AMD Radeon RX 7950 XT vs AMD Radeon HD 7950
We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7950 XT and 3GB VRAM Radeon HD 7950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 7950 XT 's Advantages
Boost Clock3000MHz
More VRAM (20GB vs 3GB)
Larger VRAM bandwidth (800.0GB/s vs 240.0GB/s)
3584 additional rendering cores
AMD Radeon HD 7950 's Advantages
Lower TDP (200W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 7950 XT
+2150%
64.51 TFLOPS
Radeon HD 7950
2.867 TFLOPS
Graphics Card
Unknown
Release Date
Jan 2012
Navi III
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
2000 MHz
Base Clock
-
3000 MHz
Boost Clock
-
2500 MHz
Memory Clock
1250 MHz
Memory
20GB
Memory Size
3GB
GDDR6
Memory Type
GDDR5
320bit
Memory Bus
384bit
800.0GB/s
Bandwidth
240.0GB/s
Render Config
84
Compute Units
28
-
-
-
5376
Shading Units
1792
336
TMUs
112
192
ROPs
32
-
-
-
84
RT Cores
-
256 KB per Array
L1 Cache
16 KB (per CU)
6 MB
L2 Cache
768 KB
80 MB
L3 Cache
-
Theoretical Performance
576.0 GPixel/s
Pixel Rate
25.60 GPixel/s
1008 GTexel/s
Texture Rate
89.60 GTexel/s
129.0 TFLOPS
FP16 (half)
-
64.51 TFLOPS
FP32 (float)
2.867 TFLOPS
2.016 TFLOPS
FP64 (double)
716.8 GFLOPS
Board Design
300W
TDP
200W
700 W
Suggested PSU
550 W
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
2x 8-pin
Power Connectors
2x 6-pin
Graphics Processor
Navi 31
GPU Name
Tahiti
Navi 31 XT+
GPU Variant
Tahiti PRO
(215-0821056)
RDNA 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
57.7 billion
Transistors
4.313 billion
529 mm²
Die Size
352 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.2
OpenCL
1.2
1.3
Vulkan
1.2
-
-
-
6.7
Shader Model
5.1
