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GPU Comparison
AMD Radeon HD 7970 X2 vs AMD Radeon RX 6600 XT
AMD Radeon HD 7970 X2 vs AMD Radeon RX 6600 XT
VS
AMD Radeon HD 7970 X2
AMD Radeon RX 6600 XT
We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 8GB VRAM Radeon RX 6600 XT 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 256.0GB/s)
AMD Radeon RX 6600 XT 's Advantages
Released 8 years and 11 months late
Boost Clock2589MHz
More VRAM (8GB vs 3GB)
Lower TDP (160W vs 500W)
Score
Benchmark
FP32 (float)
Radeon HD 7970 X2
3.789 TFLOPS
Radeon RX 6600 XT
+179%
10.6 TFLOPS
Radeon HD 7970 X2
VS
Radeon RX 6600 XT
Graphics Card
Aug 2012
Release Date
Jul 2021
Southern Islands
Generation
Navi II
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x8
Clock Speeds
-
Base Clock
1968 MHz
-
Boost Clock
2589 MHz
1375 MHz
Memory Clock
2000 MHz
Memory
3GB
Memory Size
8GB
GDDR5
Memory Type
GDDR6
384bit
Memory Bus
128bit
264.0GB/s
Bandwidth
256.0GB/s
Render Config
-
SM Count
-
32
Compute Units
32
2048
Shading Units
2048
128
TMUs
128
32
ROPs
64
-
Tensor Cores
-
-
RT Cores
32
16 KB (per CU)
L1 Cache
128 KB per Array
768 KB
L2 Cache
2 MB
Theoretical Performance
29.60 GPixel/s
Pixel Rate
165.7 GPixel/s
118.4 GTexel/s
Texture Rate
331.4 GTexel/s
-
FP16 (half)
21.21 TFLOPS
3.789 TFLOPS
FP32 (float)
10.60 TFLOPS
947.2 GFLOPS
FP64 (double)
662.8 GFLOPS
Graphics Processor
New Zealand
GPU Name
Navi 23
-
GPU Variant
Navi 23 XT (215-130000006)
GCN 1.0
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
7 nm
4.313 billion
Transistors
11.06 billion
352 mm²
Die Size
237 mm²
Board Design
500W
TDP
160W
900 W
Suggested PSU
450 W
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x HDMI 2.1 3x DisplayPort 1.4a
3x 8-pin
Power Connectors
1x 8-pin
Graphics Features
12 (11_1)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
1.2
OpenCL
2.1
1.2
Vulkan
1.3
-
CUDA
-
5.1
Shader Model
6.7
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