Radeon HD 4670 vs Radeon HD 2600 XT Mac Edition
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 and 256MB VRAM Radeon HD 2600 XT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 4670 Advantages
Released 7 months late
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (32.00GB/s vs 25.60GB/s)
200 additional rendering cores
Radeon HD 2600 XT Mac Edition Advantages
Lower TDP (45W vs 59W)
Score
Benchmark
FP32 (float)
Radeon HD 4670
+185%
480
Radeon HD 2600 XT Mac Edition
168
Graphics Card
Sep 2008
Release Date
Feb 2008
Radeon R700
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
1000 MHz
Memory Clock
800 MHz
Memory
512MB
Memory Size
256MB
GDDR3
Memory Type
GDDR3
128bit
Memory Bus
128bit
32.00GB/s
Bandwidth
25.60GB/s
Render Config
4
Compute Units
3
320
Shading Units
120
32
TMUs
8
8
ROPs
4
16 KB (per CU)
L1 Cache
-
128 KB
L2 Cache
64 KB
Theoretical Performance
6.000 GPixel/s
Pixel Rate
2.800 GPixel/s
24.00 GTexel/s
Texture Rate
5.600 GTexel/s
480.0 GFLOPS
FP32 (float)
168.0 GFLOPS
Board Design
59W
TDP
45W
250 W
Suggested PSU
200 W
2x DVI
1x S-Video
1x S-Video
Outputs
2x DVI
None
Power Connectors
None
Graphics Processor
RV730
GPU Name
RV630
RV730 XT
(215-0719047)
(215-0719047)
GPU Variant
-
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
65 nm
0.514 billion
Transistors
0.39 billion
146 mm²
Die Size
153 mm²
Graphics Features
10.1 (10_1)
DirectX
10.0 (10_0)
3.3
OpenGL
3.3
1.1
OpenCL
N/A
N/A
Vulkan
N/A
4.1
Shader Model
4.0
