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 Pro 555
CORE STATE
Polaris 21
VRAM
2 GB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2017
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7790
Pro 555
Core Specs
Shading Units
896
768
-14.3%
Shaders
896
768
-14.3%
TMUs
56
48
-14.3%
ROPs
16
16
0.0%
Compute Units
14
12
-14.3%
Clocks
GPU Clock
1000 MHz
850 MHz
Memory Clock
1500 MHz
6 Gbps effective
1275 MHz
5.1 Gbps effective
Memory
Memory Size
1024 MB
2 GB
VRAM (MB)
1,024
2,048
+100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
96.00 GB/s
81.60 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
1024 KB
Performance
Pixel Rate
16.00 GPixel/s
13.60 GPixel/s
Texture Rate
56.00 GTexel/s
40.80 GTexel/s
FP32 (TFLOPS)
1.792 TFLOPS
1,305.6 GFLOPS
FP64 (TFLOPS)
112.0 GFLOPS (1:16)
81.60 GFLOPS (1:16)
FP16 (TFLOPS)
—
1,305.6 GFLOPS (1:1)
Power
TDP
85 W
75 W
TDP (W)
85
75
-11.8%
Suggested PSU
250 W
—
Power Connectors
1x 6-pin
None
Architecture
Architecture
GCN 2.0
GCN 4.0
GPU Name
Bonaire
Polaris 21
Generation
Southern Islands
(HD 7700)
Radeon Pro Mac
(500 Series)
Process Size
28 nm
14 nm
Transistors
2,080 million
3,000 million
Die Size
160 mm²
123 mm²
Foundry
TSMC
GlobalFoundries
Density
13.0M / mm²
24.4M / 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
IGP
Length
183 mm
7.2 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
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
—
Successor
Sea Islands
—