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 W5500X
CORE STATE
Navi 14
VRAM
8 GB
CLOCK SPEED
1757 MHz
TDP
125 W
BUS WIDTH
128 bit
ARCHITECTURE
RDNA 1.0
PROCESS
7 nm
LAUNCH DATE
2019
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
Pro W5500X
Core Specs
Shading Units
960
1,536
+60.0%
Shaders
960
1,536
+60.0%
TMUs
48
96
+100.0%
ROPs
32
32
0.0%
Compute Units
12
24
+100.0%
Clocks
Base Clock
—
1187 MHz
Boost Clock
—
1757 MHz
GPU Clock
800 MHz
—
Memory Clock
1050 MHz
4.2 Gbps effective
1750 MHz
14 Gbps effective
Memory
Memory Size
2 GB
8 GB
VRAM (MB)
2,048
8,192
+300.0%
Memory Type
GDDR5
GDDR6
Memory Bus
256 bit
128 bit
Bandwidth
134.4 GB/s
224.0 GB/s
Cache
L1 Cache
8 KB (per CU)
—
L2 Cache
512 KB
2 MB
Performance
Pixel Rate
25.60 GPixel/s
56.22 GPixel/s
Texture Rate
38.40 GTexel/s
168.7 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
5.398 TFLOPS
FP64 (TFLOPS)
—
337.3 GFLOPS (1:16)
FP16 (TFLOPS)
—
10.80 TFLOPS (2:1)
Power
TDP
254 W
125 W
TDP (W)
254
125
-50.8%
Suggested PSU
600 W
300 W
Power Connectors
2x 8-pin
—
Architecture
Architecture
TeraScale 2
RDNA 1.0
GPU Name
Barts
Navi 14
Generation
Northern Islands
(HD 6800)
Radeon Pro Mac
(Navi Series)
Process Size
40 nm
7 nm
Transistors
1,700 million
6,400 million
Die Size
255 mm²
158 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
40.5M / mm²
API Support
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
Vulkan
—
1.4
OpenCL
1.2
2.1
Shader Model
5.0
6.8
Physical
Slot Width
Dual-slot
Dual-slot
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
2x HDMI 2.0b
Bus Interface
PCIe 2.0 x16
Apple MPX
Other
Launch Price
—
599 USD
Production
End-of-life
End-of-life
Predecessor
Evergreen
—
Successor
Southern Islands
—