Home GPU Comparison ATI Radeon HD 4670 X2 vs AMD Radeon HD 7950 Mac Edition

ATI Radeon HD 4670 X2 vs AMD Radeon HD 7950 Mac Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 X2 and 3GB VRAM Radeon HD 7950 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4670 X2 's Advantages
Lower TDP (118W vs 200W)
AMD Radeon HD 7950 Mac Edition 's Advantages
Released 4 years and 6 months late
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (240.0GB/s vs 22.40GB/s)
1472 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 4670 X2
0.48 TFLOPS
Radeon HD 7950 Mac Edition +497%
2.867 TFLOPS
VS

Graphics Card

Sep 2008
Release Date
Mar 2013
Radeon R700
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
700 MHz
Memory Clock
1250 MHz

Memory

512MB
Memory Size
3GB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
384bit
22.40GB/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

118W
TDP
200W
300 W
Suggested PSU
550 W
4x DVI
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
1x 6-pin
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

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