megatitanium14 :
Can someone help explain some SIMILARITIES between AMD and Intel processors?
Functionally, they are nearly identical. They are both x86/x86_64 processors with a similar L1+L2(+L3 on some models) cache arrangement, transistor size, clock speeds, and nearly identical SIMD extensions and performance. Basically, you can drop in an AMD CPU + motherboard in a unit that previously had an Intel CPU and motherboard and unless you look in the system properties to see what CPU is in there, you'd be hard-pressed to tell any difference.
There are probably fewer differences than there are similarities. Here are the notable differences I can think of between the CPUs:
- They use different motherboards due to using different sockets and different chipsets.
- The Core i7s have HyperTreading, which AMD processors do not.
- All modern AMD processors have an onboard memory controller, while only the Intel chips to have one is the i7. The rest of Intel's CPUs have a frontside bus.
- The heatsinks for each chip have a different mounting mechanism, although certain aftermarket heatinks can fit both kinds of chips.
- Some Intel dual-core and quad-core chips have unified level 2 cache (Core Duo/Core 2 Duo and Quad) while all AMD duals and quads and the rest of Intel's duals and quads (Pentium D, Core i7) have independent L2 caches.
- AMD has never made an MCM processor, while Intel has (Pentium D, Core 2 Quad).
- They use different virtual machine extensions (Intel VT vs. AMD SVM)
- The very latest processors have slightly different SIMD instructions (AMD has SSE4a vs. Intel's SSE 4.1 and 4.2).