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GPU Comparison
AMD Radeon HD 7970 X2 vs AMD Radeon RX 6400
AMD Radeon HD 7970 X2 vs AMD Radeon RX 6400
VS
AMD Radeon HD 7970 X2
AMD Radeon RX 6400
We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 4GB VRAM Radeon RX 6400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7970 X2 's Advantages
Larger VRAM bandwidth (264.0GB/s vs 128.0GB/s)
1280 additional rendering cores
AMD Radeon RX 6400 's Advantages
Released 9 years and 5 months late
Boost Clock2321MHz
More VRAM (4GB vs 3GB)
Lower TDP (53W vs 500W)
Score
Benchmark
FP32 (float)
Radeon HD 7970 X2
+6%
3.789 TFLOPS
Radeon RX 6400
3.565 TFLOPS
Radeon HD 7970 X2
VS
Radeon RX 6400
Graphics Card
Aug 2012
Release Date
Jan 2022
Southern Islands
Generation
Navi II
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x4
Clock Speeds
-
Base Clock
1923 MHz
-
Boost Clock
2321 MHz
1375 MHz
Memory Clock
2000 MHz
Memory
3GB
Memory Size
4GB
GDDR5
Memory Type
GDDR6
384bit
Memory Bus
64bit
264.0GB/s
Bandwidth
128.0GB/s
Render Config
-
SM Count
-
32
Compute Units
12
2048
Shading Units
768
128
TMUs
48
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
12
16 KB (per CU)
L1 Cache
128 KB per Array
768 KB
L2 Cache
1024 KB
Theoretical Performance
29.60 GPixel/s
Pixel Rate
74.27 GPixel/s
118.4 GTexel/s
Texture Rate
111.4 GTexel/s
-
FP16 (half)
7.130 TFLOPS
3.789 TFLOPS
FP32 (float)
3.565 TFLOPS
947.2 GFLOPS
FP64 (double)
222.8 GFLOPS
Graphics Processor
New Zealand
GPU Name
Navi 24
-
GPU Variant
Navi 24 XL (215-135000046)
GCN 1.0
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
6 nm
4.313 billion
Transistors
5.4 billion
352 mm²
Die Size
107 mm²
Board Design
500W
TDP
53W
900 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x HDMI 2.1 1x DisplayPort 1.4a
3x 8-pin
Power Connectors
None
Graphics Features
12 (11_1)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
1.2
OpenCL
2.2
1.2
Vulkan
1.3
-
CUDA
-
5.1
Shader Model
6.6
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