Home GPU Comparison AMD Radeon RX 550 640SP vs AMD Radeon HD 6870 1600SP Edition

AMD Radeon RX 550 640SP vs AMD Radeon HD 6870 1600SP Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550 640SP and 1024MB VRAM Radeon HD 6870 1600SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 640SP 's Advantages
Released 4 years and 9 months late
Boost Clock1071MHz
More VRAM (2GB vs 1024GB)
Lower TDP (60W vs 175W)
AMD Radeon HD 6870 1600SP Edition 's Advantages
Larger VRAM bandwidth (134.4GB/s vs 96.00GB/s)
960 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon RX 550 640SP
1.371 TFLOPS
Radeon HD 6870 1600SP Edition +98%
2.72 TFLOPS
VS

Graphics Card

Oct 2017
Release Date
Jan 2013
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

10
Compute Units
20
-
-
-
640
Shading Units
1600
40
TMUs
80
16
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
1024 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

17.14 GPixel/s
Pixel Rate
27.20 GPixel/s
42.84 GTexel/s
Texture Rate
68.00 GTexel/s
1371 GFLOPS
FP16 (half)
-
1371 GFLOPS
FP32 (float)
2.720 TFLOPS
85.68 GFLOPS
FP64 (double)
544.0 GFLOPS

Board Design

60W
TDP
175W
250 W
Suggested PSU
450 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
2x 6-pin

Graphics Processor

Baffin
GPU Name
Cypress
Baffin LE
GPU Variant
Cypress XT (215-0735033)
GCN 4.0
Architecture
TeraScale 2
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
3 billion
Transistors
2.154 billion
123 mm²
Die Size
334 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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