AMD Radeon R7 265X OEM vs NVIDIA Tesla K40st
GPU Specs Compare
Graphics Card
Release Date
Aug 2014
Nov 2013
Generation
Volcanic Islands
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
900 MHz
-
Boost Clock
925 MHz
-
Memory Clock
1400 MHz
1502 MHz
Memory
Memory Size
2GB
12GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
179.2GB/s
288.4GB/s
Render Config
Compute Units
20
-
Shading Units
1280
2880
TMUs
80
240
ROPs
32
48
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
1536 KB
Theoretical Performance
Pixel Rate
29.60 GPixel/s
34.50 GPixel/s
Texture Rate
74.00 GTexel/s
138.0 GTexel/s
FP32 (float)
2.368 TFLOPS
3.312 TFLOPS
FP64 (double)
148.0 GFLOPS
1104 GFLOPS
Graphics Processor
GPU Name
Curacao
GK110B
GPU Variant
Curacao PRO(215-0848000)
-
Architecture
GCN 1.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
7.08 billion
Die Size
212 mm²
561 mm²
Board Design
TDP
150W
245W
Suggested PSU
450 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin
-
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.1
Shader Model
5.1
5.1
CUDA
-
3.5