NVIDIA Tesla K40t vs AMD Radeon HD 8990 OEM
GPU Specs Compare
Graphics Card
Release Date
Nov 2013
Apr 2013
Generation
Tesla Kepler
Sea Islands
Type
Professional
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
745 MHz
950 MHz
Boost Clock
876 MHz
1000 MHz
Memory Clock
1502 MHz
1500 MHz
Memory
Memory Size
12GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
384bit
Bandwidth
288.4GB/s
288.0GB/s
Render Config
Shading Units
2880
2048
TMUs
240
128
ROPs
48
32
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
1536 KB
768 KB
Compute Units
-
32
Theoretical Performance
Pixel Rate
52.56 GPixel/s
32.00 GPixel/s
Texture Rate
210.2 GTexel/s
128.0 GTexel/s
FP32 (float)
5.046 TFLOPS
4.096 TFLOPS
FP64 (double)
1.682 TFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
GK110B
Malta
Architecture
Kepler
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
4.313 billion
Die Size
561 mm²
365 mm²
GPU Variant
-
Malta XT(215-0849026)
Board Design
TDP
245W
375W
Suggested PSU
550 W
750 W
Outputs
No outputs
1x DVI4x mini-DisplayPort 1.2
Power Connectors
-
2x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.2.175
1.2
CUDA
3.5
-
Shader Model
6.5 (5.1)
5.1