AMD Radeon RX 6650 XT vs AMD Radeon HD 7870 XT
GPU Specs Compare
Graphics Card
Release Date
May 2022
Nov 2012
Generation
Navi II
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
2055 MHz
925 MHz
Boost Clock
2635 MHz
975 MHz
Memory Clock
2190 MHz
1500 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
256bit
Bandwidth
280.3GB/s
192.0GB/s
Render Config
Compute Units
32
24
Shading Units
2048
1536
TMUs
128
96
ROPs
64
32
RT Cores
32
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
512 KB
L3 Cache
32 MB
-
Theoretical Performance
Pixel Rate
168.6 GPixel/s
31.20 GPixel/s
Texture Rate
337.3 GTexel/s
93.60 GTexel/s
FP16 (half)
21.59 TFLOPS
-
FP32 (float)
10.79 TFLOPS
2.995 TFLOPS
FP64 (double)
674.6 GFLOPS
748.8 GFLOPS
Graphics Processor
GPU Name
Navi 23
Tahiti
GPU Variant
Navi 23 KXT(215-130000136)
Tahiti LE(215-0821122)
Architecture
RDNA 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
11.06 billion
4.313 billion
Die Size
237 mm²
352 mm²
Board Design
TDP
176W
185W
Suggested PSU
450 W
450 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
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