi...

4 sources · 1 week ago

ASUS Unveils First TUF Gaming Mini-ITX Motherboard: The B850I WiFi Neo

ASUS has unveiled the TUF Gaming B850I WiFi Neo, the first Mini-ITX motherboard in the TUF Gaming series featuring the B...

4 sources · 6 days ago

Login

Forgot your password?

Your experience on this site will be improved by allowing cookies.