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| 5.3 Out of 10 |  | by dstoler (Nov, 2011) by dstoler (Nov, 2011) |
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CPUBoss Review Our evaluation of the AMD Phenom II X4 840 among desktop CPUs (over 75W)
Performance | |
Benchmark performance using all cores | |
| PCMark 8 Home 3.0 Accelerated, PassMark and 1 more | |
Single-core Performance | |
Individual core benchmark performance | |
| PassMark (Single Core), Geekbench 3 Single Core and 1 more | |
Integrated Graphics | |
Integrated GPU performance for graphics | |
| Fire Strike | |
Integrated Graphics (OpenCL) | |
Integrated GPU performance for parallel computing | |
| CompuBench 1.5 Bitcoin mining and 4 more | |
Performance per Watt | |
How efficiently does the processor use electricity? | |
| Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more | |
Value | |
Are you paying a premium for performance? | |
| Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more | |
| 5.3 | CPUBoss Score |
Combination of all six facets | |
Benchmarks Real world tests of the AMD Phenom II X4 840
GeekBench 3 (Multi-core) Data courtesy Primate Labs
GeekBench 3 (Single core) Data courtesy Primate Labs
GeekBench 3 (AES single core) Data courtesy Primate Labs
GeekBench (32-bit) Data courtesy Primate Labs
GeekBench (64-bit) Data courtesy Primate Labs
GeekBench
PassMark Data courtesy Passmark
PassMark (Single Core)
Reviews Word on the street for the AMD Phenom II X4 840
 |
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|---|---|---|
What People Are Saying Give it to me straight
Socket Type
by dstoler (Nov, 2011)I installed the chip in my ASRock 990fx Am3+ board with a H100 cpu water cooler and it ran like a charm.
by snipekill2445 (May, 2012)If I jumped it to 1.4-1.45 I could probably get 3.8/4ghz outta this thing, but I don't want to risk frying it.
by dstoler (Nov, 2011)Temps were only 50c 3 hours of blend testing in Prime95.
Socket
by dstoler (Nov, 2011)I tried to go to 4.1 Ghz and hit a wall in the voltages.
by snipekill2445 (May, 2012)I only use my system for gaming, paired with 6GB of 1500mhz ram and a HD 6950 and I can max out almost all games like Skyrim, BFBC2 and MW3.
by snipekill2445 (May, 2012)I did need to OC it to 3.6ghz to solve my GPU bottleneck though.
Overclocking
by dstoler (Nov, 2011)I wanted to get the most for my money so I researched ALOT on OCN and other sites about how to overclock.
by dstoler (Nov, 2011)I have had 2 of these chips now (sold one) and have yet to see a 24/7 overclock of this cpu higher than mine.
Multicore
by snipekill2445 (May, 2012)That fact that it is a quad-core for such a low price is incredible.
Cooling
by dstoler (Nov, 2011)With proper Board and cooling it overclocks awesome!
Specifications Full list of technical specs
summary
| Clock speed | 3.2 GHz |
|---|---|
| Turbo clock speed | 0 GHz |
| Cores | Quad core |
| Socket type | AM3 |
| Is unlocked | No |
features
| Has a NX bit | Yes |
|---|---|
| Has virtualization support | Yes |
| Instruction set extensions |
|
| Supports dynamic frequency scaling | Yes |
integrated graphics
| GPU | None |
|---|
bus
| Clock speed | 2,000 MHz |
|---|
details
| Architecture | x86-64 |
|---|---|
| Threads | 4 threads |
| L2 cache | 2 MB |
| L2 cache per core | 0.5 MB/core |
| L3 cache | 0 MB |
| L3 cache per core | 0 MB/core |
| Manufacture process | 45 nm |
| Max CPUs | 1 |
| Voltage range | 0.85 - 1.4V |
| Operating temperature | Unknown - 71°C |
overclocking
| Overclock popularity | 37 |
|---|---|
| Overclock review score | 5 |
| Overclocked clock speed | 3.92 GHz |
| Overclocked clock speed (Water) | 3.1 GHz |
| PassMark (Overclocked) | 1,971.6 |
| Overclocked clock speed (Air) | 3.92 GHz |
power consumption
| TDP | 95W |
|---|---|
| Annual home energy cost | 22.89 $/year |
| Annual commercial energy cost | 83.22 $/year |
| Performance per watt | 1.87 pt/W |
| Typical power consumption | 77.19W |
memory controller
| Memory controller | Built-in |
|---|---|
| Memory type | DDR3 |
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