Home GPU Comparison AMD Radeon RX 455 OEM vs AMD Radeon R7 265X OEM

AMD Radeon RX 455 OEM vs AMD Radeon R7 265X OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 455 OEM and 2GB VRAM Radeon R7 265X OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 455 OEM 's Advantages
Released 1 years and 10 months late
Lower TDP (100W vs 150W)
AMD Radeon R7 265X OEM 's Advantages
Boost Clock925MHz
Larger VRAM bandwidth (179.2GB/s vs 104.0GB/s)
512 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon RX 455 OEM
1.613 TFLOPS
Radeon R7 265X OEM +46%
2.368 TFLOPS
VS

Graphics Card

Jun 2016
Release Date
Aug 2014
Arctic Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
900 MHz
-
Boost Clock
925 MHz
1625 MHz
Memory Clock
1400 MHz

Memory

2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
104.0GB/s
Bandwidth
179.2GB/s

Render Config

12
Compute Units
20
-
-
-
768
Shading Units
1280
48
TMUs
80
16
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

16.80 GPixel/s
Pixel Rate
29.60 GPixel/s
50.40 GTexel/s
Texture Rate
74.00 GTexel/s
-
-
-
1.613 TFLOPS
FP32 (float)
2.368 TFLOPS
100.8 GFLOPS
FP64 (double)
148.0 GFLOPS

Board Design

100W
TDP
150W
300 W
Suggested PSU
450 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin
Power Connectors
1x 6-pin

Graphics Processor

Tobago
GPU Name
Curacao
Tobago PRO (215-0875010)
GPU Variant
Curacao PRO (215-0848000)
GCN 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.08 billion
Transistors
2.8 billion
160 mm²
Die Size
212 mm²

Graphics Features

12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.0
OpenCL
1.2
1.2
Vulkan
1.2
-
-
-
6.3
Shader Model
5.1

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