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 K620
CORE STATE
GM107
VRAM
2 GB
CLOCK SPEED
1124 MHz
TDP
45 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 8790M
Quadro K620
Core Specs
Shading Units
384
384
0.0%
Shaders
384
384
0.0%
TMUs
24
24
0.0%
ROPs
8
16
+100.0%
Compute Units
6
—
Clocks
Base Clock
850 MHz
1058 MHz
Boost Clock
900 MHz
1124 MHz
Memory Clock
1000 MHz
4 Gbps effective
900 MHz
1800 Mbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
128 bit
Bandwidth
64.00 GB/s
28.80 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SMM)
L2 Cache
256 KB
2 MB
Performance
Pixel Rate
7.200 GPixel/s
17.98 GPixel/s
Texture Rate
21.60 GTexel/s
26.98 GTexel/s
FP32 (TFLOPS)
691.2 GFLOPS
863.2 GFLOPS
FP64 (TFLOPS)
43.20 GFLOPS (1:16)
26.98 GFLOPS (1:32)
Power
TDP
—
45 W
TDP (W)
—
45
Suggested PSU
—
200 W
Power Connectors
None
None
Architecture
Architecture
GCN 1.0
Maxwell
GPU Name
Mars
GM107
Generation
Solar System
(HD 8700M)
Quadro Kepler
(Kx200)
Process Size
28 nm
28 nm
Transistors
950 million
1,870 million
Die Size
77 mm²
148 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
12.6M / 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
Single-slot
Length
—
160 mm
6.3 inches
Height
—
69 mm
2.7 inches
Outputs
Portable Device Dependent
1x DVI1x DisplayPort 1.2
Bus Interface
MXM-A (3.0)
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
London
Quadro Fermi
Successor
Gem System
Quadro Maxwell