AMD Radeon RX 6400 vs AMD Radeon HD 6870 1600SP Edition
GPU Specs Compare
Graphics Card
Release Date
Jan 2022
Jan 2013
Generation
Navi II
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x4
PCIe 2.0 x16
Clock Speeds
Base Clock
1923 MHz
-
Boost Clock
2321 MHz
-
Memory Clock
2000 MHz
1050 MHz
Memory
Memory Size
4GB
1024MB
Memory Type
GDDR6
GDDR5
Memory Bus
64bit
256bit
Bandwidth
128.0GB/s
134.4GB/s
Render Config
Compute Units
12
20
Shading Units
768
1600
TMUs
48
80
ROPs
32
32
RT Cores
12
-
L1 Cache
128 KB per Array
8 KB (per CU)
L2 Cache
1024 KB
512 KB
L3 Cache
16 MB
-
Theoretical Performance
Pixel Rate
74.27 GPixel/s
27.20 GPixel/s
Texture Rate
111.4 GTexel/s
68.00 GTexel/s
FP16 (half)
7.130 TFLOPS
-
FP32 (float)
3.565 TFLOPS
2.720 TFLOPS
FP64 (double)
222.8 GFLOPS
544.0 GFLOPS
Graphics Processor
GPU Name
Navi 24
Cypress
GPU Variant
Navi 24 XL(215-135000046)
Cypress XT(215-0735033)
Architecture
RDNA 2.0
TeraScale 2
Foundry
TSMC
TSMC
Process Size
6 nm
40 nm
Transistors
5.4 billion
2.154 billion
Die Size
107 mm²
334 mm²
Board Design
TDP
53W
175W
Suggested PSU
250 W
450 W
Outputs
1x HDMI 2.11x DisplayPort 1.4a
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Power Connectors
None
2x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.2
1.2
Vulkan
1.3
N/A
Shader Model
6.7
5.0