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GPU Comparison
AMD Radeon RX 6400 vs ATI Radeon HD 2950 XTX
AMD Radeon RX 6400 vs ATI Radeon HD 2950 XTX
VS
AMD Radeon RX 6400
ATI Radeon HD 2950 XTX
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 512MB VRAM Radeon HD 2950 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6400 's Advantages
Boost Clock2321MHz
Larger VRAM bandwidth (128.0GB/s vs 72.06GB/s)
448 additional rendering cores
Lower TDP (53W vs 110W)
Score
Benchmark
FP32 (float)
Radeon RX 6400
+617%
3.565 TFLOPS
Radeon HD 2950 XTX
0.497 TFLOPS
Radeon RX 6400
VS
Radeon HD 2950 XTX
Graphics Card
Jan 2022
Release Date
Unknown
Navi II
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 4.0 x4
Bus Interface
PCIe 2.0 x16
Clock Speeds
1923 MHz
Base Clock
-
2321 MHz
Boost Clock
-
2000 MHz
Memory Clock
1126 MHz
Memory
4GB
Memory Size
512MB
GDDR6
Memory Type
GDDR4
64bit
Memory Bus
256bit
128.0GB/s
Bandwidth
72.06GB/s
Render Config
-
SM Count
-
12
Compute Units
4
768
Shading Units
320
48
TMUs
16
32
ROPs
16
-
Tensor Cores
-
12
RT Cores
-
128 KB per Array
L1 Cache
-
1024 KB
L2 Cache
256 KB
Theoretical Performance
74.27 GPixel/s
Pixel Rate
12.43 GPixel/s
111.4 GTexel/s
Texture Rate
12.43 GTexel/s
7.130 TFLOPS
FP16 (half)
-
3.565 TFLOPS
FP32 (float)
497.3 GFLOPS
222.8 GFLOPS
FP64 (double)
99.46 GFLOPS
Graphics Processor
Navi 24
GPU Name
RV670
Navi 24 XL (215-135000046)
GPU Variant
RV670 XTX (215-0708004)
RDNA 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
6 nm
Process Size
55 nm
5.4 billion
Transistors
0.666 billion
107 mm²
Die Size
192 mm²
Board Design
53W
TDP
110W
250 W
Suggested PSU
300 W
1x HDMI 2.1 1x DisplayPort 1.4a
Outputs
2x DVI 1x S-Video
None
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)
2.2
OpenCL
N/A
1.3
Vulkan
N/A
-
CUDA
-
6.6
Shader Model
4.1
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9
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