AMD Radeon RX 6700 vs AMD Radeon R9 390
GPU Specs Compare
Graphics Card
Release Date
Jun 2021
Jun 2015
Generation
Navi II
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1941 MHz
-
Boost Clock
2450 MHz
-
Memory Clock
2000 MHz
1500 MHz
Memory
Memory Size
10GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
160bit
512bit
Bandwidth
320.0GB/s
384.0GB/s
Render Config
Compute Units
36
40
Shading Units
2304
2560
TMUs
144
160
ROPs
64
64
RT Cores
36
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
3 MB
1024 KB
L3 Cache
80 MB
-
Theoretical Performance
Pixel Rate
156.8 GPixel/s
64.00 GPixel/s
Texture Rate
352.8 GTexel/s
160.0 GTexel/s
FP16 (half)
22.58 TFLOPS
-
FP32 (float)
11.29 TFLOPS
5.120 TFLOPS
FP64 (double)
705.6 GFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
Navi 22
Grenada
GPU Variant
Navi 22 XTL
Grenada PRO(215-0880030)
Architecture
RDNA 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
17.2 billion
6.2 billion
Die Size
335 mm²
438 mm²
Board Design
TDP
175W
275W
Suggested PSU
450 W
600 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 8-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.3
1.2
Shader Model
6.5
6.3
📊 Benchmark
3DMark Time Spy
-
3,964
3DMark Time Spy Extreme
-
1,931