AMD Radeon RX 6700 vs AMD Radeon HD 7870 XT
GPU Specs Compare
Graphics Card
Release Date
Jun 2021
Nov 2012
Generation
Navi II
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1941 MHz
925 MHz
Boost Clock
2450 MHz
975 MHz
Memory Clock
2000 MHz
1500 MHz
Memory
Memory Size
10GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
160bit
256bit
Bandwidth
320.0GB/s
192.0GB/s
Render Config
Compute Units
36
24
Shading Units
2304
1536
TMUs
144
96
ROPs
64
32
RT Cores
36
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
3 MB
512 KB
L3 Cache
80 MB
-
Theoretical Performance
Pixel Rate
156.8 GPixel/s
31.20 GPixel/s
Texture Rate
352.8 GTexel/s
93.60 GTexel/s
FP16 (half)
22.58 TFLOPS
-
FP32 (float)
11.29 TFLOPS
2.995 TFLOPS
FP64 (double)
705.6 GFLOPS
748.8 GFLOPS
Graphics Processor
GPU Name
Navi 22
Tahiti
GPU Variant
Navi 22 XTL
Tahiti LE(215-0821122)
Architecture
RDNA 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
17.2 billion
4.313 billion
Die Size
335 mm²
352 mm²
Board Design
TDP
175W
185W
Suggested PSU
450 W
450 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
1x 8-pin
2x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.3
1.2
Shader Model
6.5
5.1