Home GPU Comparison AMD Radeon 550X vs AMD Radeon HD 7870 XT

AMD Radeon 550X vs AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 2GB VRAM Radeon 550X and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 's Advantages
Released 6 years and 4 months late
Boost Clock has increased by 25% (1218MHz vs 975MHz)
Lower TDP (50W vs 185W)
AMD Radeon HD 7870 XT 's Advantages
Larger VRAM bandwidth (192.0GB/s vs 112.0GB/s)
1024 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon 550X
1.247 TFLOPS
Radeon HD 7870 XT +140%
2.995 TFLOPS
VS

Graphics Card

Mar 2019
Release Date
Nov 2012
Polaris
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16

Clock Speeds

1082 MHz
Base Clock
925 MHz
1218 MHz
Boost Clock
975 MHz
1750 MHz
Memory Clock
1500 MHz

Memory

2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
112.0GB/s
Bandwidth
192.0GB/s

Render Config

8
Compute Units
24
-
-
-
512
Shading Units
1536
32
TMUs
96
16
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

19.49 GPixel/s
Pixel Rate
31.20 GPixel/s
38.98 GTexel/s
Texture Rate
93.60 GTexel/s
1247 GFLOPS
FP16 (half)
-
1247 GFLOPS
FP32 (float)
2.995 TFLOPS
77.95 GFLOPS
FP64 (double)
748.8 GFLOPS

Board Design

50W
TDP
185W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
None
Power Connectors
2x 6-pin

Graphics Processor

Lexa
GPU Name
Tahiti
Lexa PRO (215-0904018)
GPU Variant
Tahiti LE (215-0821122)
GCN 4.0
Architecture
GCN 1.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
2.2 billion
Transistors
4.313 billion
103 mm²
Die Size
352 mm²

Graphics Features

12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1
OpenCL
1.2
1.2
Vulkan
1.2
-
-
-
6.4
Shader Model
5.1

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