Home GPU Comparison AMD Radeon RX 455 OEM vs AMD Radeon R7 250X

AMD Radeon RX 455 OEM vs AMD Radeon R7 250X

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 455 OEM and 1024MB VRAM Radeon R7 250X 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 2 years and 4 months late
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (104.0GB/s vs 72.00GB/s)
128 additional rendering cores
AMD Radeon R7 250X 's Advantages
Lower TDP (80W vs 100W)

Score

Benchmark

FP32 (float)
Radeon RX 455 OEM +32%
1.613 TFLOPS
Radeon R7 250X
1.216 TFLOPS
VS

Graphics Card

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

Clock Speeds

-
-
-
-
-
-
1625 MHz
Memory Clock
1125 MHz

Memory

2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
128bit
104.0GB/s
Bandwidth
72.00GB/s

Render Config

12
Compute Units
10
-
-
-
768
Shading Units
640
48
TMUs
40
16
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

16.80 GPixel/s
Pixel Rate
15.20 GPixel/s
50.40 GTexel/s
Texture Rate
38.00 GTexel/s
-
-
-
1.613 TFLOPS
FP32 (float)
1216 GFLOPS
100.8 GFLOPS
FP64 (double)
76.00 GFLOPS

Board Design

100W
TDP
80W
300 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
1x 6-pin
Power Connectors
1x 6-pin

Graphics Processor

Tobago
GPU Name
Cape Verde
Tobago PRO (215-0875010)
GPU Variant
Cape Verde XT
GCN 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.08 billion
Transistors
1.5 billion
160 mm²
Die Size
123 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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