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GPU Comparison
AMD Radeon HD 7970 vs AMD Radeon RX 6900 XTX
AMD Radeon HD 7970 vs AMD Radeon RX 6900 XTX
VS
AMD Radeon HD 7970
AMD Radeon RX 6900 XTX
We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 16GB VRAM Radeon RX 6900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7970 's Advantages
Lower TDP (250W vs 330W)
AMD Radeon RX 6900 XTX 's Advantages
Boost Clock2435MHz
More VRAM (16GB vs 3GB)
Larger VRAM bandwidth (576.0GB/s vs 264.0GB/s)
3072 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 7970
3.789 TFLOPS
Radeon RX 6900 XTX
+557%
24.93 TFLOPS
Radeon HD 7970
VS
Radeon RX 6900 XTX
Graphics Card
Dec 2011
Release Date
Unknown
Southern Islands
Generation
Navi II
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
2075 MHz
-
Boost Clock
2435 MHz
1375 MHz
Memory Clock
2250 MHz
Memory
3GB
Memory Size
16GB
GDDR5
Memory Type
GDDR6
384bit
Memory Bus
256bit
264.0GB/s
Bandwidth
576.0GB/s
Render Config
-
SM Count
-
32
Compute Units
80
2048
Shading Units
5120
128
TMUs
320
32
ROPs
128
-
Tensor Cores
-
-
RT Cores
80
16 KB (per CU)
L1 Cache
128 KB per Array
768 KB
L2 Cache
4 MB
Theoretical Performance
29.60 GPixel/s
Pixel Rate
311.7 GPixel/s
118.4 GTexel/s
Texture Rate
779.2 GTexel/s
-
FP16 (half)
49.87 TFLOPS
3.789 TFLOPS
FP32 (float)
24.93 TFLOPS
947.2 GFLOPS
FP64 (double)
1.558 TFLOPS
Graphics Processor
Tahiti
GPU Name
Navi 21
Tahiti XT (215-0821060)
GPU Variant
Navi 21 XTXH (215-121000247)
GCN 1.0
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
7 nm
4.313 billion
Transistors
26.8 billion
352 mm²
Die Size
520 mm²
Board Design
250W
TDP
330W
600 W
Suggested PSU
700 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C
1x 6-pin + 1x 8-pin
Power Connectors
2x 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
6.5
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