AMD Radeon R9 270 vs AMD Radeon RX 6800 XT
GPU Specs Compare
Graphics Card
Release Date
Nov 2013
Oct 2020
Generation
Volcanic Islands
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
900 MHz
1825 MHz
Boost Clock
925 MHz
2250 MHz
Memory Clock
1400 MHz
2000 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
179.2GB/s
512.0GB/s
Render Config
Compute Units
20
72
Shading Units
1280
4608
TMUs
80
288
ROPs
32
128
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
RT Cores
-
72
L3 Cache
-
128 MB
Theoretical Performance
Pixel Rate
29.60 GPixel/s
288.0 GPixel/s
Texture Rate
74.00 GTexel/s
648.0 GTexel/s
FP32 (float)
2.368 TFLOPS
20.74 TFLOPS
FP64 (double)
148.0 GFLOPS
1296 GFLOPS
FP16 (half)
-
41.47 TFLOPS
Graphics Processor
GPU Name
Curacao
Navi 21
GPU Variant
Curacao PRO(215-0848000)
Navi 21 XT(215-121000177)
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
2x DVI1x HDMI 1.4a1x 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
1.3
Shader Model
5.1
6.5
📊 Benchmark
3DMark Time Spy
1,603
19,329