GPU Comparison
RADEON
AMD Radeon R9 M395X
CORE STATE
Amethyst
VRAM
8 GB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2015
VS
GEFORCE
Tesla K20Xm
CORE STATE
GK110
VRAM
6 GB
CLOCK SPEED
—
TDP
235 W
BUS WIDTH
384 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
R9 M395X
Tesla K20Xm
Core Specs
Shading Units
2,048
2,688
+31.3%
Shaders
2,048
2,688
+31.3%
TMUs
128
224
+75.0%
ROPs
32
48
+50.0%
Compute Units
32
—
Clocks
GPU Clock
723 MHz
732 MHz
Memory Clock
1250 MHz
5 Gbps effective
1300 MHz
5.2 Gbps effective
Memory
Memory Size
8 GB
6 GB
VRAM (MB)
8,192
6,144
-25.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
384 bit
Bandwidth
160.0 GB/s
249.6 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
1536 KB
Performance
Pixel Rate
23.14 GPixel/s
40.99 GPixel/s
Texture Rate
92.54 GTexel/s
164.0 GTexel/s
FP32 (TFLOPS)
2.961 TFLOPS
3.935 TFLOPS
FP64 (TFLOPS)
185.1 GFLOPS (1:16)
1,311.7 GFLOPS (1:3)
FP16 (TFLOPS)
2.961 TFLOPS (1:1)
—
Power
TDP
75 W
235 W
TDP (W)
75
235
+213.3%
Suggested PSU
—
550 W
Power Connectors
None
—
Architecture
Architecture
GCN 3.0
Kepler
GPU Name
Amethyst
GK110
Generation
Gem System
(R9 M300)
Tesla Kepler
(Kxx)
Process Size
28 nm
28 nm
Transistors
5,000 million
7,080 million
Die Size
366 mm²
561 mm²
Foundry
TSMC
TSMC
Density
13.7M / mm²
12.6M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.5
Shader Model
6.5
6.5 (5.1)
Physical
Slot Width
MXM Module
Dual-slot
Length
—
267 mm
10.5 inches
Outputs
Portable Device Dependent
No outputs
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
—
7,699 USD
Production
End-of-life
End-of-life
Predecessor
Solar System
Tesla Fermi
Successor
Polaris Mobile
Tesla Maxwell