AMD Radeon HD 7870 XT vs AMD Radeon RX 470
GPU Specs Compare
Graphics Card
Release Date
Nov 2012
Aug 2016
Generation
Southern Islands
Arctic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
925 MHz
926 MHz
Boost Clock
975 MHz
1206 MHz
Memory Clock
1500 MHz
1650 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
192.0GB/s
211.2GB/s
Render Config
Compute Units
24
32
Shading Units
1536
2048
TMUs
96
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
31.20 GPixel/s
38.59 GPixel/s
Texture Rate
93.60 GTexel/s
154.4 GTexel/s
FP32 (float)
2.995 TFLOPS
4.940 TFLOPS
FP64 (double)
748.8 GFLOPS
308.7 GFLOPS
FP16 (half)
-
4.940 TFLOPS
Graphics Processor
GPU Name
Tahiti
Ellesmere
GPU Variant
Tahiti LE(215-0821122)
Polaris 10 PRO(215-0876204)
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
4.313 billion
5.7 billion
Die Size
352 mm²
232 mm²
Board Design
TDP
185W
120W
Suggested PSU
450 W
300 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
2x 6-pin
1x 6-pin
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.2
Shader Model
5.1
6.4