AMD Radeon HD 7870 XT vs AMD Radeon 680M
GPU Specs Compare
Graphics Card
Release Date
Nov 2012
Jan 2022
Generation
Southern Islands
Navi II IGP
Type
Desktop
Integrated
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
925 MHz
2000 MHz
Boost Clock
975 MHz
2200 MHz
Memory Clock
1500 MHz
System Shared
Memory
Memory Size
2GB
System Shared
Memory Type
GDDR5
System Shared
Memory Bus
256bit
System Shared
Bandwidth
192.0GB/s
System Dependent
Render Config
Compute Units
24
12
Shading Units
1536
768
TMUs
96
48
ROPs
32
32
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
2 MB
RT Cores
-
12
Theoretical Performance
Pixel Rate
31.20 GPixel/s
70.40 GPixel/s
Texture Rate
93.60 GTexel/s
105.6 GTexel/s
FP32 (float)
2.995 TFLOPS
3.379 TFLOPS
FP64 (double)
748.8 GFLOPS
211.2 GFLOPS
FP16 (half)
-
6.758 TFLOPS
Graphics Processor
GPU Name
Tahiti
Rembrandt
GPU Variant
Tahiti LE(215-0821122)
-
Architecture
GCN 1.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
6 nm
Transistors
4.313 billion
13.1 billion
Die Size
352 mm²
208 mm²
Board Design
TDP
185W
50W
Suggested PSU
450 W
-
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.2
1.3
Shader Model
5.1
6.7