AMD Radeon RX 570 vs AMD Radeon HD 7870 XT
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 570 and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 570 's Advantages
Released 4 years and 5 months late
Boost Clock has increased by 28% (1244MHz vs 975MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (224.0GB/s vs 192.0GB/s)
512 additional rendering cores
Lower TDP (150W vs 185W)
Score
Benchmark
FP32 (float)
Radeon RX 570
+70%
5.095 TFLOPS
Radeon HD 7870 XT
2.995 TFLOPS
3DMark Time Spy
Radeon RX 570
+117%
3851
Radeon HD 7870 XT
1773
3DMark Time Spy Extreme
Radeon RX 570
+402%
1770
Radeon HD 7870 XT
352
Graphics Card
Apr 2017
Release Date
Nov 2012
Polaris
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1168 MHz
Base Clock
925 MHz
1244 MHz
Boost Clock
975 MHz
1750 MHz
Memory Clock
1500 MHz
Memory
4GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
224.0GB/s
Bandwidth
192.0GB/s
Render Config
32
Compute Units
24
-
-
-
2048
Shading Units
1536
128
TMUs
96
32
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
512 KB
-
-
-
Theoretical Performance
39.81 GPixel/s
Pixel Rate
31.20 GPixel/s
159.2 GTexel/s
Texture Rate
93.60 GTexel/s
5.095 TFLOPS
FP16 (half)
-
5.095 TFLOPS
FP32 (float)
2.995 TFLOPS
318.5 GFLOPS
FP64 (double)
748.8 GFLOPS
Board Design
150W
TDP
185W
450 W
Suggested PSU
450 W
1x DVI
1x HDMI 2.0b
3x DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
1x 6-pin
Power Connectors
2x 6-pin
Graphics Processor
Polaris 20
GPU Name
Tahiti
Polaris 20 XL
(215-0910052)
GPU Variant
Tahiti LE
(215-0821122)
GCN 4.0
Architecture
GCN 1.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
5.7 billion
Transistors
4.313 billion
232 mm²
Die Size
352 mm²
Graphics Features
12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1
OpenCL
1.2
1.2
Vulkan
1.2
-
-
-
6.4
Shader Model
5.1
