GPU Comparison
RADEON
AMD Radeon 550X
CORE STATE
Lexa
VRAM
2 GB
CLOCK SPEED
1218 MHz
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2019
VS
RADEON
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
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
550X
HD 6850 X2
Core Specs
Shading Units
512
960
+87.5%
Shaders
512
960
+87.5%
TMUs
32
48
+50.0%
ROPs
16
32
+100.0%
Compute Units
8
12
+50.0%
Clocks
Base Clock
1082 MHz
—
Boost Clock
1218 MHz
—
GPU Clock
—
800 MHz
Memory Clock
1750 MHz
7 Gbps effective
1050 MHz
4.2 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
256 bit
Bandwidth
112.0 GB/s
134.4 GB/s
Cache
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
19.49 GPixel/s
25.60 GPixel/s
Texture Rate
38.98 GTexel/s
38.40 GTexel/s
FP32 (TFLOPS)
1,247.2 GFLOPS
1.536 TFLOPS
FP64 (TFLOPS)
77.95 GFLOPS (1:16)
—
FP16 (TFLOPS)
1,247.2 GFLOPS (1:1)
—
Power
TDP
50 W
254 W
TDP (W)
50
254
+408.0%
Suggested PSU
250 W
600 W
Power Connectors
None
2x 8-pin
Architecture
Architecture
GCN 4.0
TeraScale 2
GPU Name
Lexa
Barts
Generation
Polaris
(RX 500X)
Northern Islands
(HD 6800)
Process Size
14 nm
40 nm
Transistors
2,200 million
1,700 million
Die Size
103 mm²
255 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
6.7M / mm²
API Support
DirectX
12 (12_0)
11.2 (11_0)
OpenGL
4.6
4.4
Vulkan
1.3
—
OpenCL
2.1
1.2
Shader Model
6.7
5.0
Physical
Slot Width
Dual-slot
Dual-slot
Length
145 mm
5.7 inches
—
Outputs
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
Evergreen
Successor
Vega
Southern Islands