OpenSSL
Intel Core i7-3930K testing with a ASUS RAMPAGE IV EXTREME and AMD Radeon HD 7900 3072MB on Ubuntu 12.04 via the Phoronix Test Suite.
HTML result view exported from: https://openbenchmarking.org/result/1303163-FO-OPENSSL8045.
OpenSSL
RSA 4096-bit Performance
Phoronix Test Suite v10.8.4