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 RX Vega M GL
CORE STATE
Polaris 22
VRAM
4 GB
CLOCK SPEED
1011 MHz
TDP
65 W
BUS WIDTH
1024 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
RX Vega M GL
Core Specs
Shading Units
960
1,280
+33.3%
Shaders
960
1,280
+33.3%
TMUs
48
80
+66.7%
ROPs
32
32
0.0%
Compute Units
12
20
+66.7%
Clocks
Base Clock
—
931 MHz
Boost Clock
—
1011 MHz
GPU Clock
800 MHz
—
Memory Clock
1050 MHz
4.2 Gbps effective
700 MHz
1400 Mbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
HBM2
Memory Bus
256 bit
1024 bit
Bandwidth
134.4 GB/s
179.2 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Performance
Pixel Rate
25.60 GPixel/s
32.35 GPixel/s
Texture Rate
38.40 GTexel/s
80.88 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
2.588 TFLOPS
FP64 (TFLOPS)
—
161.8 GFLOPS (1:16)
FP16 (TFLOPS)
—
2.588 TFLOPS (1:1)
Power
TDP
254 W
65 W
TDP (W)
254
65
-74.4%
Suggested PSU
600 W
—
Power Connectors
2x 8-pin
—
Architecture
Architecture
TeraScale 2
GCN 4.0
GPU Name
Barts
Polaris 22
Generation
Northern Islands
(HD 6800)
Vega
(Vega M)
Process Size
40 nm
14 nm
Transistors
1,700 million
5,000 million
Die Size
255 mm²
208 mm²
Foundry
TSMC
GlobalFoundries
Density
6.7M / mm²
24.0M / mm²
API Support
DirectX
11.2 (11_0)
12 (12_0)
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
Portable Device Dependent
Bus Interface
PCIe 2.0 x16
IGP
Other
Production
End-of-life
End-of-life
Predecessor
Evergreen
—
Successor
Southern Islands
—