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| Intel Xeon L7545 vs Core i7 975 |
Released March, 2010
Intel Xeon L7545
- 1.87 GHz
- Hexa core
Reasons to buy the Intel Xeon L7545
![]() | Supports more CPUs in SMP configuration 8 | ![]() | Much lower typical power consumption 77.19W |
![]() | Significantly more l2 cache 2 MB | ![]() | Significantly more l3 cache 18 MB |
VS
Released June, 2009
Intel Core i7 975
- 3.33 GHz
- Quad core
- Unlocked
Reasons to buy the Core i7 975
![]() | Much higher clock speed 3.33 GHz | ![]() | Significantly higher turbo clock speed 3.6 GHz |
![]() | Much better overclocked clock speed (Air) 4.46 GHz | ![]() | Much better overclocked clock speed (Water) 4.45 GHz |
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Differences What are the advantages of each
| |||||||
Supports more CPUs in SMP configuration | 8 | vs | 1 | 7 supports more CPUs in SMP configuration | |||
---|---|---|---|---|---|---|---|
Much lower typical power consumption | 77.19W | vs | 212W | 2.7x lower typical power consumption | |||
Significantly more l2 cache | 2 MB | vs | 1 MB | 2x more l2 cache; more data can be stored in the l2 cache for quick access later | |||
Significantly more l3 cache | 18 MB | vs | 8 MB | 2.2x more l3 cache; more data can be stored in the l3 cache for quick access later | |||
Much lower annual home energy cost | 22.89 $/year | vs | 82.69 $/year | 3.6x lower annual home energy cost | |||
Significantly more l3 cache per core | 3 MB/core | vs | 2 MB/core | 50% more l3 cache per core | |||
Much lower annual commercial energy cost | 83.22 $/year | vs | 211.12 $/year | 2.5x lower annual commercial energy cost | |||
More cores | 6 | vs | 4 | 2 more cores; run more applications at once | |||
More threads | 12 | vs | 8 | 4 more threads | |||
More l2 cache per core | 0.33 MB/core | vs | 0.25 MB/core | Around 35% more l2 cache per core | |||
Newer | Mar, 2010 | vs | Jun, 2009 | Release date 9 months later | |||
| |||||||
Much higher clock speed | 3.33 GHz | vs | 1.87 GHz | Around 80% higher clock speed | |||
Significantly higher turbo clock speed | 3.6 GHz | vs | 2.53 GHz | More than 40% higher turbo clock speed | |||
Much better overclocked clock speed (Air) | 4.46 GHz | vs | 1.87 GHz | Around 2.5x better overclocked clock speed (Air) | |||
Much better overclocked clock speed (Water) | 4.45 GHz | vs | 1.87 GHz | Around 2.5x better overclocked clock speed (Water) |
Features Key features of the Xeon L7545 vs Core i7 975
clock speed
Xeon L7545
1.87 GHz
Core i7 975
3.33 GHz
turbo clock speed
Xeon L7545
2.53 GHz
Core i7 975
3.6 GHz
L2 cache
Xeon L7545
2 MB
Core i7 975
1 MB
L3 cache
Xeon L7545
18 MB
Core i7 975
8 MB
overclocked clock speed (air)
Xeon L7545
1.87 GHz
Core i7 975
4.46 GHz
overclocked clock speed (water)
Xeon L7545
1.87 GHz
Core i7 975
4.45 GHz
Specifications Full list of technical specs
summary | Xeon L7545 | vs | Core i7 975 |
---|---|---|---|
Clock speed | 1.87 GHz | 3.33 GHz | |
Turbo clock speed | 2.53 GHz | 3.6 GHz | |
Cores | Hexa core | Quad core | |
Socket type | |||
LGA 1567 | |||
LGA 1366 | |||
features | |||
Has a NX bit | Yes | Yes | |
Has virtualization support | Yes | Yes | |
Instruction set extensions | |||
SSE2 | |||
MMX | |||
SSE3 | |||
SSE | |||
SSE4.1 | |||
SSE4.2 | |||
Supplemental SSE3 | |||
Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
TDP | 95W | 130W | |
Annual home energy cost | 22.89 $/year | 82.69 $/year | |
Annual commercial energy cost | 83.22 $/year | 211.12 $/year | |
Typical power consumption | 77.19W | 212W | |
bus | |||
Architecture | QPI | QPI | |
Number of links | 4 | 1 | |
Data rate | 93,856 MB/s | 25,600 MB/s | |
Transfer rate | 5,860 MT/s | 6,400 MT/s | |
Clock speed | 2,930 MHz | 3,200 MHz |
details | Xeon L7545 | vs | Core i7 975 |
---|---|---|---|
Threads | 12 | 8 | |
L2 cache | 2 MB | 1 MB | |
L2 cache per core | 0.33 MB/core | 0.25 MB/core | |
L3 cache | 18 MB | 8 MB | |
L3 cache per core | 3 MB/core | 2 MB/core | |
Manufacture process | 45 nm | 45 nm | |
Max CPUs | 8 | 1 | |
Voltage range | 0.68 - 1.35V | 0.8 - 1.38V | |
Operating temperature | Unknown - 70°C | 5 - 67.9°C | |
overclocking | |||
Overclocked clock speed | 1.87 GHz | 4.46 GHz | |
Overclocked clock speed (Water) | 1.87 GHz | 4.45 GHz | |
Overclocked clock speed (Air) | 1.87 GHz | 4.46 GHz | |
integrated graphics | |||
GPU | None | None | |
Label | N/A | N/A | |
Latest DirectX | N/A | N/A | |
Number of displays supported | N/A | N/A | |
GPU clock speed | N/A | N/A | |
Turbo clock speed | N/A | N/A | |
3DMark06 | N/A | N/A |
Intel Xeon L7545 ![]() | Intel Core i7 975 ![]() |
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