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 8790M
CORE STATE
Mars
VRAM
2 GB
CLOCK SPEED
900 MHz
TDP
—
BUS WIDTH
128 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
550X
HD 8790M
Core Specs
Shading Units
512
384
-25.0%
Shaders
512
384
-25.0%
TMUs
32
24
-25.0%
ROPs
16
8
-50.0%
Compute Units
8
6
-25.0%
Clocks
Base Clock
1082 MHz
850 MHz
Boost Clock
1218 MHz
900 MHz
Memory Clock
1750 MHz
7 Gbps effective
1000 MHz
4 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
128 bit
Bandwidth
112.0 GB/s
64.00 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
256 KB
Performance
Pixel Rate
19.49 GPixel/s
7.200 GPixel/s
Texture Rate
38.98 GTexel/s
21.60 GTexel/s
FP32 (TFLOPS)
1,247.2 GFLOPS
691.2 GFLOPS
FP64 (TFLOPS)
77.95 GFLOPS (1:16)
43.20 GFLOPS (1:16)
FP16 (TFLOPS)
1,247.2 GFLOPS (1:1)
—
Power
TDP
50 W
—
TDP (W)
50
—
Suggested PSU
250 W
—
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
GCN 1.0
GPU Name
Lexa
Mars
Generation
Polaris
(RX 500X)
Solar System
(HD 8700M)
Process Size
14 nm
28 nm
Transistors
2,200 million
950 million
Die Size
103 mm²
77 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
12.3M / mm²
API Support
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.170
OpenCL
2.1
2.1 (1.2)
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
Dual-slot
MXM Module
Length
145 mm
5.7 inches
—
Outputs
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
MXM-A (3.0)
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
London
Successor
Vega
Gem System