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 Pro Vega 56
CORE STATE
Vega 10
VRAM
8 GB
CLOCK SPEED
1250 MHz
TDP
210 W
BUS WIDTH
2048 bit
ARCHITECTURE
GCN 5.0
PROCESS
14 nm
LAUNCH DATE
2017
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
Pro Vega 56
Core Specs
Shading Units
960
3,584
+273.3%
Shaders
960
3,584
+273.3%
TMUs
48
224
+366.7%
ROPs
32
64
+100.0%
Compute Units
12
56
+366.7%
Clocks
Base Clock
—
1138 MHz
Boost Clock
—
1250 MHz
GPU Clock
800 MHz
—
Memory Clock
1050 MHz
4.2 Gbps effective
786 MHz
1572 Mbps effective
Memory
Memory Size
2 GB
8 GB
VRAM (MB)
2,048
8,192
+300.0%
Memory Type
GDDR5
HBM2
Memory Bus
256 bit
2048 bit
Bandwidth
134.4 GB/s
402.4 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
4 MB
Performance
Pixel Rate
25.60 GPixel/s
80.00 GPixel/s
Texture Rate
38.40 GTexel/s
280.0 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
8.960 TFLOPS
FP64 (TFLOPS)
—
560.0 GFLOPS (1:16)
FP16 (TFLOPS)
—
17.92 TFLOPS (2:1)
Power
TDP
254 W
210 W
TDP (W)
254
210
-17.3%
Suggested PSU
600 W
—
Power Connectors
2x 8-pin
None
Architecture
Architecture
TeraScale 2
GCN 5.0
GPU Name
Barts
Vega 10
Generation
Northern Islands
(HD 6800)
Radeon Pro Mac
(Vega Series)
Process Size
40 nm
14 nm
Transistors
1,700 million
12,500 million
Die Size
255 mm²
495 mm²
Foundry
TSMC
GlobalFoundries
Density
6.7M / mm²
25.3M / mm²
API Support
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
Vulkan
—
1.3
OpenCL
1.2
2.1
Shader Model
5.0
6.7
Physical
Slot Width
Dual-slot
IGP
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
1x HDMI 2.0b3x DisplayPort 1.4a
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Evergreen
—
Successor
Southern Islands
—