GPU Comparison
RADEON
AMD Radeon HD 6850 X2
CORE STATE
Barts
VRAM
2 GB
CLOCK SPEED
—
TDP
254 W
BUS WIDTH
256 bit
ARCHITECTURE
TeraScale 2
PROCESS
40 nm
LAUNCH DATE
2011
VS
RADEON
Radeon R8 M445DX
CORE STATE
Meso
VRAM
System Shared
CLOCK SPEED
1021 MHz
TDP
—
BUS WIDTH
System Shared
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
R8 M445DX
Core Specs
Shading Units
960
320
-66.7%
Shaders
960
320
-66.7%
TMUs
48
20
-58.3%
ROPs
32
8
-75.0%
Compute Units
12
5
-58.3%
Clocks
Base Clock
—
780 MHz
Boost Clock
—
1021 MHz
GPU Clock
800 MHz
—
Memory Clock
1050 MHz
4.2 Gbps effective
System Shared
Memory
Memory Size
2 GB
System Shared
VRAM (MB)
2,048
—
Memory Type
GDDR5
System Shared
Memory Bus
256 bit
System Shared
Bandwidth
134.4 GB/s
System Dependent
Cache
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
128 KB
Performance
Pixel Rate
25.60 GPixel/s
8.168 GPixel/s
Texture Rate
38.40 GTexel/s
20.42 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
653.4 GFLOPS
FP64 (TFLOPS)
—
40.84 GFLOPS (1:16)
FP16 (TFLOPS)
—
653.4 GFLOPS (1:1)
Power
TDP
254 W
—
TDP (W)
254
—
Suggested PSU
600 W
—
Power Connectors
2x 8-pin
—
Architecture
Architecture
TeraScale 2
GCN 3.0
GPU Name
Barts
Meso
Generation
Northern Islands
(HD 6800)
Gem System Hybrid
(Rx M400)
Process Size
40 nm
28 nm
Transistors
1,700 million
1,550 million
Die Size
255 mm²
125 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
12.4M / mm²
API Support
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
Vulkan
—
1.2.170
OpenCL
1.2
2.1
Shader Model
5.0
6.5
Physical
Slot Width
Dual-slot
IGP
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Portable Device Dependent
Bus Interface
PCIe 2.0 x16
IGP
Other
Production
End-of-life
End-of-life
Predecessor
Evergreen
—
Successor
Southern Islands
—