NVIDIA Tesla K20X vs AMD Radeon HD 7790
GPU · Specs Compare
Graphics Card
Release Date
Nov 2012
Mar 2013
Generation
Tesla
Southern Islands
Type
Professional
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1300 MHz
1500 MHz
Memory
Memory Size
6GB
1024MB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
128bit
Bandwidth
249.6GB/s
96.00GB/s
Render Config
Shading Units
2688
896
TMUs
224
56
ROPs
48
16
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
1536 KB
256 KB
Compute Units
—
14
Theoretical Performance
Pixel Rate
40.99 GPixel/s
16.00 GPixel/s
Texture Rate
164.0 GTexel/s
56.00 GTexel/s
FP32 (float)
3.935 TFLOPS
1.792 TFLOPS
FP64 (double)
1312 GFLOPS
112.0 GFLOPS
Graphics Processor
GPU Name
GK110
Bonaire
Architecture
Kepler
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
2.08 billion
Die Size
561 mm²
160 mm²
GPU Variant
—
Bonaire XT(215-0839039)
Board Design
TDP
235W
85W
Suggested PSU
550 W
250 W
Outputs
No outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
1x 6-pin + 1x 8-pin
1x 6-pin
Graphics Features
DirectX
12 (11_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.0
Vulkan
1.1
1.2
CUDA
3.5
—
Shader Model
5.1
6.3
Benchmark
3DMark Time Spy
—
1,307
3DMark Time Spy Extreme
—
409
▲ Specs Compare
Data sourced from official specifications and benchmark tests.