Home GPU Comparison AMD Radeon HD 6390 vs AMD Radeon HD 8990 OEM

AMD Radeon HD 6390 vs AMD Radeon HD 8990 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 3GB VRAM Radeon HD 8990 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 375W)
AMD Radeon HD 8990 OEM 's Advantages
Released 1 years and 9 months late
Boost Clock1000MHz
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (288.0GB/s vs 16.00GB/s)
1728 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 6390
0.352 TFLOPS
Radeon HD 8990 OEM +1063%
4.096 TFLOPS
VS

Graphics Card

Jul 2011
Release Date
Apr 2013
Northern Islands
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
950 MHz
-
Boost Clock
1000 MHz
500 MHz
Memory Clock
1500 MHz

Memory

1024MB
Memory Size
3GB
DDR2
Memory Type
GDDR5
128bit
Memory Bus
384bit
16.00GB/s
Bandwidth
288.0GB/s

Render Config

4
Compute Units
32
-
-
-
320
Shading Units
2048
16
TMUs
128
8
ROPs
32
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
768 KB
-
-
-

Theoretical Performance

4.400 GPixel/s
Pixel Rate
32.00 GPixel/s
8.800 GTexel/s
Texture Rate
128.0 GTexel/s
-
-
-
352.0 GFLOPS
FP32 (float)
4.096 TFLOPS
-
FP64 (double)
1024 GFLOPS

Board Design

39W
TDP
375W
200 W
Suggested PSU
750 W
1x DVI 1x HDMI 1.3a 1x VGA
Outputs
1x DVI 4x mini-DisplayPort 1.2
None
Power Connectors
2x 8-pin

Graphics Processor

Redwood
GPU Name
Malta
Redwood LE
GPU Variant
Malta XT (215-0849026)
TeraScale 2
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.627 billion
Transistors
4.313 billion
104 mm²
Die Size
365 mm²

Graphics Features

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

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