CPUBoss Review Our evaluation of 2500K vs 980


Benchmark performance using all cores

Cinebench R11.5, Cinebench R10 32-bit, PassMark and GeekBench (32-bit)

Single-core Performance

Individual core benchmark performance

Cinebench R11.5 (1-core), Cinebench R10 32-bit (1-core) and 1 more


How much speed can you get out of the processor?

Unlocked, Maximum Overclocked Clock Speed (Air) and 2 more


Are you paying a premium for performance?

Performance Per Dollar

No winner declared

Too close to call

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Differences What are the advantages of each

Front view of Intel Core i5 2500K

Reasons to consider the
Intel Core i5 2500K

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Much better 3DMark11 physics score 6,230 vs 4,260 More than 45% better 3DMark11 physics score
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Better PassMark (Single core) score 1,863 vs 1,322 More than 40% better PassMark (Single core) score
Lower typical power consumption 112.55W vs 133.74W More than 15% lower typical power consumption
Better geekbench (32-bit) score 10,319 vs 6,291 Around 65% better geekbench (32-bit) score
Better PassMark score 6,383 vs 4,663 More than 35% better PassMark score
Better overclocked clock speed (Air) 5.01 GHz vs 4.28 GHz More than 15% better overclocked clock speed (Air)
Better cinebench r10 32Bit 1-core score 5,860 vs 4,289 More than 35% better cinebench r10 32Bit 1-core score
Better performance per watt 5.81 pt/W vs 3.56 pt/W Around 65% better performance per watt
Better cinebench r10 32Bit score 20,381 vs 15,622 More than 30% better cinebench r10 32Bit score
Significantly lower annual commercial energy cost 110.03 $/year vs 144.19 $/year Around 25% lower annual commercial energy cost
Better overclocked clock speed (Water) 4.63 GHz vs 3.7 GHz More than 25% better overclocked clock speed (Water)
Front view of AMD Phenom II X4 Black 980

Reasons to consider the
AMD Phenom II X4 Black 980

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Higher clock speed 3.7 GHz vs 3.3 GHz More than 10% higher clock speed
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
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Newer May, 2011 vs Jan, 2011 Release date 4 months later

Benchmarks Real world tests of Core i5 2500K vs Phenom II X4 Black 980

GeekBench (32-bit) Data courtesy Primate Labs

3D Mark 11 (Physics)

Cinebench R11.5

Cinebench R11.5 (Single Core)

sysmark 2007 (overall)

PassMark Data courtesy PassMark

Reviews Word on the street

Core i5 2500K  vs Phenom II X4 Black 980 

In terms of 3D performance, the detail spec changes include an upgrade from DX10 to DX10.
Core i5 2500K

Specifications Full list of technical specs


Core i5 2500K  vs
Phenom II X4 Black 980 
Clock speed 3.3 GHz 3.7 GHz
Cores Quad core Quad core
Socket type
LGA 1155
Is unlocked Yes Yes


Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 125W
Annual home energy cost 41.29 $/year 39.65 $/year
Annual commercial energy cost 110.03 $/year 144.19 $/year
Performance per watt 5.81 pt/W 3.56 pt/W
Peak power consumption 125.6W 164.6W
Typical power consumption 112.55W 133.74W


Core i5 2500K  vs
Phenom II X4 Black 980 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 6 MB 6 MB
L3 cache per core 1.5 MB/core 1.5 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 1


Overclock popularity 3,179 29
Overclocked clock speed 5.01 GHz 4.28 GHz
Overclocked clock speed (Water) 4.63 GHz 3.7 GHz
Overclocked clock speed (Air) 5.01 GHz 4.28 GHz

integrated graphics

Label Intel® HD Graphics 3000 N/A
Latest DirectX 10.1 N/A
Number of displays supported 2 N/A
GPU clock speed 850 MHz N/A
Turbo clock speed 1,100 MHz N/A
3DMark06 5,275 N/A
Intel Core i5 2500K
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AMD Phenom II X4 Black 980
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