AMD Phenom II X4 840T vs AMD Phenom II X6 1045T

Comparative analysis of AMD Phenom II X4 840T and AMD Phenom II X6 1045T processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

AMD Phenom II X4 840T

AMD Phenom II X6 1045T

Differences

Reasons to consider the AMD Phenom II X6 1045T

2 more cores, run more applications at once: 6 vs 4
Around 10% higher clock speed: 3.2 GHz vs 2.9 GHz
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 1% better performance in PassMark - Single thread mark: 1285 vs 1272
Around 37% better performance in PassMark - CPU mark: 3227 vs 2360
Around 46% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 5.255 vs 3.606
Around 51% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 14.359 vs 9.486
Around 49% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.277 vs 0.186

Specifications (specs)
Number of cores	6 vs 4
Maximum frequency	3.2 GHz vs 2.9 GHz
L1 cache	768 KB vs 128 KB (per core)
L2 cache	3 MB vs 512 KB (per core)
Benchmarks
PassMark - Single thread mark	1285 vs 1272
PassMark - CPU mark	3227 vs 2360
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	5.255 vs 3.606
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	14.359 vs 9.486
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.277 vs 0.186

Compare benchmarks

CPU 1: AMD Phenom II X4 840T
CPU 2: AMD Phenom II X6 1045T

PassMark - Single thread mark

CPU 1

CPU 2

1272

1285

PassMark - CPU mark

CPU 1

CPU 2

2360

3227

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

3.606

5.255

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

9.486

14.359

CompuBench 1.5 Desktop - T-Rex (Frames/s)

CPU 1

CPU 2

0.186

0.277

Name	AMD Phenom II X4 840T	AMD Phenom II X6 1045T
PassMark - Single thread mark	1272	1285
PassMark - CPU mark	2360	3227
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	3.606	5.255
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	9.486	14.359
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.186	0.277
Geekbench 4 - Single Core		1915
Geekbench 4 - Multi-Core		7420
CompuBench 1.5 Desktop - Video Composition (Frames/s)		0.376
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		5.413

Compare specifications (specs)

	AMD Phenom II X4 840T	AMD Phenom II X6 1045T
Essentials
Architecture codename	Zosma	Thuban
Launch date	September 2010	September 2010
Launch price (MSRP)	$80	$175
Place in performance rating	2713	2223
Price now	$69.99	$175
Value for money (0-100)	15.15	8.11
Vertical segment	Desktop	Desktop
Family		AMD Phenom
OPN PIB		HDT45TWFGRBOX
OPN Tray		HDT45TWFK6DGR
Series		AMD Phenom II X6
Performance
64 bit support
Die size	346 mm	346 mm
L1 cache	128 KB (per core)	768 KB
L2 cache	512 KB (per core)	3 MB
L3 cache	6144 KB (shared)	6 MB
Manufacturing process technology	45 nm	45 nm
Maximum frequency	2.9 GHz	3.2 GHz
Number of cores	4	6
Transistor count	904 million	904 million
Base frequency		2.7 GHz
Maximum core temperature		71°C
Unlocked
Memory
Supported memory types	DDR3	DDR3
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	AM3	AM3
Thermal Design Power (TDP)	95 Watt	95 Watt
Virtualization
AMD Virtualization (AMD-V™)