Home GPU Comparison AMD Radeon RX 6600 LE vs ATI Radeon HD 3870

AMD Radeon RX 6600 LE vs ATI Radeon HD 3870

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 LE and 512MB VRAM Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 LE 's Advantages
Released 16 years and 1 months late
Boost Clock2495MHz
More VRAM (8GB vs 512GB)
Larger VRAM bandwidth (224.0GB/s vs 72.06GB/s)
1472 additional rendering cores
ATI Radeon HD 3870 's Advantages
Lower TDP (106W vs 132W)

Score

Benchmark

FP32 (float)
Radeon RX 6600 LE +1699%
8.942 TFLOPS
Radeon HD 3870
0.497 TFLOPS
VS

Graphics Card

Dec 2023
Release Date
Nov 2007
Navi II
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 2.0 x16

Clock Speeds

1626 MHz
Base Clock
-
2495 MHz
Boost Clock
-
1750 MHz
Memory Clock
1126 MHz

Memory

8GB
Memory Size
512MB
GDDR6
Memory Type
GDDR4
128bit
Memory Bus
256bit
224.0GB/s
Bandwidth
72.06GB/s

Render Config

28
Compute Units
4
-
-
-
1792
Shading Units
320
112
TMUs
16
64
ROPs
16
-
-
-
28
RT Cores
-
128 KB per Array
L1 Cache
-
2 MB
L2 Cache
256 KB
32 MB
L3 Cache
-

Theoretical Performance

159.7 GPixel/s
Pixel Rate
12.43 GPixel/s
279.4 GTexel/s
Texture Rate
12.43 GTexel/s
17.88 TFLOPS
FP16 (half)
-
8.942 TFLOPS
FP32 (float)
497.3 GFLOPS
558.9 GFLOPS
FP64 (double)
99.46 GFLOPS

Board Design

132W
TDP
106W
300 W
Suggested PSU
300 W
1x HDMI 2.1 3x DisplayPort 1.4a
Outputs
2x DVI 1x S-Video
1x 8-pin
Power Connectors
1x 6-pin

Graphics Processor

Navi 23
GPU Name
RV670
Navi 23 XL (215-130000016)
GPU Variant
RV670 XT (215-0708005)
RDNA 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
7 nm
Process Size
55 nm
11.06 billion
Transistors
0.666 billion
237 mm²
Die Size
192 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3 (full) 4.0 (partial)
2.1
OpenCL
N/A
1.3
Vulkan
N/A
-
-
-
6.7
Shader Model
4.1

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