AMD Radeon RX 6800 vs AMD Radeon RX 580 OEM
GPU · Specs Compare
Graphics Card
Release Date
Oct 2020
Jun 2016
Generation
Navi II
Polaris
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1700 MHz
1120 MHz
Boost Clock
2105 MHz
1266 MHz
Memory Clock
2000 MHz
2000 MHz
Memory
Memory Size
16GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
512.0GB/s
256.0GB/s
Render Config
Compute Units
60
36
Shading Units
3840
2304
TMUs
240
144
ROPs
96
32
RT Cores
60
—
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
2 MB
L3 Cache
128 MB
—
Theoretical Performance
Pixel Rate
202.1 GPixel/s
40.51 GPixel/s
Texture Rate
505.2 GTexel/s
182.3 GTexel/s
FP16 (half)
32.33 TFLOPS
5.834 TFLOPS
FP32 (float)
16.17 TFLOPS
5.834 TFLOPS
FP64 (double)
1010 GFLOPS
364.6 GFLOPS
Graphics Processor
GPU Name
Navi 21
Ellesmere
GPU Variant
Navi 21 XL(215-121000187)
Polaris 10 XT(215-0876184)
Architecture
RDNA 2.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
7 nm
14 nm
Transistors
26.8 billion
5.7 billion
Die Size
520 mm²
232 mm²
Board Design
TDP
250W
150W
Suggested PSU
600 W
450 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
2x 8-pin
1x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.2
Shader Model
6.5
6.4
Benchmark
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.