ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR <b>Higher Performance When You Need It Most</b> Intel® Turbo Boost Technology 2.01 accelerates processor and graphics performance by increasing the operating frequency when operating below specification limits. The maximum frequency varies depending on workload, hardware, software, and overall system configuration. 2.0 Hard Drive HDD Intel® Xeon® processors deliver cloud computing, real-time analytics, processing for your mission-critical business, and big data insights. Improve data center efficiency and reliability to handle any workload. Intel Xeon E5 v3 HP 840, 2.4 GHz, Intel Xeon E5 v3, 8 GB, 1 TB, DVD Super Multi, Windows 7 Professional HP 840. Processor frequency: 2.4 GHz, Processor family: Intel Xeon E5 v3, Processor model: E5-2630V3. Internal memory: 8 GB, Internal memory type: DDR4-SDRAM, Memory clock speed: 2133 MHz. Total storage capacity: 1 TB, Storage media: HDD, Optical drive type: DVD Super Multi. Operating system installed: Windows 7 Professional, Operating system architecture: 64-bit. Power supply: 850 W. Chassis type: Mini Tower. Product type: Workstation. Product color: Black https://www.postmagazine.com/Publications/Post-Magazine/2015/August-1-2015/Review-HPs-z840-workstation.aspx Over two years ago I reviewed the HP z820 Red Edition workstation: ( ).It was incredible, to say the least, and it made me rethink the possibilities in post production. With 4K becoming a serious contender in post workflows everywhere by the end of 2... MANUFACTURER: HPPRODUCT: z840PRICE: starting at $2,399WEBSITE: - Highly configurable with up to Dual 18-core Intel Xeon E5 processors for a total of 36 cores (72 threads)- Extremely easy to use tool-less design allows easy upgrades and repairs- Includes H... https://www.videomaker.com/article/c05/17877-hewlett-packard-z840-review The video production workstation to beat, the HP Z840 offers top-tier performance for the video professional. Video editors, rejoice! Hewlett-Packard has come forth with their new HP Z840. Released in August of 2014, the Z840 is built to expand to meet wh... Incredible expandability, Blazing fast computing horsepower, Smooth rendering and export Weight, 2TB of memory not available until 3rd quarter 2015 when 128 GB DIMMs become available Fast. Stable. Expandable. Everything you need for professional video editing. While using PCIe SSD for storage, 2TB of DDR4 memory, and a NVIDIA Quadro K5200 for blazing fast graphics,  it would be hard to find a machine to top this workstation. Though fa... https://www.pcmag.com/review/331225/hp-z840-workstation The HP Z840 ($10,044 as tested) is a high-end workstation desktop made for hypercritical engineering and scientific tasks on projects that could potentially affect thousands, if not millions, of people. Its dual octo-core Intel Xeon processors and Nvidia ... Dual 8-core Xeon processor and Nvidia Quadro graphics. 1,125-watt power supply. Thunderbolt port. Lots of internal expansion room. IT-friendly serviceability. Quiet. Expensive. Reqires HDMI adapter The HP Z840 is a high-end, dual-socket, professional workstation with two octo-core processors, prodigious expansion space, and ISV-certified graphics for your multi-million-dollar projects.... https://www.studiodaily.com/2014/11/review-hp-z840-workstation/ It has been just two years since HP introduced its flagship Z820 workstation. And, almost like clockwork, we're ready for a replacement model that updates many of the internal components.The two-year cycle is no accident. Like the newly introduced Z640 an... Latest Xeon processors up to 3.6 GHz and up to 18 cores per processor; dual-processor support; 2,133 MHz DDR4 memory; can expand system RAM up to 2 TB when 128 GB DIMMs become available; PCIe-based SSD option; each of the 3.5-inch drive bays can hold two... The Z8 series no longer has a legacy PCI slot or built-in 1394 port. There's no onboard Thunderbolt 2, though it is available through an optional add-in card It's hard to find fault with the HP Z840. If you're a Mac user, you may wonder why there isn't an onboard Thunderbolt connector. HP does support Thunderbolt 2, though that support is limited to an optional add-in card. You might just want a different conf...