ATI Radeon HD 4670 vs AMD Radeon HD 7990
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 and 3GB VRAM Radeon HD 7990 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 375W)
AMD Radeon HD 7990 's Advantages
Released 4 years and 7 months late
Boost Clock1000MHz
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (288.0GB/s vs 32.00GB/s)
1728 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 4670
0.48 TFLOPS
Radeon HD 7990
+753%
4.096 TFLOPS
3DMark Time Spy
Radeon HD 4670
1410
Radeon HD 7990
+59%
2246
Graphics Card
Sep 2008
Release Date
Apr 2013
Radeon R700
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
950 MHz
-
Boost Clock
1000 MHz
1000 MHz
Memory Clock
1500 MHz
Memory
512MB
Memory Size
3GB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
384bit
32.00GB/s
Bandwidth
288.0GB/s
Render Config
4
Compute Units
32
-
-
-
320
Shading Units
2048
32
TMUs
128
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
32.00 GPixel/s
24.00 GTexel/s
Texture Rate
128.0 GTexel/s
-
-
-
480.0 GFLOPS
FP32 (float)
4.096 TFLOPS
-
FP64 (double)
1024 GFLOPS
Board Design
59W
TDP
375W
250 W
Suggested PSU
750 W
2x DVI
1x S-Video
Outputs
1x DVI
4x mini-DisplayPort 1.2
None
Power Connectors
2x 8-pin
Graphics Processor
RV730
GPU Name
Malta
RV730 XT
(215-0719047)
GPU Variant
Malta XT
(215-0849026)
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
365 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
