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
GEFORCE
Quadro K620M
CORE STATE
GM108S
VRAM
2 GB
CLOCK SPEED
1124 MHz
TDP
30 W
BUS WIDTH
64 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 8790M
Quadro K620M
Core Specs
Shading Units
384
384
0.0%
Shaders
384
384
0.0%
TMUs
24
16
-33.3%
ROPs
8
8
0.0%
Compute Units
6
—
Clocks
Base Clock
850 MHz
1029 MHz
Boost Clock
900 MHz
1124 MHz
Memory Clock
1000 MHz
4 Gbps effective
1001 MHz
2 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
64 bit
Bandwidth
64.00 GB/s
16.02 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SMM)
L2 Cache
256 KB
1024 KB
Performance
Pixel Rate
7.200 GPixel/s
8.992 GPixel/s
Texture Rate
21.60 GTexel/s
17.98 GTexel/s
FP32 (TFLOPS)
691.2 GFLOPS
863.2 GFLOPS
FP64 (TFLOPS)
43.20 GFLOPS (1:16)
26.98 GFLOPS (1:32)
Power
TDP
—
30 W
TDP (W)
—
30
Power Connectors
None
None
Architecture
Architecture
GCN 1.0
Maxwell
GPU Name
Mars
GM108S
Generation
Solar System
(HD 8700M)
Quadro Kepler-M
(Kx200M)
Process Size
28 nm
28 nm
Transistors
950 million
1,020 million
Die Size
77 mm²
77 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
13.2M / mm²
API Support
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1 (1.2)
3.0
CUDA
—
5.0
Shader Model
6.5 (5.1)
6.7 (5.1)
Physical
Slot Width
MXM Module
MXM Module
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
MXM-A (3.0)
MXM-A (3.0)
Other
Production
End-of-life
End-of-life
Predecessor
London
Quadro Fermi-M
Successor
Gem System
Quadro Maxwell-M