GPU Comparison
RADEON
AMD Radeon HD 7790
CORE STATE
Bonaire
VRAM
1024 MB
CLOCK SPEED
—
TDP
85 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 2.0
PROCESS
28 nm
LAUNCH DATE
2013
VS
RADEON
Radeon RX 550X
CORE STATE
Lexa
VRAM
4 GB
CLOCK SPEED
1183 MHz
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7790
RX 550X
Core Specs
Shading Units
896
512
-42.9%
Shaders
896
512
-42.9%
TMUs
56
32
-42.9%
ROPs
16
16
0.0%
Compute Units
14
8
-42.9%
Clocks
Base Clock
—
1100 MHz
Boost Clock
—
1183 MHz
GPU Clock
1000 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
1500 MHz
6 Gbps effective
Memory
Memory Size
1024 MB
4 GB
VRAM (MB)
1,024
4,096
+300.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
96.00 GB/s
96.00 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
512 KB
Performance
Pixel Rate
16.00 GPixel/s
18.93 GPixel/s
Texture Rate
56.00 GTexel/s
37.86 GTexel/s
FP32 (TFLOPS)
1.792 TFLOPS
1,211.4 GFLOPS
FP64 (TFLOPS)
112.0 GFLOPS (1:16)
75.71 GFLOPS (1:16)
FP16 (TFLOPS)
—
1,211.4 GFLOPS (1:1)
Power
TDP
85 W
50 W
TDP (W)
85
50
-41.2%
Suggested PSU
250 W
250 W
Power Connectors
1x 6-pin
None
Architecture
Architecture
GCN 2.0
GCN 4.0
GPU Name
Bonaire
Lexa
Generation
Southern Islands
(HD 7700)
Polaris
(RX 500X)
Process Size
28 nm
14 nm
Transistors
2,080 million
2,200 million
Die Size
160 mm²
103 mm²
Foundry
TSMC
GlobalFoundries
Density
13.0M / mm²
21.4M / mm²
API Support
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.3
OpenCL
2.1
2.1
Shader Model
6.5
6.7
Physical
Slot Width
Dual-slot
Dual-slot
Length
183 mm
7.2 inches
145 mm
5.7 inches
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Other
Launch Price
149 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
Polaris
Successor
Sea Islands
Vega