Radeon HD 4670 vs Radeon HD 4870 Mac Edition
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 and 512MB VRAM Radeon HD 4870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 4670 Advantages
Lower TDP (59W vs 150W)
Radeon HD 4870 Mac Edition Advantages
Larger VRAM bandwidth (108.8GB/s vs 32.00GB/s)
480 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 4670
480
Radeon HD 4870 Mac Edition
+150%
1200
Graphics Card
Sep 2008
Release Date
Jan 2009
Radeon R700
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1000 MHz
Memory Clock
850 MHz
Memory
512MB
Memory Size
512MB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
32.00GB/s
Bandwidth
108.8GB/s
Render Config
4
Compute Units
10
320
Shading Units
800
32
TMUs
40
8
ROPs
16
16 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
256 KB
Theoretical Performance
6.000 GPixel/s
Pixel Rate
12.00 GPixel/s
24.00 GTexel/s
Texture Rate
30.00 GTexel/s
480.0 GFLOPS
FP32 (float)
1200 GFLOPS
-
FP64 (double)
240.0 GFLOPS
Board Design
59W
TDP
150W
250 W
Suggested PSU
450 W
2x DVI
1x S-Video
1x S-Video
Outputs
1x DVI
1x mini-DisplayPort 1.0
1x mini-DisplayPort 1.0
None
Power Connectors
2x 6-pin
Graphics Processor
RV730
GPU Name
RV770
RV730 XT
(215-0719047)
(215-0719047)
GPU Variant
RV770 XT Mac
(215-0669080)
(215-0669080)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
0.514 billion
Transistors
0.956 billion
146 mm²
Die Size
256 mm²
Graphics Features
10.1 (10_1)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
4.1
Shader Model
4.1
