AMD Radeon Sky 500 vs AMD Radeon RX 6900 XT
GPU · Specs Compare
Graphics Card
Release Date
Mar 2013
Oct 2020
Generation
Radeon Sky
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1200 MHz
2000 MHz
Base Clock
—
1825 MHz
Boost Clock
—
2250 MHz
Memory
Memory Size
4GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
153.6GB/s
512.0GB/s
Render Config
Compute Units
20
80
Shading Units
1280
5120
TMUs
80
320
ROPs
32
128
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
RT Cores
—
80
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
30.40 GPixel/s
288.0 GPixel/s
Texture Rate
76.00 GTexel/s
720.0 GTexel/s
FP32 (float)
2.432 TFLOPS
23.04 TFLOPS
FP64 (double)
152.0 GFLOPS
1440.0 GFLOPS
FP16 (half)
—
46.08 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Navi 21
GPU Variant
Pitcairn XT GL(215-0828073)
Navi 21 XTX(215-121000167)
Architecture
GCN 1.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
2.8 billion
26.8 billion
Die Size
212 mm²
520 mm²
Board Design
TDP
150W
300W
Suggested PSU
450 W
700 W
Outputs
1x DisplayPort 1.2
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
1x 6-pin
2x 8-pin
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.4
Shader Model
5.1
6.8
Benchmark
3DMark Time Spy
—
20,764
▲ Specs Compare
Data sourced from official specifications and benchmark tests.