GPU Comparison
RADEON
AMD 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
VS
RADEON
Radeon Pro 455
CORE STATE
Baffin
VRAM
2 GB
CLOCK SPEED
—
TDP
35 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
HD 8790M
Pro 455
Core Specs
Shading Units
384
768
+100.0%
Shaders
384
768
+100.0%
TMUs
24
48
+100.0%
ROPs
8
16
+100.0%
Compute Units
6
12
+100.0%
Clocks
Base Clock
850 MHz
—
Boost Clock
900 MHz
—
GPU Clock
—
855 MHz
Memory Clock
1000 MHz
4 Gbps effective
1270 MHz
5.1 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
64.00 GB/s
81.28 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
1024 KB
Performance
Pixel Rate
7.200 GPixel/s
13.68 GPixel/s
Texture Rate
21.60 GTexel/s
41.04 GTexel/s
FP32 (TFLOPS)
691.2 GFLOPS
1,313.3 GFLOPS
FP64 (TFLOPS)
43.20 GFLOPS (1:16)
82.08 GFLOPS (1:16)
FP16 (TFLOPS)
—
1,313.3 GFLOPS (1:1)
Power
TDP
—
35 W
TDP (W)
—
35
Power Connectors
None
None
Architecture
Architecture
GCN 1.0
GCN 4.0
GPU Name
Mars
Baffin
Generation
Solar System
(HD 8700M)
Radeon Pro Mac
(400 Series)
Process Size
28 nm
14 nm
Transistors
950 million
3,000 million
Die Size
77 mm²
123 mm²
Foundry
TSMC
GlobalFoundries
Density
12.3M / mm²
24.4M / mm²
API Support
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.3
OpenCL
2.1 (1.2)
2.1
Shader Model
6.5 (5.1)
6.7
Physical
Slot Width
MXM Module
MXM Module
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
MXM-A (3.0)
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
London
—
Successor
Gem System
—