GPU Comparison
RADEON
AMD Radeon R7 Graphics
CORE STATE
Spectre Lite
VRAM
System Shared
CLOCK SPEED
—
TDP
25 W
BUS WIDTH
System Shared
ARCHITECTURE
GCN 2.0
PROCESS
28 nm
LAUNCH DATE
2014
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
R7 Graphics
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
—
1029 MHz
Boost Clock
—
1124 MHz
GPU Clock
720 MHz
—
Memory Clock
System Shared
1001 MHz
2 Gbps effective
Memory
Memory Size
System Shared
2 GB
VRAM (MB)
—
2,048
Memory Type
System Shared
DDR3
Memory Bus
System Shared
64 bit
Bandwidth
System Dependent
16.02 GB/s
Cache
L1 Cache
—
64 KB (per SMM)
L2 Cache
—
1024 KB
Performance
Pixel Rate
5.760 GPixel/s
8.992 GPixel/s
Texture Rate
17.28 GTexel/s
17.98 GTexel/s
FP32 (TFLOPS)
553.0 GFLOPS
863.2 GFLOPS
FP64 (TFLOPS)
34.56 GFLOPS (1:16)
26.98 GFLOPS (1:32)
Power
TDP
25 W
30 W
TDP (W)
25
30
+20.0%
Power Connectors
—
None
Architecture
Architecture
GCN 2.0
Maxwell
GPU Name
Spectre Lite
GM108S
Generation
GCN 2.0 IGP
(Kaveri)
Quadro Kepler-M
(Kx200M)
Process Size
28 nm
28 nm
Transistors
2,410 million
1,020 million
Die Size
245 mm²
77 mm²
Foundry
GlobalFoundries
TSMC
Density
9.8M / mm²
13.2M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1
3.0
CUDA
—
5.0
Shader Model
6.5
6.7 (5.1)
Physical
Slot Width
IGP
MXM Module
Outputs
Motherboard Dependent
Portable Device Dependent
Bus Interface
IGP
MXM-A (3.0)
Other
Production
End-of-life
End-of-life
Predecessor
TeraScale 3 IGP
Quadro Fermi-M
Successor
GCN 3.0 IGP
Quadro Maxwell-M