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GPU Comparison
AMD Radeon RX 6650 XT vs ATI Radeon HD 3870
AMD Radeon RX 6650 XT vs ATI Radeon HD 3870
VS
AMD Radeon RX 6650 XT
ATI Radeon HD 3870
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6650 XT 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 6650 XT 's Advantages
Released 14 years and 6 months late
Boost Clock2635MHz
Larger VRAM bandwidth (280.3GB/s vs 72.06GB/s)
1728 additional rendering cores
ATI Radeon HD 3870 's Advantages
Lower TDP (106W vs 176W)
Score
Benchmark
FP32 (float)
Radeon RX 6650 XT
+2071%
10.79 TFLOPS
Radeon HD 3870
0.497 TFLOPS
Radeon RX 6650 XT
VS
Radeon HD 3870
Graphics Card
May 2022
Release Date
Nov 2007
Navi II
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
2055 MHz
Base Clock
-
2635 MHz
Boost Clock
-
2190 MHz
Memory Clock
1126 MHz
Memory
8GB
Memory Size
512MB
GDDR6
Memory Type
GDDR4
128bit
Memory Bus
256bit
280.3GB/s
Bandwidth
72.06GB/s
Render Config
-
SM Count
-
32
Compute Units
4
2048
Shading Units
320
128
TMUs
16
64
ROPs
16
-
Tensor Cores
-
32
RT Cores
-
128 KB per Array
L1 Cache
-
2 MB
L2 Cache
256 KB
Theoretical Performance
168.6 GPixel/s
Pixel Rate
12.43 GPixel/s
337.3 GTexel/s
Texture Rate
12.43 GTexel/s
21.59 TFLOPS
FP16 (half)
-
10.79 TFLOPS
FP32 (float)
497.3 GFLOPS
674.6 GFLOPS
FP64 (double)
99.46 GFLOPS
Graphics Processor
Navi 23
GPU Name
RV670
Navi 23 KXT (215-130000136)
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
Board Design
176W
TDP
106W
450 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 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
-
CUDA
-
6.5
Shader Model
4.1
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