AMD Phenom II X4 840T

AMD Phenom II X4 840T
Benchmarks & Specs

Last updated:
The AMD Phenom II X4 840T, a processor from an earlier era, offered a remarkable balance at the time. Based on the proven Deneb architecture, it provided a stable foundation for many computer systems. Its four cores enabled consistently smooth operation in everyday use. Multitasking, such as simultaneous browsing and listening to music, was easily handled with this chip.

The 45nm manufacturing process was an established industry standard for its time. A particularly positive feature was the 6 MB Level 3 cache. This generous cache noticeably improved access times to frequently used data. We saw how this positively influenced the overall system response and provided more flow.

The AMD Phenom II X4 840T was often a wise choice, as it offered solid performance. It was a good fit for the budget of many users who were looking for a reliable chip. It was a consistently reliable partner for moderate applications or even older games. Its architecture also ensured broad compatibility with various hardware.

This processor remains an interesting testament to technological developments at the time. It enabled many users to work effectively and productively on the computer.
  • Quad-Core Design
  • 6 MB Level 3 Cache
  • Reliable performance for everyday tasks
  • Wide Compatibility

Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank ? / ?
In segment Desktop
Multi-core performance
Rank ? / ?
In segment Desktop
Geekbench 5, 64bit Single-Core

Geekbench 5, 64bit Single-Core
Single-core performance

AMD A6-6400K
AMD A6-6400K 100 %
2C / 2T · 4.10 GHz
471
AMD FX-6100
AMD FX-6100 100 %
6C / 6T · 3.90 GHz
471
AMD Phenom II X4 840T
4C / 4T · 3.20 GHz
469
Intel Xeon E7-4830 v2
10C / 20T · 2.70 GHz
468
Intel Pentium E6700
2C / 2T · 3.20 GHz
467
Geekbench 5, 64bit Multi-Core

Geekbench 5, 64bit Multi-Core
Multi-core performance

Intel Core 2 Extreme QX9770
4C / 4T · 3.20 GHz
1,583
Intel Pentium G3258
2C / 2T · 3.20 GHz
1,582
AMD Phenom II X4 840T
4C / 4T · 3.20 GHz
1,578
Intel Core i3-3250
2C / 4T · 3.50 GHz
1,577
Intel Core i3-4350T
2C / 4T · 3.10 GHz
1,569
Cinebench R15 (Single-Core)

Cinebench R15 (Single-Core)
Single-core performance

AMD Athlon II X4 750K
4C / 4T · 4.00 GHz
86 cb
AMD Phenom II X6 1065T
6C / 6T · 3.40 GHz
85 cb
AMD Phenom II X4 840T
4C / 4T · 3.20 GHz
84 cb
AMD Athlon X4 835
4C / 4T · 3.40 GHz
83 cb
AMD Phenom II X6 1055T
6C / 6T · 3.30 GHz
83 cb
Cinebench R15 (Multi-Core)

Cinebench R15 (Multi-Core)
Multi-core performance

AMD A12-9800
AMD A12-9800 101 %
4C / 4T · 3.80 GHz
326 cb
Intel Core i3-4360T
2C / 4T · 3.20 GHz
326 cb
AMD Phenom II X4 840T
4C / 4T · 3.20 GHz
324 cb
Intel Pentium Gold G5400T
2C / 4T · 3.10 GHz
323 cb
Intel Atom C2750
8C / 8T · 2.60 GHz
317 cb

More benchmarks

At a glance

PropertyValue
FamilyAMD Phenom II (52)
CPU groupAMD Phenom II - 800/900 (23)
ArchitectureDeneb (K10)
Technology45 nm
SegmentDesktop
SocketAM3
Generation4
Predecessor
Successor

CPU Cores and Base Frequency

PropertyValue
CPU Cores / Threads4 / 4
Hyperthreading / SMT
Core architecturenormal
Cores: 4x
Frequency: 2.90 GHz
Turbo Frequency (1 Core): 3.20 GHz
Turbo Frequency (4 Cores): 3.20 GHz
L2-Cache
L3-Cache6.00 MB
OverclockingYes

Memory & PCIe

Memory typeMemory bandwidth
DDR3-1333
DDR2-1066
21.3 GB/s
17.1 GB/s
PropertyValue
Max. Memory
Memory channels2
ECC
PCIe
PCIe Bandwidth

Thermal Management

PropertyValue
TDP95 W
TDP (PL2)
TDP up
TDP down
T. junction max.

Technical details

PropertyValue
Chip design
AES-NI
Operating systemsWindows 10, Linux
Instruction setx86-64 (64 bit)
ISA extensionsSSE3, SSE4a
Release dateQ3/2010
Release price
Documents
AMD Phenom II X4 840T
AMD Phenom II X4 840T
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