ATI Radeon HD 4670 vs AMD Radeon HD 7950
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 and 3GB VRAM Radeon HD 7950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4670 's Advantages
Lower TDP (59W vs 200W)
AMD Radeon HD 7950 's Advantages
Released 3 years and 4 months late
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (240.0GB/s vs 32.00GB/s)
1472 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 4670
0.48 TFLOPS
Radeon HD 7950
+497%
2.867 TFLOPS
3DMark Time Spy
Radeon HD 4670
1410
Radeon HD 7950
+39%
1969
Graphics Card
Sep 2008
Release Date
Jan 2012
Radeon R700
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
1000 MHz
Memory Clock
1250 MHz
Memory
512MB
Memory Size
3GB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
384bit
32.00GB/s
Bandwidth
240.0GB/s
Render Config
4
Compute Units
28
-
-
-
320
Shading Units
1792
32
TMUs
112
8
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
768 KB
-
-
-
Theoretical Performance
6.000 GPixel/s
Pixel Rate
25.60 GPixel/s
24.00 GTexel/s
Texture Rate
89.60 GTexel/s
-
-
-
480.0 GFLOPS
FP32 (float)
2.867 TFLOPS
-
FP64 (double)
716.8 GFLOPS
Board Design
59W
TDP
200W
250 W
Suggested PSU
550 W
2x DVI
1x S-Video
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
None
Power Connectors
2x 6-pin
Graphics Processor
RV730
GPU Name
Tahiti
RV730 XT
(215-0719047)
GPU Variant
Tahiti PRO
(215-0821056)
TeraScale
Architecture
GCN 1.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.514 billion
Transistors
4.313 billion
146 mm²
Die Size
352 mm²
Graphics Features
10.1 (10_1)
DirectX
12 (11_1)
3.3
OpenGL
4.6
1.1
OpenCL
1.2
N/A
Vulkan
1.2
-
-
-
4.1
Shader Model
5.1
