*Ultimate 686 Benchmark Comparison*as complete as possible, I decided I'd like to include some obscure CPUs if I can find anyone willing to test them. For anyone who has these CPUs, a suitable motherboard, and is interested in collaborating, please come forth! Expect between 2-3 hours of commitment per CPU.

Unfortunately, the CPUs and motherboards for these processors have become too difficult and costly for me to acquire. Of the numerous members here, I figure someone must have these working systems. They are listed in order of preferance.

**NexGen P80 â€“ 75 MHz**

NexGen P90 â€“ 83 MHz

NexGen PF100 â€“ 93 MHz

NexGen PF110 â€“ 102 MHz

Or any NexGen system w/FPU

NexGen P90 â€“ 83 MHz

NexGen PF100 â€“ 93 MHz

NexGen PF110 â€“ 102 MHz

Or any NexGen system w/FPU

**Pentium P5 â€“ 60 MHz**

Pentium P5 â€“ 66 MHz

Pentium P5 â€“ 66 MHz

**Intel Xeon PIII - 600 MHz**

**Intel PII-Dechutes - 450 MHz**

For NexGen systems prior to the PF series, please have the mating NexGen FPU.

It is preferred to use a Matrox Millennium G200 graphics card and a Yamaha DS-XG sound card to be consistent with the other results, however use what you can.

I have attached a PDF template if anyone is interested in assisting with this project. Donations are also welcome.

Following is a list of CPU's benchmarked to-date. All the CPUs within a particular socket category have been tested on same motherboard, with the exception of the VIA Nehemiah.

**SOCKET 3**

Cyrix 5x86c-100 (50 x 2)

Cyrix 5x86c-120 (60 x 2)

Cyrix 5x86c-133 (66 x 2)

AMD X5-133 (33 x 4)

AMD X5-160 (40 x 4)

Intel DX4WB-133 (66 x 2)

Intel P24T-83 (33 x 2.5)

Intel P24T-100 (40 x 2.5)

**SOCKET 7-GXM**

Cyrix MediaGX-133 (33 x 4) - Simulated

Cyrix MediaGX-150 (30 x 5)

Cyrix MediaGX-166 (33 x 5)

Cyrix MediaGX-180 (30 x 6)

Cyrix MediaGX-200 (33 x 6)

Cyrix MediaGX-233 (33 x 7)

Cyrix MediaGX-266 (33 x 8)

Cyrix MediaGX-300 (33 x 9) - Simulated

Cyrix MediaGX-333 (33 x 10) - Simulated

**SOCKET 7**

Cyrix 6x86-75 (75 x 1)

Cyrix 6x86-83 (83 x 1)

Cyrix 6x86-100 (50 x 2)

Cyrix 6x86-110 (55 x 2)

Cyrix 6x86-120 (60 x 2)

Cyrix 6x86-133 (66 x 2)

Cyrix 6x86L-150 (75 x 2)

Cyrix 6x86MX-133 (66 x 2)

Cyrix 6x86MX-150 (60 x 2.5)

Cyrix 6x86MX-166 (66 x 2.5)

Cyrix 6x86MX-200 (66 x 3)

Cyrix 6x86MII-233 (66 x 3.5)

Cyrix 6x86MII-250 (83 x 3)

Cyrix 6x86MII-262 (75 x 3.5)

Cyrix 6x86MII-266 (66 x 4)

Cyrix 6x86MII-292 (83 x 3.5)

Cyrix 6x86MII-300 (75 x 4)

Cyrix 6x86MII-333 (83 x 4)

AMD K5-75 (50 x 1.5)

AMD K5-90 (60 x 1.5)

AMD K5-100 (66 x 1.5)

AMD K5-105 (60 x 1.75)

AMD K5-117 (66 x 1.5)

AMD K5-120 (60 x 2)

AMD K5-125 (83 x 1.5)

AMD K5-133 (66 x 2)

AMD K6-133 (66 x 2)

AMD K6-166 (66 x 2.5)

AMD K6-200 (66 x 3)

AMD K6-233 (66 x 3.5)

AMD K6-262 (75 x 3.5)

AMD K6-266 (66 x 4)

AMD K6-292 (83 x 3.5)

AMD K6-300 (66 x 4.5)

AMD K6-300 (75 x 4)

AMD K6-333 (83 x 4)

AMD K6-2-133 (66 x 2)

AMD K6-2-233 (66 x 3.5)

AMD K6-2-266 (66 x 4)

AMD K6-2-300 (75 x 4)

AMD K6-2-333 (83 x 4)

AMD K6-2+-133 (66 x 2)

AMD K6-2+-300 (75 x 4)

AMD K6-3+-133 (66 x 2)

AMD K6-3+-300 (75 x 4)

AMD K6-3+-333 (83 x 4)

AMD K6-3+-500 (83 x 6)

Intel P5-60 (60 x 1) - Simulated

Intel P5-66 (66 x 1) - Simulated

Intel P54C-75 (50 x 1.5)

Intel P54C-90 (60 x 1.5)

Intel P54C-100 (66 x 1.5)

Intel P54C-120 (60 x 2)

Intel P54C-133 (66 x 2)

Intel P54C-150 (60 x 2.5)

Intel P54C-166 (66 x 2.5)

Intel P54C-200 (66 x 3)

Intel P55C-133 (66 x 2)

Intel P55C-166 (66 x 2.5)

Intel P55C-200 (66 x 3)

Intel P55C-233 (66 x 3.5)

Intel P55C-262 (75 x 3.5)

Intel P55C-300 (75 x 4) - Simulated

Winchip C6-133 (66 x 2)

Winchip C6-200 (66 x 3)

Winchip2A-133 (50 x 2.66)

Winchip2A-133 (66 x 2) - Simulated

Winchip2A-166 (66 x 3.5)

Winchip2A-200 (66 x 3)

Winchip2A-225 (75 x 3)

Winchip2A-233 (66 x 3.5)

Winchip2A-240 (60 x 4)

Winchip2A-250 (83 x 3)

Winchip2A-262 (75 x 3.5)

Rise mP6-133 (66 x 2)

Rise mP6-166 (66 x 2.5)

Rise mP6-166 (83 x 2.5)

Rise mP6-200 (66 x 3)

Rise mP6-208 (83 x 2.5)

Rise mP6-233 (66 x 3.5) - Simulated

**SUPER SOCKET 7**

Cyrix 6x86MII-250 (100 x 2.5)

Cyrix 6x86MII-285 (85 x 3)

Cyrix 6x86MII-300 (75 x 4)

Cyrix 6x86MII-300 (100 x 3)

Cyrix 6x86MII-333 (83 x 4)

Cyrix 6x86MII-350 (100 x 3.5)

Cyrix 6x86MII-400 (100 x 4) - Simulated

AMD K6-300 (75 x 4)

AMD K6-300 (100 x 3)

AMD K6-2-300 (100 x 3)

AMD K6-2-350 (100 x 3.5)

AMD K6-2-400 (66 x 6)

AMD K6-2-400 (100 x 4)

AMD K6-2-450 (100 x 4.5)

AMD K6-2-500 (100 x 5)

AMD K6-2-550 (100 x 5.5)

AMD K6-2-600 (100 x 6)

AMD K6-2+-350 (100 x 3.5)

AMD K6-2+-400 (100 x 4)

AMD K6-2+-450 (100 x 4.5)

AMD K6-2+-500 (100 x 5)

AMD K6-2+-550 (100 x 5.5)

AMD K6-2+-600 (100 x 6)

AMD K6-3+-350 (100 x 3.5)

AMD K6-3+-400 (66 x 6)

AMD K6-3+-400 (100 x 4)

AMD K6-3+-450 (100 x 4.5)

AMD K6-3+-500 (83 x 6)

AMD K6-3+-500 (100 x 5)

AMD K6-3+-550 (100 x 5.5)

AMD K6-3+-600 (100 x 6)

Intel P55C-250 (100 x 2.5)

Intel P55C-262 (75 x 3.5)

Intel P55C-300 (100 x 3)

Winchip2A-233 (100 x 2.33)

Winchip2A-250 (100 x 2.5)

Rise mP6-200 (100 x 2)

**SOCKET 8**

P6-133 / 256k (66 x 2)

P6-150 / 256k (60 x 2.5)

P6-166 / 256k (66 x 2.5)

P6-180 / 256k (60 x 3)

P6-200 / 256k (66 x 3)

P6-210 / 256k (60 x 3.5)

P6-233 / 256k (66 x 3.5)

P6-133 / 1mb (66 x 2)

P6-166 / 1mb (66 x 2.5)

P6-200 / 1mb (66 x 3)

P6-233 / 1mb (66 x 3.5)

PIIOD-300 (60 x 5)

PIIOD-333 (66 x 5)

**SLOT 1**

PII-Klamath-133 (66 x 2)

PII-Klamath-166 (66 x 2.5)

PII-Klamath-200 (66 x 3)

PII-Klamath-233 (66 x 3.5)

PII-Klamath-266 (66 x 4)

PII-Klamath-300 (100 x 3)

PII-Dechutes-350 (100 x 3.5)

PII-Dechutes-400 (100 x 4)

PIII-Katmai-500 (100 x 5)

PIII-Katmai-550 (100 x 5.5)

PIII-Katmai-600 (100 x 6)

PIII-Coppermine-600 (100 x 6)

Celeron-Mendocino-300 (66 x 4.5)

Celeron-Mendocino-400 (66 x 6)

Celeron-Mendocino-450 (100 x 4.5)

SLOT 2

SLOT 2

PII-Xeon-400 / 512k (100 x 4)

PII-Xeon-400 / 2mb (100 x 4)

PII-Xeon-450 / 512k (100 x 4.5)

PII-Xeon-450 / 2mb (100 x 4.5)

PIII-Xeon-500 / 512k (100 x 5)

PIII-Xeon-550 / 512k (100 x 5.5)

**SOCKET 370**

VIA C3-Samuel-550 (100 x 5.5)

VIA C3-Samuel-600 (100 x 6)

VIA C3-Samuel2-600 (100 x 6)

VIA C3-Ezra-600 (100 x 6)

VIA C3-Nehemiah-400 (66 x 6)

VIA C3-Nehemiah-600 (66 x 6)

VIA C3-Nehemiah-600(100 x 6)

**SLOT A**

AMD Athlon-500 (100 x 5)

AMD Athlon-600 (100 x 6)