AMD A10-7800 Kaveri APU Evaluation

Although AMD promised many new APUs when it unveiled its Kaveri architecture in January, the company's product range was limited to $ 160 A10-7700,000 and $ 170 A10-7850,000 without the A8-7600 that we released seven months ago or one Others who have tested have been available in retail budget kaveri chips for that matter.

It's a bit confusing to see the company launch an updated version of a range that has never been properly launched, but on the plus side, AMD's Kaveri update seems a little more extensive than Intel's recent Haswell update, if only by itself because of the fact that the A8- 7600 is due to finally appear in retail stores.

Along with the A8-7600, which will be available for $ 100, AMD will also ship the A6-7400K for $ 77 and the A10-7800 for $ 155. The latter is noteworthy because it has 45/65 W TDP modes like the A8-7600, except that it gets a Matured R7 GPU with 8 CUs with 512 SPUs and 32 TAUs like the unlocked A10-7850K.

A10-7850K A10-7800 A10-7700K A8-7600 A6-7400K
Computing cores 12
(4 CPU + 8 GPU)
12
(4 CPU + 8 GPU)
10th
(4 CPU + 6 GPU)
10th
(4 CPU + 6 GPU)
6
(2 CPU + 4 GPU)
Maximum turbo / CPU frequency 4.0 / 3.7 GHz 3.9 / 3.5 GHz 3.8 / 3.4 GHz 3.8 / 3.1 GHz 3.9 / 3.5 GHz
HSA functions Yes Yes Yes Yes Yes
AMD TrueAudio Yes Yes Yes Yes Yes
Coat support Yes Yes Yes Yes Yes
AMD configurable TDP Yes Optimized (45w) Yes Optimized (45w) Optimized (45w)
Proposed configuration Radeon R9 270, A88X, 8 GB DDR3-2400 Radeon R7 265, A88X, 8 GB DDR3-2133 Radeon R7 260X, A78, 8 GB DDR3-2133 Radeon R7 260, A78, 8 GB DDR3-2133 A58, 8 GB DDR3-1866
Price $ 173 $ 155 $ 153 $ 101 $ 77

All models support DDR3-2133 memory and the new Socket FM2 + with chipset support for PCIe 3.0. With Kaveri bringing some pretty significant changes, it's not surprising that a socket update was in order.

Instead of going into Kaveri architecture again, please read our article published in January. With that said, let's start testing right away.

System specifications and memory bandwidth

AMD APU system specifications

  • AMD A10-7800 (3.5 GHz – 3.9 GHz)
  • AMD A8-7600 (3.1 GHz – 3.8 GHz)
  • AMD A4-4000 (3.0 GHz – 3.2 GHz)
  • Asrock FM2A88X Extreme6 +
  • 8 GB DDR3 RAM
  • Radeon R9 280X
  • Samsung SSD 850 Pro 512 GB SSD
  • SilverStone Essential Gold 750w
  • Windows 8.1 Pro 64-bit

AMD FX system specifications

  • AMD FX-8350 (4.2 GHz – 4.40 GHz)
  • AMD FX-6350 (3.9 GHz – 4.20 GHz)
  • AMD FX-4350 (4.0 GHz – 4.20 GHz)
  • Asrock Fatal1ty 990FX Professional
  • 8 GB DDR3 RAM
  • Radeon R9 280X
  • Samsung SSD 850 Pro 512 GB SSD
  • SilverStone Essential Gold 750w
  • Windows 8.1 Pro 64-bit

Haswell system specifications

  • Intel Core i7-4790K (4.0 GHz – 4.4 GHz)
  • Intel Core i5-4670K (3.4 GHz – 3.8 GHz)
  • Intel Core i3-4130 (3.4 GHz)
  • Intel Pentium G3258 (3.2 GHz)
  • Intel Pentium G3220 (3.0 GHz)
  • Intel Celeron G1820 (2.7 GHz)
  • Asrock Z97 Extreme6
  • 8 GB DDR3 RAM
  • Radeon R9 280X
  • Samsung SSD 850 Pro 512 GB SSD
  • SilverStone Essential Gold 750w
  • Windows 8.1 Pro 64-bit

The AMD A10-7800 was tested with dual-channel DDR3-2133 memory, which enabled a bandwidth of 14.2 GB / s, slightly faster than the A8-7600.

The cache performance of the A10-7800 is also very similar to that of the A8-7600, while the L1 cache is considerably slower than that of the Core i3-4130.

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