AMD Radeon R9 280X2 vs NVIDIA Tesla K40d
GPU · Specs Compare
Graphics Card
Release Date
Unknown
Nov 2013
Generation
Volcanic Islands
Tesla Kepler
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
950 MHz
745 MHz
Boost Clock
1000 MHz
876 MHz
Memory Clock
1500 MHz
1502 MHz
Memory
Memory Size
3GB
12GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
384bit
Bandwidth
288.0GB/s
288.4GB/s
Render Config
Compute Units
32
—
Shading Units
2048
2880
TMUs
128
240
ROPs
32
48
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
768 KB
1536 KB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
52.56 GPixel/s
Texture Rate
128.0 GTexel/s
210.2 GTexel/s
FP32 (float)
4.096 TFLOPS
5.046 TFLOPS
FP64 (double)
1024 GFLOPS
1.682 TFLOPS
Graphics Processor
GPU Name
Tahiti
GK110B
GPU Variant
Tahiti XTL(215-0821065)
—
Architecture
GCN 1.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
4.313 billion
7.08 billion
Die Size
352 mm²
561 mm²
Board Design
TDP
375W
245W
Suggested PSU
750 W
550 W
Outputs
6x mini-DisplayPort 1.2
No outputs
Power Connectors
3x 8-pin
—
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.2.175
Shader Model
5.1
6.5 (5.1)
CUDA
—
3.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.