AMD Phenom II X4 B95

AMD Phenom II X4 B95 is a desktop processor in the Phenom II X4 generation, built on the K10 architecture with the Deneb codename. It has 4 cores and 4 threads, a 3.00 GHz base clock, and no boost clock. The CPU is fabricated by GlobalFoundries on a 45 nm process with 758 million transistors on a 258 mm² die. It uses AMD Socket AM3 and carries a 95 W TDP. Its average benchmark score is 710, which places it at the 18th percentile of all CPUs in the benchmark database.

Benchmark Performance

The benchmark data includes five Cinebench results. Cinebench R15 multicore returns 207. Cinebench R20 multicore returns 866, and the same test’s single-core result is 122. Cinebench R23 multicore returns 2062, and its single-core result is 291. These are the only recorded performance scores, and together they describe a CPU whose aggregate average benchmark score is 710.

That aggregate places the B95 in the lower portion of the overall CPU distribution. The percentileVsAllCpus value is 18, meaning the majority of CPUs in the database hold higher average scores. At the same time, the nearest rivals are extremely close. The Intel Core i5-4350U has an average score of 709 and a deltaPct of 0.1; the Intel Core i5-660 has 708 and 0.3; the Intel Xeon X5450 has 707 and 0.4; the AMD Phenom II X4 840 has 713 and -0.4.

Those delta values translate into a 0.1% lead over the i5-4350U, a 0.3% lead over the i5-660, a 0.4% lead over the Xeon X5450, and a 0.4% deficit against the Phenom II X4 840. The spread between the lowest and highest rival scores runs from 707 to 713, and the B95 sits in that range at 710. This is a dense pack: none of the listed deltas indicate a dominant margin in either direction.

Power and Thermals

The TDP for the B95 is 95 W. This single figure governs the cooling tier: a desktop cooler intended for a 95 W-class processor is the appropriate match. The silicon is a GlobalFoundries 45 nm Deneb die with 758 million transistors and a 258 mm² area, which provides the physical context for the TDP. No boost clock is listed, so there is no higher-frequency state that would push power above the base-clock envelope.

Because the B95 is a 4-core/4-thread part at 3.00 GHz, the 95 W envelope has to cover all four cores under a threaded load. The integrated graphics entry in the dataset is “On certain motherboards (Chipset feature)”, so the CPU itself does not appear to include a graphics block sharing that thermal budget. For a desktop build, the practical result is that cooling requirements are conventional for the 95 W class rather than exotic.

Single-Thread vs Multi-Thread Behavior

The B95 has 4 cores and 4 threads, so there is no simultaneous multi-threading. Single-thread performance is represented by Cinebench R20 single-core at 122 and Cinebench R23 single-core at 291. Multi-thread performance is represented by Cinebench R15 multicore at 207, Cinebench R20 multicore at 866, and Cinebench R23 multicore at 2062.

The difference between the single-core and multi-core groups is substantial. In R20, the multi-core figure of 866 is much larger than the single-core figure of 122. In R23, the multi-core figure of 2062 is much larger than the single-core figure of 291. That pattern is consistent with a 4-core processor scaling across all four threads; the multi-core result is driven by four physical cores running at the same base clock.

For real workloads, the split matters. Lightly threaded applications will be limited by the 3.00 GHz base clock and the K10 core’s single-thread performance, which the dataset shows is modest. Well-threaded applications can engage all four cores, producing the higher multi-core scores. The cache hierarchy contributes as well: each core has 128 KB of L1 and 512 KB of L2, while 6 MB of L3 is shared across the four cores.

How It Compares

Against the Intel Core i5-4350U, the B95’s 710 average score is 0.1% ahead of 709. The delta is so small that the two processors are effectively interchangeable in aggregate benchmark terms.

Against the Intel Core i5-660, the B95 is 0.3% ahead, 710 versus 708. This is the second-closest comparison in the group, and the B95 holds a consistent but narrow edge.

Against the Intel Xeon X5450, the B95 is 0.4% ahead, 710 versus 707. This is the largest positive delta among the nearest rivals, demonstrating the upper bound of the B95’s advantage in this cluster.

Against the AMD Phenom II X4 840, the B95 is 0.4% behind, 710 versus 713. The Phenom II X4 840 is the only listed rival with a higher average score, and the 0.4% gap is the same magnitude as the B95’s lead over the Xeon X5450.

FAQ

Q: What is the TDP of the Phenom II X4 B95?

A: The TDP is 95 W.

Q: What memory does it support?

A: It supports DDR3 in dual-channel mode with 21.3 GB/s bandwidth, and ECC memory is supported.

Q: Does it have a boost clock?

A: No boost clock is listed. The base clock is 3.00 GHz.

Q: What is the production status?

A: Production status is end-of-life. The release date is 2009-09-30.

Q: Is the multiplier unlocked?

A: No, the multiplier is not unlocked.

Q: What socket does it use?

A: It uses AMD Socket AM3.

Platform and Compatibility

The B95 is a desktop-market processor built for AMD Socket AM3. Its memory support is DDR3 through a dual-channel interface, with 21.3 GB/s of bandwidth and ECC support. The PCIe interface is Gen 2. Integrated graphics is not listed as a CPU function; the dataset describes it as available on certain motherboards as a chipset feature. The multiplier is locked, and the part number is HDXB95WFK4DGI.

The release date of 2009-09-30, the K10/Deneb architecture, and the end-of-life production status all point to a legacy desktop platform. For anyone working on an AM3 board with DDR3 memory slots, this CPU fits that socket and memory generation. The absence of a boost clock and the locked multiplier affect tuning potential, but the core compatibility constraints are the AM3 socket, dual-channel DDR3, and PCIe Gen 2 connectivity.