Radeon RX 7900 XT vs Radeon HD 6670
We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 1024MB VRAM Radeon HD 6670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 7900 XT 's Advantages
Released 11 years and 7 months late
Boost Clock2394MHz
More VRAM (20GB vs 1024GB)
Larger VRAM bandwidth (800.0GB/s vs 64.00GB/s)
4896 additional rendering cores
Radeon HD 6670 's Advantages
Lower TDP (66W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 7900 XT
+6603%
51480
Radeon HD 6670
768
3DMark Time Spy
Radeon RX 7900 XT
+1172%
26829
Radeon HD 6670
2109
Graphics Card
Nov 2022
Release Date
Apr 2011
Navi III
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1387 MHz
Base Clock
-
2394 MHz
Boost Clock
-
2500 MHz
Memory Clock
1000 MHz
Memory
20GB
Memory Size
1024MB
GDDR6
Memory Type
GDDR5
320bit
Memory Bus
128bit
800.0GB/s
Bandwidth
64.00GB/s
Render Config
84
Compute Units
6
5376
Shading Units
480
336
TMUs
24
192
ROPs
8
84
RT Cores
-
256 KB per Array
L1 Cache
8 KB (per CU)
6 MB
L2 Cache
256 KB
80 MB
L3 Cache
-
Theoretical Performance
459.6 GPixel/s
Pixel Rate
6.400 GPixel/s
804.4 GTexel/s
Texture Rate
19.20 GTexel/s
103.0 TFLOPS
FP16 (half)
-
51.48 TFLOPS
FP32 (float)
768.0 GFLOPS
1.609 TFLOPS
FP64 (double)
-
Board Design
300W
TDP
66W
700 W
Suggested PSU
250 W
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
2x 8-pin
Power Connectors
None
Graphics Processor
Navi 31
GPU Name
Turks
Navi 31 XT
(215-145000156)
GPU Variant
Turks XT
(215-0803000)
RDNA 3.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
5 nm
Process Size
40 nm
57.7 billion
Transistors
0.716 billion
529 mm²
Die Size
118 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.2
OpenCL
1.2
1.3
Vulkan
N/A
6.7
Shader Model
5.0
