Imagination PowerVR GX6850 A8X vs AMD Radeon R6 6CU 464MHz GCN 2 Full Specs

Summary

256 Shaders 475MHz	384 Shaders 464MHz
Shared Memory25.6GB/sLPDDR3	Shared Memory25.6GB/sDDR3
Peak·FP32·FP16 243.2 GFLOPS	Peak·FP32·FP16 356.4 GFLOPS
Form Factor iGPU	Form Factor iGPU
TDP Shared	TDP Shared

Highlights

Peak OPS

Peak OPS FP32 FP16 FP64 Memory Bandwidth

PowerVR GX6850 A8X486.4 GFLOPSFP16

x1.36

Radeon R6 6CU 464MHz GCN 2356.4 GFLOPSFP16

x1

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Theoretical Performance

Clock Speed475MHz UC·Boost·OC	Clock Speed464MHz UC·Boost·OC
Peak OPS 486.4 GFLOPSFP16	Peak OPS 356.4 GFLOPSFP16
FP32 243.2 GFLOPS	FP32 356.4 GFLOPS
FP64 15.2 GFLOPS	FP64 22.27 GFLOPS
Pixel Rate 7.6 GPixel/s	Pixel Rate 3.7 GPixel/s
Texture Rate 7.6 GTexel/s	Texture Rate 11.1 GTexel/s

Core Config

Shaders 256 Shaders	Shaders 384 Shaders
TMUs 16 TMUs	TMUs 24 TMUs
ROPs 16 ROPs	ROPs 8 ROPs
EUs 16 EUs	CUs 6 CUs

Clocks

Boost Clock 475MHz

Boost Clock 464MHz

Cache

L1 -	L1 16KB/CU
L2 Cache -	L2 Cache 128KB shared

Memory

Shared MemoryLPDDR3	Shared MemoryDDR3
Memory Bus 128-bit	Memory Bus 128-bit
Memory Speed 1.6GT/s	Memory Speed 1.6GT/s
Memory Bandwidth 25.6GB/s	Memory Bandwidth 25.6GB/s
ECC No	ECC No

Video Output

Max Resolution 2048x1536	Max Resolution 4096x2160
Refresh Rate Calculator 1920x1080 Resolution1080p FHD Refresh Rate 91Hz	Refresh Rate Calculator 3840x2160 Resolution4K UHD Refresh Rate 64Hz
Multi-Monitor 1	Multi-Monitor 3
DSC Not Supported	DSC Not Supported

API Support

Shader Model -	Shader Model 6.5
DirectX DirectX 10 Direct3D 10_0	DirectX DirectX 12 Direct3D 12_0
OpenGL 3.3 OpenCL 1.2 Vulkan 1.1	OpenGL 4.6 OpenCL 2.1 Vulkan 1.2
-	GFX 7

Encoder

-	Encoder VCE 2.0
Codec -	Codec AVC (H.264)

Decoder

-	Decoder UVD 4.2
Codec -	Codec MPEG-1 MPEG-2 MPEG-4 VC-1 AVC (H.264)

Card

Form Factor iGPU

Form Factor iGPU

Chip

Manufacturer Imagination	Manufacturer AMD
Chip Designer Imagination	Chip Designer AMD
Architecture Rogue	Architecture GCN 2
Family A Series	Family GCN 2
Branding	Branding
Codename Series6XT	Codename Spectre
Chip Variant GXA6850	Chip Variant Spectre SL
Market Segment Tablet	Market Segment Laptop
Release Date Oct 22, 2014	Release Date Jun 1, 2014

Fabrication

Foundry TSMC	Foundry GlobalFoundries
Fabrication Node 20nm	Fabrication Node 28nm
Die Size 128mm²	Die Size 245mm²
Transistor Count 3B	Transistor Count 2.4B
Transistor Density 23 MTr/mm²	Transistor Density 10 MTr/mm²

Images

Used In

CPUs AppleA8X3 Cores	CPUs AMDA10-73002 Cores
Tablets AppleiPad Air 2A8X, Late 2014	Tablets -

Competitors

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AMDRadeon R6 6CU 464MHz GCN 2 vs GPU AMDRadeon R7 6CU 498MHz GCN 2 AMDRadeon R6 6CU 464MHz GCN 2 vs GPU AMDRadeon R6 6CU 533MHz GCN 2 AMDRadeon R6 6CU 464MHz GCN 2 vs GPU AMDRadeon R6 6CU 576MHz GCN 2 Show 12 more