FireStream 9250 vs Radeon HD 4870 Mac Edition
We compared two Desktop platform GPUs: 1024MB VRAM FireStream 9250 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
FireStream 9250 's Advantages
More VRAM (1024GB vs 512GB)
Radeon HD 4870 Mac Edition 's Advantages
Released 7 months late
Larger VRAM bandwidth (108.8GB/s vs 63.55GB/s)
Score
Benchmark
FP32 (float)
FireStream 9250
1000
Radeon HD 4870 Mac Edition
+20%
1200
Graphics Card
Jun 2008
Release Date
Jan 2009
FireStream
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
993 MHz
Memory Clock
850 MHz
Memory
1024MB
Memory Size
512MB
GDDR3
Memory Type
GDDR5
256bit
Memory Bus
256bit
63.55GB/s
Bandwidth
108.8GB/s
Render Config
10
Compute Units
10
800
Shading Units
800
40
TMUs
40
16
ROPs
16
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
Theoretical Performance
10.00 GPixel/s
Pixel Rate
12.00 GPixel/s
25.00 GTexel/s
Texture Rate
30.00 GTexel/s
1000 GFLOPS
FP32 (float)
1200 GFLOPS
200.0 GFLOPS
FP64 (double)
240.0 GFLOPS
Board Design
150W
TDP
150W
450 W
Suggested PSU
450 W
1x DVI
Outputs
1x DVI
1x mini-DisplayPort 1.0
1x 6-pin
Power Connectors
2x 6-pin
Graphics Processor
RV770
GPU Name
RV770
RV770 PRO
GPU Variant
RV770 XT Mac
(215-0669080)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
0.956 billion
Transistors
0.956 billion
256 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
