Radeon R9 295X2 vs Radeon RX 580X
We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 and 8GB VRAM Radeon RX 580X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R9 295X2 's Advantages
Larger VRAM bandwidth (320.0GB/s vs 256.0GB/s)
512 additional rendering cores
Radeon RX 580X 's Advantages
Released 4 years late
Boost Clock1340MHz
More VRAM (8GB vs 4GB)
Lower TDP (185W vs 500W)
Score
Benchmark
FP32 (float)
Radeon R9 295X2
5733
Radeon RX 580X
+7%
6175
Graphics Card
Apr 2014
Release Date
Apr 2018
Volcanic Islands
Generation
Polaris
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
1257 MHz
-
Boost Clock
1340 MHz
1250 MHz
Memory Clock
2000 MHz
Memory
4GB
Memory Size
8GB
GDDR5
Memory Type
GDDR5
512bit
Memory Bus
256bit
320.0GB/s
Bandwidth
256.0GB/s
Render Config
44
Compute Units
36
2816
Shading Units
2304
176
TMUs
144
64
ROPs
32
16 KB (per CU)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
2 MB
Theoretical Performance
65.15 GPixel/s
Pixel Rate
42.88 GPixel/s
179.2 GTexel/s
Texture Rate
193.0 GTexel/s
-
FP16 (half)
6.175 TFLOPS
5.733 TFLOPS
FP32 (float)
6.175 TFLOPS
716.7 GFLOPS
FP64 (double)
385.9 GFLOPS
Board Design
500W
TDP
185W
900 W
Suggested PSU
450 W
1x DVI
4x mini-DisplayPort 1.2
Outputs
1x HDMI 2.0b
3x DisplayPort 1.4a
2x 8-pin
Power Connectors
1x 8-pin
Graphics Processor
Vesuvius
GPU Name
Polaris 20
Vesuvius XT
(215-0852022)
GPU Variant
Polaris 20 XTX
(215-0910038)
GCN 2.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
6.2 billion
Transistors
5.7 billion
438 mm²
Die Size
232 mm²
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.0
OpenCL
2.1
1.2
Vulkan
1.2
6.3
Shader Model
6.4
