Home GPU Comparison AMD Radeon RX 550X 640SP vs ATI Radeon HD 4870

AMD Radeon RX 550X 640SP vs ATI Radeon HD 4870

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550X 640SP and 512MB VRAM Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X 640SP 's Advantages
Released 9 years and 10 months late
Boost Clock1071MHz
More VRAM (2GB vs 512GB)
Lower TDP (60W vs 150W)
ATI Radeon HD 4870 's Advantages
Larger VRAM bandwidth (115.2GB/s vs 96.00GB/s)
160 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon RX 550X 640SP +14%
1.371 TFLOPS
Radeon HD 4870
1.2 TFLOPS
VS

Graphics Card

Apr 2018
Release Date
Jun 2008
Polaris
Generation
Radeon R700
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
900 MHz

Memory

2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
96.00GB/s
Bandwidth
115.2GB/s

Render Config

10
Compute Units
10
-
-
-
640
Shading Units
800
40
TMUs
40
16
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

17.14 GPixel/s
Pixel Rate
12.00 GPixel/s
42.84 GTexel/s
Texture Rate
30.00 GTexel/s
1371 GFLOPS
FP16 (half)
-
1371 GFLOPS
FP32 (float)
1200 GFLOPS
85.68 GFLOPS
FP64 (double)
240.0 GFLOPS

Board Design

60W
TDP
150W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
2x DVI 1x S-Video
None
Power Connectors
2x 6-pin

Graphics Processor

Baffin
GPU Name
RV770
Baffin LE
GPU Variant
RV770 XT (215-0669049)
GCN 4.0
Architecture
TeraScale
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
55 nm
3 billion
Transistors
0.956 billion
123 mm²
Die Size
256 mm²

Graphics Features

12 (12_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
2.1
OpenCL
1.1
1.2
Vulkan
N/A
-
-
-
6.4
Shader Model
4.1

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