Home GPU Comparison AMD Radeon HD 6390 vs AMD Radeon R7 450 OEM

AMD Radeon HD 6390 vs AMD Radeon R7 450 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 2GB VRAM Radeon R7 450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages
Lower TDP (39W vs 65W)
AMD Radeon R7 450 OEM 's Advantages
Released 4 years and 11 months late
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (72.00GB/s vs 16.00GB/s)
192 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 6390
0.352 TFLOPS
Radeon R7 450 OEM +169%
0.947 TFLOPS
VS

Graphics Card

Jul 2011
Release Date
Jun 2016
Northern Islands
Generation
Arctic Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
500 MHz
Memory Clock
1125 MHz

Memory

1024MB
Memory Size
2GB
DDR2
Memory Type
GDDR5
128bit
Memory Bus
128bit
16.00GB/s
Bandwidth
72.00GB/s

Render Config

4
Compute Units
8
-
-
-
320
Shading Units
512
16
TMUs
32
8
ROPs
16
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

4.400 GPixel/s
Pixel Rate
14.80 GPixel/s
8.800 GTexel/s
Texture Rate
29.60 GTexel/s
-
-
-
352.0 GFLOPS
FP32 (float)
947.2 GFLOPS
-
FP64 (double)
59.20 GFLOPS

Board Design

39W
TDP
65W
200 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.3a 1x VGA
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
None
Power Connectors
None

Graphics Processor

Redwood
GPU Name
Cape Verde
Redwood LE
GPU Variant
Cape Verde PRO2
TeraScale 2
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.627 billion
Transistors
1.5 billion
104 mm²
Die Size
123 mm²

Graphics Features

11.2 (11_0)
DirectX
12 (11_1)
4.4
OpenGL
4.6
1.2
OpenCL
2.1 (1.2)
N/A
Vulkan
1.2.170
-
-
-
5.0
Shader Model
6.5 (5.1)

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