NVIDIA Tesla K20c vs AMD Radeon RX 6800
GPU · Specs Compare
Graphics Card
Release Date
Nov 2012
Oct 2020
Generation
Tesla
Navi II
Type
Professional
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1300 MHz
2000 MHz
Base Clock
—
1700 MHz
Boost Clock
—
2105 MHz
Memory
Memory Size
5GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
320bit
256bit
Bandwidth
208.0GB/s
512.0GB/s
Render Config
Shading Units
2496
3840
TMUs
208
240
ROPs
40
96
L1 Cache
16 KB (per SMX)
128 KB per Array
L2 Cache
1280 KB
4 MB
Compute Units
—
60
RT Cores
—
60
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
36.71 GPixel/s
202.1 GPixel/s
Texture Rate
146.8 GTexel/s
505.2 GTexel/s
FP32 (float)
3.524 TFLOPS
16.17 TFLOPS
FP64 (double)
1175 GFLOPS
1010 GFLOPS
FP16 (half)
—
32.33 TFLOPS
Graphics Processor
GPU Name
GK110
Navi 21
GPU Variant
GK110-885-KA-A1
Navi 21 XL(215-121000187)
Architecture
Kepler
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
7.08 billion
26.8 billion
Die Size
561 mm²
520 mm²
Board Design
TDP
225W
250W
Suggested PSU
550 W
600 W
Outputs
No outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
1x 6-pin + 1x 8-pin
2x 8-pin
Graphics Features
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
2.1
Vulkan
1.1
1.3
CUDA
3.5
—
Shader Model
5.1
6.5
Benchmark
OctaneBench
55
—
3DMark Time Spy
—
16,182
3DMark Time Spy Extreme
—
7,771
3DMark Speed Way
—
3,062
▲ Specs Compare
Data sourced from official specifications and benchmark tests.