Home GPU Comparison AMD Radeon RX 550 512SP vs AMD Radeon HD 6870 X2

AMD Radeon RX 550 512SP vs AMD Radeon HD 6870 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550 512SP and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 512SP 's Advantages
Released 6 years and 3 months late
Boost Clock1071MHz
More VRAM (2GB vs 1024GB)
Lower TDP (50W vs 300W)
AMD Radeon HD 6870 X2 's Advantages
Larger VRAM bandwidth (134.4GB/s vs 96.00GB/s)
608 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon RX 550 512SP
1.097 TFLOPS
Radeon HD 6870 X2 +83%
2.016 TFLOPS
VS

Graphics Card

Oct 2017
Release Date
Jul 2011
Polaris
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 2.0 x16

Clock Speeds

1019 MHz
Base Clock
-
1071 MHz
Boost Clock
-
1500 MHz
Memory Clock
1050 MHz

Memory

2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
96.00GB/s
Bandwidth
134.4GB/s

Render Config

8
Compute Units
14
-
-
-
512
Shading Units
1120
32
TMUs
56
16
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

17.14 GPixel/s
Pixel Rate
28.80 GPixel/s
34.27 GTexel/s
Texture Rate
50.40 GTexel/s
1097 GFLOPS
FP16 (half)
-
1097 GFLOPS
FP32 (float)
2.016 TFLOPS
68.54 GFLOPS
FP64 (double)
-

Board Design

50W
TDP
300W
250 W
Suggested PSU
700 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
None
Power Connectors
-

Graphics Processor

Baffin
GPU Name
Barts
Baffin LE
GPU Variant
Barts XT (215-0798000)
GCN 4.0
Architecture
TeraScale 2
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
3 billion
Transistors
1.7 billion
123 mm²
Die Size
255 mm²

Graphics Features

12 (12_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.2
Vulkan
N/A
-
-
-
6.4
Shader Model
5.0

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