AMD Radeon R9 390 X2 vs ATI Radeon HD 5870 Mac Edition
We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 1024MB VRAM Radeon HD 5870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 390 X2 's Advantages
Released 5 years and 3 months late
More VRAM (8GB vs 1024GB)
Larger VRAM bandwidth (345.6GB/s vs 153.0GB/s)
960 additional rendering cores
ATI Radeon HD 5870 Mac Edition 's Advantages
Lower TDP (228W vs 580W)
Score
Benchmark
FP32 (float)
Radeon R9 390 X2
+88%
5.12 TFLOPS
Radeon HD 5870 Mac Edition
2.72 TFLOPS
Graphics Card
Sep 2015
Release Date
Jun 2010
Pirate Islands
Generation
Evergreen
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1350 MHz
Memory Clock
1195 MHz
Memory
8GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
512bit
Memory Bus
256bit
345.6GB/s
Bandwidth
153.0GB/s
Render Config
40
Compute Units
20
-
-
-
2560
Shading Units
1600
160
TMUs
80
64
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
1024 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
64.00 GPixel/s
Pixel Rate
27.20 GPixel/s
160.0 GTexel/s
Texture Rate
68.00 GTexel/s
-
-
-
5.120 TFLOPS
FP32 (float)
2.720 TFLOPS
640.0 GFLOPS
FP64 (double)
544.0 GFLOPS
Board Design
580W
TDP
228W
950 W
Suggested PSU
550 W
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
Outputs
1x DVI
2x mini-DisplayPort 1.1
4x 8-pin
Power Connectors
2x 6-pin
Graphics Processor
Grenada
GPU Name
Cypress
Grenada PRO
(215-0880030)
GPU Variant
Cypress XT
(215-0735033)
GCN 2.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
6.2 billion
Transistors
2.154 billion
438 mm²
Die Size
334 mm²
Graphics Features
12 (12_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.0
OpenCL
1.2
1.2
Vulkan
N/A
-
-
-
6.3
Shader Model
5.0
