Temps in IntelBurnTest on Very High were in the 75-80C range on the stock cooler, which pretty much means the thing can handle just about any task you give it without overheating, and without being overly loud either.
Turbo boost is fast and seamless, making it possible for that dinky little stock cooler to manage quite nicely. Given the fact that it's dual core, that's pretty impressive, even if those are 2-4 gen old chips. in wPrime 2.10, which for comparison is about 4 seconds slower than an i5 2500K clocked at 4.5Ghz and about on par with a Core 2 Quad Q9550 clocked at 3.77Ghz. It's remarkably snappy, given the price segment. Pros: I put this in a client's computer and ran it through he gamut. It has 20x + improvement from prior generation and is automatic, continuous, fine-grained, transparent to well written SW.
Haswell power management innovationHaswell core-based processors offer advanced power management. It supports up to three independent displays: HDMI, DVI, Display Port, VGA (via Lynx Point). It also features digital display repartition, where digital display ports are wired directly to the CPU and analog displays are handled by a Random Access Memory Digital-to-Analog Converter (RAMDAC) located in the Platform Controller Hub (PCH). The integrated graphics supports DirectX 11.1 for optimized graphics performance and OpenGL 3.2 & OpenCL 1.2 for enhanced general purpose computing in GPGPU supported applications. Intel processor graphics with Dx11.1 & OPenCL 1.2Haswell core-based processors offer improved integrated graphics. Intel Hyper-Threading TechnologyIntel Hyper-Threading Technology delivers thread-level parallelism on each processor resulting in more efficient use of processor resources-higher processing throughput-and improved performance on the multi-threaded software of today and tomorrow. Additional new instructions accelerate key algorithms including parallel extract/deposit, bit manipulation operations and new rotates/multiplies/shift. It also offers new capabilities such as Gather and FMA (Fused Multiply-Add). Intel AVX2 expands integer data to 256-bit SIMD to increase the performance of integer operations. New 4 generation Intel Core processor family instructionsHaswell core-based processors come with Intel Advanced Vector Extensions 2 (Intel AVX2). It delivers improved CPU performance and enhanced overclocking over its previous generation Microarchitecture. 
Haswell Microarchitecture on 22nm processThe new Microarchitecture (code name Haswell) has full integrated voltage regulator (FIVR) for simplified motherboard design.
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