AMD Radeon R9 270X vs NVIDIA Tesla K20c
GPU · Specs Compare
Graphics Card
Release Date
Oct 2013
Nov 2012
Generation
Volcanic Islands
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1000 MHz
—
Boost Clock
1050 MHz
—
Memory Clock
1400 MHz
1300 MHz
Memory
Memory Size
2GB
5GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
320bit
Bandwidth
179.2GB/s
208.0GB/s
Render Config
Compute Units
20
—
Shading Units
1280
2496
TMUs
80
208
ROPs
32
40
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
1280 KB
Theoretical Performance
Pixel Rate
33.60 GPixel/s
36.71 GPixel/s
Texture Rate
84.00 GTexel/s
146.8 GTexel/s
FP32 (float)
2.688 TFLOPS
3.524 TFLOPS
FP64 (double)
168.0 GFLOPS
1175 GFLOPS
Graphics Processor
GPU Name
Curacao
GK110
GPU Variant
Curacao XT(215-0848004)
GK110-885-KA-A1
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
180W
225W
Suggested PSU
450 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.1
Shader Model
5.1
5.1
CUDA
—
3.5
Benchmark
3DMark Time Spy
1,769
—
OctaneBench
—
55
▲ Specs Compare
Data sourced from official specifications and benchmark tests.