AMD Radeon HD 7870 XT vs AMD Radeon RX 580 OEM
GPU · Specs Compare
Graphics Card
Release Date
Nov 2012
Jun 2016
Generation
Southern Islands
Polaris
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
925 MHz
1120 MHz
Boost Clock
975 MHz
1266 MHz
Memory Clock
1500 MHz
2000 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
192.0GB/s
256.0GB/s
Render Config
Compute Units
24
36
Shading Units
1536
2304
TMUs
96
144
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
40.51 GPixel/s
Texture Rate
93.60 GTexel/s
182.3 GTexel/s
FP32 (float)
2.995 TFLOPS
5.834 TFLOPS
FP64 (double)
748.8 GFLOPS
364.6 GFLOPS
FP16 (half)
—
5.834 TFLOPS
Graphics Processor
GPU Name
Tahiti
Ellesmere
GPU Variant
Tahiti LE(215-0821122)
Polaris 10 XT(215-0876184)
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
150W
Suggested PSU
450 W
450 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
▲ Specs Compare
Data sourced from official specifications and benchmark tests.