Home GPU Comparison AMD Radeon RX 550X 640SP vs AMD Radeon RX 6500 XT

AMD Radeon RX 550X 640SP vs AMD Radeon RX 6500 XT

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550X 640SP and 4GB VRAM Radeon RX 6500 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X 640SP 's Advantages
Lower TDP (60W vs 107W)
AMD Radeon RX 6500 XT 's Advantages
Released 3 years and 9 months late
Boost Clock has increased by 163% (2815MHz vs 1071MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (143.9GB/s vs 96.00GB/s)
384 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon RX 550X 640SP
1.371 TFLOPS
Radeon RX 6500 XT +320%
5.765 TFLOPS
VS

Graphics Card

Apr 2018
Release Date
Jan 2022
Polaris
Generation
Navi II
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 4.0 x4

Clock Speeds

1019 MHz
Base Clock
2310 MHz
1071 MHz
Boost Clock
2815 MHz
1500 MHz
Memory Clock
2248 MHz

Memory

2GB
Memory Size
4GB
GDDR5
Memory Type
GDDR6
128bit
Memory Bus
64bit
96.00GB/s
Bandwidth
143.9GB/s

Render Config

10
Compute Units
16
-
-
-
640
Shading Units
1024
40
TMUs
64
16
ROPs
32
-
-
-
-
RT Cores
16
16 KB (per CU)
L1 Cache
128 KB per Array
1024 KB
L2 Cache
1024 KB
-
L3 Cache
16 MB

Theoretical Performance

17.14 GPixel/s
Pixel Rate
90.08 GPixel/s
42.84 GTexel/s
Texture Rate
180.2 GTexel/s
1371 GFLOPS
FP16 (half)
11.53 TFLOPS
1371 GFLOPS
FP32 (float)
5.765 TFLOPS
85.68 GFLOPS
FP64 (double)
360.3 GFLOPS

Board Design

60W
TDP
107W
250 W
Suggested PSU
300 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
1x HDMI 2.1 1x DisplayPort 1.4a
None
Power Connectors
1x 6-pin

Graphics Processor

Baffin
GPU Name
Navi 24
Baffin LE
GPU Variant
Navi 24 XT (215-135000006)
GCN 4.0
Architecture
RDNA 2.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
6 nm
3 billion
Transistors
5.4 billion
123 mm²
Die Size
107 mm²

Graphics Features

12 (12_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.1
OpenCL
2.2
1.2
Vulkan
1.3
-
-
-
6.4
Shader Model
6.6

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